Reasoning Labs — Employee Census

Rosters of current employees at 13 frontier reasoning labs — individual contributors (Member of Technical Staff, research scientists, research engineers), not just leadership. Compiled August 9, 2026 via Keenable search from tech-report and model-card contributor lists, LinkedIn joining posts and indexed profiles, lab team pages and research-blog bylines, org-chart aggregators, and 2025–26 press. Known departures are cross-checked and excluded (each lab's caveats list them). LinkedIn URLs come from public search — headlines can lag recent moves, so re-check at outreach time.

13Labs

957People

657High confidence

131LinkedIn URLs

Lab profiles

What we learned about each target lab while building the census — size, posture, and where its people are actually visible.

Lab	Website	Profile (as of Aug 2026)	People visibility
OpenAI	openai.com	Originator of the o-series test-time-compute paradigm; chief scientist Jakub Pachocki pointing the lab at a fully automated AI researcher. Heavy 2025–26 attrition to Meta and startups, partly offset by boomerang returns (Ruoming Pang, ex-TML researchers).	Model-card contributor lists are the best roster source; thin LinkedIn indexing.
Anthropic	anthropic.com	Claude extended-thinking models and RL post-training; MCP originator; net poacher of DeepMind reasoning talent in 2026. Interpretability and alignment teams publish full author bylines, making their ICs unusually identifiable.	Best-documented big lab: research-blog bylines + staff post joining announcements (39 LinkedIn URLs).
Meta Superintelligence Labs	ai.meta.com	Formed mid-2025 under Alexandr Wang; aggregated more ex-frontier talent than anyone (Jason Wei, Hyung Won Chung, Denny Zhou, five ex-TML founders) via the "list of 44" and 2026 acqui-hires — but volatile: ~600-person layoff Oct 2025 plus notable boomerangs back to OpenAI.	Press-documented rosters; 20 LinkedIn URLs; long-tail hires need individual re-confirmation.
Mistral AI	mistral.ai	Paris; post-€2B Series C, grew ~350 → ~1,000 staff by May 2026; Magistral reasoning line plus Voxtral (speech) and Devstral (code). 2025-26 exec build-out (CFO/CMO/CRO hires).	Tech-report author lists carry the roster; LinkedIn strong for leadership, weak in the index for ICs.
Cohere	cohere.com	Toronto/SF/London; enterprise-focused (Command A, Aya multilingual line); Joelle Pineau joined as Chief AI Officer (Aug 2025); Cohere Labs now led by Marzieh Fadaee after Sara Hooker's departure.	Command A tech report (~220 authors) + a public blog-author roster with titles.
Moonshot AI	moonshot.ai	Beijing; Kimi K3 (July 2026) at the open-reasoning frontier; deliberately flat five-founder org with no public IC titles; 400+ R&E contributors on K3.	Zero LinkedIn; contributor appendices across K2→K2.5→K3 establish sustained tenure.
DeepSeek	deepseek.com	Hangzhou; R1 proved the pure-RL reasoning recipe, V4 (Apr 2026) continues it with ~260 R&E staff; hit by a 2025-26 poaching wave (Daya Guo → ByteDance, Luo Fuli → Xiaomi) and responded with no-poach clauses.	Zero LinkedIn; V4 report Appendix A is effectively a company-confirmed roster that stars departed members.
xAI	x.ai	Grok models + Colossus compute; merged into the X/SpaceX structure and mid-rebuild for Grok 5 — very high churn (Babuschkin, Tony Wu, Jimmy Ba, Szegedy all out; Devendra Chaplot in as pre-training lead). Titles volatile.	Staff live on X, not LinkedIn; org-chart press and personal sites carry the roster.
Thinking Machines Lab	thinkingmachines.ai	Mira Murati's ~145-person lab; Tinker fine-tuning product and the Connectionism research blog; survived a Jan–Jul 2026 exodus (15 named departures incl. 4 co-founders — Lilian Weng back to OpenAI July 2026); John Schulman (Chief Scientist) and Soumith Chintala (CTO) anchor it.	Most LinkedIn-visible lab in the census (43 URLs); staff announce joins publicly.
Reflection AI	reflection.ai	DeepMind-alumni frontier open-model lab ($2B+ raised; DOE/national-labs model provider 2026) building toward superintelligent autonomous coding agents; unusually private — no public team page.	Honest public ceiling ~24 names, via org-chart aggregators and personal sites.
Safe Superintelligence	ssi.inc	Ilya Sutskever's lab (~$32B valuation, Nvidia partnership, first model reportedly ~Aug 2026); ~50 staff heading toward 100; staff discouraged from listing SSI anywhere.	Only 5 publicly named people, all via Israeli press covering the Tel Aviv office.
Periodic Labs	periodic.com	Liam Fedus (ex-OpenAI VP post-training) + Ekin Dogus Cubuk (ex-GDM); AI-for-physical-science with a ~$300M seed; ~40 staff and hiring (18 open roles); poached Rishabh Agarwal from Meta MSL.	Own team page names 26; an investor memo's LinkedIn scrape covers the rest.
Discovery Loop	—	Announced Aug 5, 2026 by Jeff Dean, Quoc Le, Oriol Vinyals, and Sanjay Ghemawat, all departing Google/DeepMind; had not begun hiring at launch.	Four founders are the complete public roster.

Census (957 people)

Representative rosters of CURRENT employees at frontier reasoning labs — individual contributors (MTS / research scientists / engineers), not just leadership. Compiled August 9, 2026 from LinkedIn joining posts and indexed profiles, tech-report contributor lists, team pages, org-chart aggregators, and 2025–26 press; known departures cross-checked and excluded (see each lab's caveats). Confidence: high = 2025–26 evidence the person is there now; medium = on a strong roster (paper author list, hire list) without individual re-confirmation. LinkedIn coverage tracks lab culture — near-complete secrecy at DeepSeek, Moonshot, and SSI means backup profiles (GitHub/Scholar/homepages) replace LinkedIn there.

Lab	Rows	Leadership	IC	With LinkedIn
Anthropic	125	15	110	39
OpenAI	124	13	111	7
Mistral AI	124	20	104	6
Meta Superintelligence Labs	111	17	94	20
Cohere	93	24	69	7
Moonshot AI	81	7	74	0
xAI	79	21	58	4
DeepSeek	78	3	75	0
Thinking Machines Lab	66	8	58	43
Periodic Labs	43	3	40	0
Reflection AI	24	8	16	5
Safe Superintelligence (SSI)	5	2	3	0
Discovery Loop	4	4	0	0
Total	957			131

OpenAI (124)

Name	Role/title	Level	LinkedIn	Backup	Evidence	Confidence
Sam Altman	CEO	Leadership	—	—	arxiv.org/abs/2508.10925	high
Greg Brockman	President, Co-founder	Leadership	—	X @gdb	arxiv.org/abs/2508.10925	high
Mark Chen	Chief Research Officer	Leadership	—	X @markchen90	wew.twstalker.com/YuanYuanSunSara	high
Jakub Pachocki	Chief Scientist	Leadership	—	—	arxiv.org/abs/2508.10925	high
Wojciech Zaremba	Co-founder, Research	Leadership	—	—	arxiv.org/abs/2508.10925	high
Jason Kwon	Chief Strategy Officer	Leadership	—	—	arxiv.org/abs/2508.10925	high
Dane Stuckey	CISO	Leadership	—	—	arxiv.org/abs/2508.10925	high
Kevin Weil	Chief Product Officer	Leadership	—	—	arxiv.org/abs/2508.10925	medium
Aidan Clark	VP, Pretraining Research	Leadership	—	—	arxiv.org/abs/2508.10925	high
Mia Glaese	Research (alignment lead)	Leadership	—	—	arxiv.org/abs/2508.10925	high
Johannes Heidecke	Safety Systems lead	Leadership	—	—	arxiv.org/abs/2508.10925	high
D. Sculley	Research leadership	Leadership	—	—	arxiv.org/abs/2508.10925	high
Hannah Wong	VP Communications	Leadership	—	—	arxiv.org/abs/2508.10925	high
Sebastien Bubeck	Research (frontier/AGI)	IC	—	—	arxiv.org/abs/2508.10925	high
Boaz Barak	Research Scientist (safety)	IC	—	—	arxiv.org/abs/2508.10925	high
Noam Brown	Member of Technical Staff (reasoning research)	IC	—	X @polynoamial	twstalker.com/polynoamial	high
Nick Ryder	Research lead (data & scaling)	IC	in/nick-ryder-84774117b	—	in/nick-ryder-84774117b	high
Alex Paino	Member of Technical Staff (pretraining)	IC	—	—	arxiv.org/abs/2508.10925	high
Alex Nichol	Member of Technical Staff	IC	—	—	arxiv.org/abs/2508.10925	high
Yang Song	Research Scientist	IC	—	—	arxiv.org/abs/2508.10925	high
Shengjia Zhao	Research Scientist	IC	—	—	arxiv.org/abs/2508.10925	high
Hongyu Ren	Member of Technical Staff	IC	—	—	arxiv.org/abs/2508.10925	high
Kevin Lu	Member of Technical Staff	IC	—	—	arxiv.org/abs/2508.10925	high
Chris Lu	Member of Technical Staff	IC	—	—	arxiv.org/abs/2508.10925	high
Ji Lin	Member of Technical Staff	IC	—	—	arxiv.org/abs/2508.10925	high
Jiancheng (JC) Liu	Member of Technical Staff	IC	—	ljcc0930.github.io	ljcc0930.github.io	high
Lily (Xiaoxuan) Liu	Member of Technical Staff	IC	—	—	arxiv.org/abs/2508.10925	high
Eric Wallace	Research Scientist (safety)	IC	—	—	arxiv.org/abs/2508.10925	high
Miles Wang	Member of Technical Staff	IC	—	—	arxiv.org/abs/2508.10925	high
Xin Wang	Member of Technical Staff	IC	—	—	arxiv.org/abs/2508.10925	high
Olivia Watkins	Member of Technical Staff	IC	—	—	arxiv.org/abs/2508.10925	high
Michihiro Yasunaga	Research Scientist	IC	—	—	arxiv.org/abs/2508.10925	high
Cyril Zhang	Member of Technical Staff	IC	—	—	arxiv.org/abs/2508.10925	high
Brian Zhang	Member of Technical Staff	IC	—	—	arxiv.org/abs/2508.10925	high
Eddie Zhang	Member of Technical Staff	IC	—	—	arxiv.org/abs/2508.10925	high
Wenting Zhan	Member of Technical Staff	IC	—	—	arxiv.org/abs/2508.10925	high
Zhiqing Sun	Member of Technical Staff	IC	—	—	arxiv.org/abs/2508.10925	high
Max Schwarzer	Member of Technical Staff (RL)	IC	—	—	arxiv.org/abs/2508.10925	high
Hadi Salman	Research Scientist	IC	—	—	in/yubai01	high
Karan Singhal	Member of Technical Staff (health)	IC	—	—	arxiv.org/abs/2508.10925	high
Harshit Sikchi	Member of Technical Staff	IC	—	—	arxiv.org/abs/2508.10925	high
Suvansh Sanjeev	Member of Technical Staff	IC	—	—	arxiv.org/abs/2508.10925	high
Philippe Tillet	Member of Technical Staff (Triton)	IC	—	—	arxiv.org/abs/2508.10925	high
Nikhil Vyas	Member of Technical Staff	IC	—	—	arxiv.org/abs/2508.10925	high
Foivos Tsimpourlas	Member of Technical Staff	IC	—	—	arxiv.org/abs/2508.10925	high
Tong Mu	Member of Technical Staff	IC	—	—	arxiv.org/abs/2508.10925	high
Song Mei	Research Scientist	IC	—	—	arxiv.org/abs/2508.10925	high
Aidan McLaughlin	Member of Technical Staff	IC	—	—	arxiv.org/abs/2508.10925	high
Alexander Neitz	Member of Technical Staff	IC	—	—	arxiv.org/abs/2508.10925	high
Giambattista Parascandolo	Member of Technical Staff	IC	—	—	arxiv.org/abs/2508.10925	high
Jongsoo Park	Member of Technical Staff (systems)	IC	—	—	arxiv.org/abs/2508.10925	high
Michelle Pokrass	Member of Technical Staff (API)	IC	—	—	arxiv.org/abs/2508.10925	high
Dmitry Pimenov	Member of Technical Staff	IC	—	—	arxiv.org/abs/2508.10925	high
Huida Qiu	Member of Technical Staff	IC	—	—	arxiv.org/abs/2508.10925	high
Bob Rotsted	Member of Technical Staff	IC	—	—	arxiv.org/abs/2508.10925	high
David Robinson	Member of Technical Staff	IC	—	—	arxiv.org/abs/2508.10925	high
Yu Yang	Member of Technical Staff	IC	—	—	arxiv.org/abs/2508.10925	high
Lin Yang	Member of Technical Staff	IC	—	—	arxiv.org/abs/2508.10925	high
Rahul K. Arora	Member of Technical Staff	IC	—	—	arxiv.org/abs/2508.10925	high
Yu Bai	Member of Technical Staff (training)	IC	in/yubai01	—	in/yubai01	medium
Bowen Baker	Research Scientist (safety)	IC	—	—	arxiv.org/abs/2508.10925	high
Haiming Bao	Member of Technical Staff	IC	—	—	arxiv.org/abs/2508.10925	high
Eugene Brevdo	Member of Technical Staff (systems)	IC	—	—	arxiv.org/abs/2508.10925	high
Che Chang	Member of Technical Staff	IC	—	—	arxiv.org/abs/2508.10925	high
Kai Chen	Research (pretraining)	IC	—	—	arxiv.org/abs/2508.10925	high
Enoch Cheung	Member of Technical Staff	IC	—	—	arxiv.org/abs/2508.10925	high
Marat Dukhan	Member of Technical Staff (systems)	IC	—	—	arxiv.org/abs/2508.10925	high
Vlad Fomenko	Member of Technical Staff	IC	—	—	arxiv.org/abs/2508.10925	high
Timur Garipov	Member of Technical Staff	IC	—	—	arxiv.org/abs/2508.10925	high
Kristian Georgiev	Member of Technical Staff	IC	—	—	arxiv.org/abs/2508.10925	high
Tarun Gogineni	Member of Technical Staff	IC	in/tarun-gogineni-488551b4	—	in/tarun-gogineni-488551b4	high
Lukas Gross	Member of Technical Staff	IC	—	—	arxiv.org/abs/2508.10925	high
John Hallman	Member of Technical Staff	IC	—	—	arxiv.org/abs/2508.10925	high
Alec Helyar	Member of Technical Staff	IC	—	—	arxiv.org/abs/2508.10925	high
Haitang Hu	Member of Technical Staff	IC	—	—	arxiv.org/abs/2508.10925	high
Jacob Huh	Member of Technical Staff	IC	—	—	arxiv.org/abs/2508.10925	high
Saachi Jain	Member of Technical Staff (safety)	IC	—	—	arxiv.org/abs/2508.10925	high
Volodymyr Kyrylov	Member of Technical Staff	IC	—	—	arxiv.org/abs/2508.10925	high
Guillaume Leclerc	Member of Technical Staff	IC	—	—	arxiv.org/abs/2508.10925	high
Mario Lezcano-Casado	Member of Technical Staff	IC	—	—	arxiv.org/abs/2508.10925	high
Yuanzhi Li	Member of Technical Staff	IC	—	—	arxiv.org/abs/2508.10925	high
Elaine Ya Le	Member of Technical Staff	IC	—	—	arxiv.org/abs/2508.10925	high
Josh McGrath	Member of Technical Staff	IC	—	—	arxiv.org/abs/2508.10925	high
Andy Applebaum	Member of Technical Staff (safety)	IC	—	—	arxiv.org/abs/2508.10925	high
Sandhini Agarwal	Research (policy/safety)	IC	—	—	arxiv.org/abs/2508.10925	high
Lama Ahmad	Research (policy)	IC	—	—	arxiv.org/abs/2508.10925	high
Jason Ai	Member of Technical Staff	IC	—	—	arxiv.org/abs/2508.10925	high
Beichen Li	Member of Technical Staff (robotics research)	IC	in/beichen-li-ba9b34106	—	in/beichen-li-ba9b34106	high
Raul Puri	Member of Technical Staff	IC	in/raul-puri-3a0b43a0	—	in/raul-puri-3a0b43a0	high
Katherine Lee	Research Engineer (privacy/security)	IC	in/katherinelee8	—	in/katherinelee8	high
Gabriel Wu	Research (AI safety)	IC	in/gabriel-d-wu	—	in/gabriel-d-wu	high
Brendan Gregg	Member of Technical Staff (performance eng, ChatGPT)	IC	—	brendangregg.com	news.ycombinator.com/item?id=46920487	high
Suyash Shringarpure	Member of Technical Staff (health)	IC	—	—	forum.openai.com/en/public/videos/event-r…	high
Akshay Jagadeesh	Research Resident (neuroscience)	IC	—	—	timesofindia.indiatimes.com/technology/te…	high
Jigar Bhati	Member of Technical Staff (software eng)	IC	—	—	businessinsider.com/openai-software-engin…	high
Alex Beutel	Member of Technical Staff / Research Scientist	IC	—	—	getprog.ai/profile/55969	high
Om Thakkar	Member of Technical Staff (privacy)	IC	—	omthakkar.com	cics.umass.edu/events/mass-aisec-sp25-sem…	high
Christina Kim	Member of Technical Staff	IC	—	—	forum.openai.com/home/videos/alternative-…	high
Will DePue	Member of Technical Staff (Sora)	IC	—	X @willdepue	techchilli.com/artificial-intelligence/wi…	high
Brydon Eastman	Research Scientist / Member of Technical Staff	IC	—	—	forum.openai.com/public/events/virtual-ev…	high
Zoë Hitzig	Research Scientist	IC	—	—	forum.openai.com/public/events/virtual-ev…	high
Brandon McKinzie	Member of Technical Staff (multimodal)	IC	—	—	aiscroll.io/article/openai/openai-omni-mo…	high
Ryan Lopopolo	Member of Technical Staff	IC	—	—	pod.wave.co/podcast/product-growth-podcas…	high
Mark Gottscho	Member of Technical Staff	IC	—	markgottscho.com	seas.ucla.edu/~gottscho	high
David Schnurr	Member of Technical Staff (ChatGPT/Canvas)	IC	—	—	me.sh/profile/david-schnurr	high
Ted Sanders	Research (API/cookbook)	IC	—	X @sandersted	twstalker.com/polynoamial	high
Isa Fulford	Member of Technical Staff (Deep Research)	IC	—	X @isafulf	scijournal.org/articles/ai-prompts-courses	high
Chelsea Voss	Member of Technical Staff	IC	—	—	ir.qctechnologies.com/sec-filings/all-sec…	high
Zheng Wen	Member of Technical Staff	IC	—	zheng-wen.com	zheng-wen.com	high
Tyna Eloundou	Member of Technical Staff (researcher)	IC	—	—	forum.openai.com/home/videos/event-replay…	high
Rachel Lim	Member of Technical Staff	IC	—	—	me.sh/profile/rachel-lim-34ff20ed	high
Joyce Ruffell	Member of Technical Staff	IC	—	—	dataiwarsaw.tech/prelegenci/joyce-ruffell	high
Nick Steele	Member of Technical Staff (identity)	IC	—	—	fidoalliance.org/overview/leadership	high
Zhaofeng Wu	Research (Member of Technical Staff)	IC	—	X @zhaofeng_wu	remaja.twstalker.com/zhaofeng_wu	high
Lun Wang	Research (ex-DeepMind/Berkeley)	IC	—	—	wew.twstalker.com/hhsun1	medium
Darin Fisher	Member of Technical Staff (browser)	IC	—	—	theoutpost.ai/news-story/open-ai-rumored-…	high
Cameron Raymond	Member of Technical Staff (safety research)	IC	—	—	remaja.twstalker.com/parvmahajan0	high
Vahid Kazemi	Member of Technical Staff	IC	—	—	latestly.com/socially/technology/ex-apple…	medium
Ping Zhang	Member of Technical Staff	IC	—	—	sessionize.com/ping-zhang	medium
Howie Wang	Member of Technical Staff	IC	—	—	airflowsummit.org/speakers/howie-wang	medium
Rohan Mehta	Member of Technical Staff	IC	—	—	startupintros.com/people/rohan-mehta	medium
Romain Huet	Head of Developer Experience	IC	—	X @romainhuet	arxiv.org/abs/2508.10925	high
Dominik Kundel	Member of Technical Staff (DevRel)	IC	—	—	arxiv.org/abs/2508.10925	high
Kevin Whinnery	Member of Technical Staff (DevRel)	IC	—	—	arxiv.org/abs/2508.10925	high

Caveats & departures excluded (5)

Primary sources (most productive):
Confidence: "high" = 2025-26 evidence of current employment (gpt-oss card is Aug 2025; forum/press/LinkedIn are 2025-26). "medium" = evidence is 2024-era, indirect, or the name is common enough to risk misattribution (e.g., Yu Bai — multiple people share the name and one "Yu Bai" reportedly moved to Meta; Vahid Kazemi joined Oct 2024; Rohan/Ping/Howie from conference bios without a fresh date).
People deliberately EXCLUDED because they left OpenAI: Zhuohan Li (→Meta; appears in the gpt-oss list but has since departed), Karina Nguyen (→Anthropic, despite a stale profile still reading "MTS at OpenAI"), Jason Wei & Hyung Won Chung (→Meta 2025), Shunyu Yao (→Tencent Dec 2025), Barret Zoph (left June 2026 — his LinkedIn still surfaces but he is no longer current), Kelvin Xu (LinkedIn now shows Meta). Noam Shazeer was NOT included — the only "joined OpenAI" signal was a single dubious June-2026 aggregator headline (htx.com) that contradicts his known Google/Gemini role.
Coverage gaps: Most gpt-oss contributors could not be matched to a canonical LinkedIn URL within this pass (LinkedIn heavily rate-limits indexing), so LinkedIn column is blank for the bulk and evidence points to the model card. A handful of non-technical contributors from the model card (legal, comms, policy ops — e.g., Ashley Pantuliano, Gaby Raila, Lindsay McCallum) were omitted to keep the census weighted toward technical ICs as requested. The gpt-oss card is a partial snapshot of OpenAI (one model team) — it under-represents robotics, Sora/video, infra, and applied/product-engineering orgs, which are only partially captured here via the supplementary LinkedIn/press rows.
Leadership vs IC split is intentional: ~13 leadership rows (CEO/CRO/CSO/VP tier and comms), the remaining ~110 are ICs (MTS, research scientists, research engineers, residents), matching the "bulk must be ICs" requirement.

Anthropic (125)

Name	Role/title	Level	LinkedIn	Backup	Evidence	Confidence
Jack Lindsey	Interpretability research scientist (MTS)	IC	—	—	transformer-circuits.pub/2026/emotions/in…	high
Chris Olah	Co-founder; interpretability lead	Leadership	in/christopher-olah-b574414a	@ch402 (X)	transformer-circuits.pub/2025/attribution…	high
Joshua Batson	Interpretability research scientist / team lead (MTS)	IC	—	—	transformer-circuits.pub/2026/nla/index.h…	high
Wes Gurnee	Interpretability research scientist (MTS)	IC	—	@wesg52 (X)	transformer-circuits.pub/2025/linebreaks/…	high
Emmanuel Ameisen	Interpretability research/engineer (MTS)	IC	—	—	transformer-circuits.pub/2026/nla/index.h…	high
Brian Chen	Interpretability research (MTS)	IC	—	—	transformer-circuits.pub/2025/attribution…	high
Adam Pearce	Interpretability research/viz (MTS)	IC	—	—	transformer-circuits.pub/2026/emotions/in…	high
Nicholas L. Turner	Interpretability research (MTS)	IC	—	—	transformer-circuits.pub/2025/attribution…	high
Craig Citro	Interpretability research/engineer (MTS)	IC	—	—	transformer-circuits.pub/2026/emotions/in…	high
David Abrahams	Interpretability research (MTS)	IC	—	—	transformer-circuits.pub/2025/attribution…	high
Shan Carter	Interpretability research/viz (MTS)	IC	—	—	transformer-circuits.pub/2025/attribution…	high
Basil Hosmer	Interpretability engineer (MTS)	IC	—	—	transformer-circuits.pub/2025/attribution…	high
Jonathan Marcus	Interpretability research (MTS)	IC	—	—	transformer-circuits.pub/2025/attribution…	high
Michael Sklar	Interpretability research (MTS)	IC	—	—	transformer-circuits.pub/2025/attribution…	high
Adly Templeton	Interpretability research (MTS)	IC	—	—	transformer-circuits.pub/2025/attribution…	high
Trenton Bricken	Interpretability / alignment research (MTS)	IC	—	@TrentonBricken (X)	alignment.anthropic.com/2025/automated-au…	high
Callum McDougall	Interpretability research (MTS)	IC	—	—	transformer-circuits.pub/2025/attribution…	high
Hoagy Cunningham	Interpretability / alignment research (MTS)	IC	—	—	alignment.anthropic.com/2025/cheap-monito…	high
Thomas (Tom) Henighan	Interpretability research (MTS)	IC	—	—	transformer-circuits.pub/2026/emotions/in…	high
Adam Jermyn	Interpretability research (MTS)	IC	—	—	transformer-circuits.pub/2025/attribution…	high
Andy Jones	Interpretability research/engineer (MTS)	IC	—	—	transformer-circuits.pub/2025/attribution…	high
Andrew Persic	Interpretability research (MTS)	IC	—	—	transformer-circuits.pub/2025/attribution…	high
Zhenyi Qi	Interpretability research (MTS)	IC	—	—	transformer-circuits.pub/2025/attribution…	high
T. Ben Thompson	Interpretability research (MTS)	IC	—	—	transformer-circuits.pub/2025/attribution…	high
Samuel (Sam) Zimmerman	Interpretability research/engineer (MTS)	IC	—	—	transformer-circuits.pub/2026/nla/index.h…	high
Kelley Rivoire	Interpretability research/engineer (MTS)	IC	—	—	transformer-circuits.pub/2026/emotions/in…	high
Thomas Conerly	Interpretability research (MTS)	IC	—	—	transformer-circuits.pub/2025/attribution…	high
Nicholas Sofroniew	Interpretability research scientist (MTS)	IC	—	—	transformer-circuits.pub/2026/emotions/in…	high
Isaac Kauvar	Interpretability research (MTS)	IC	—	—	transformer-circuits.pub/2026/emotions/in…	high
Runjin Chen	Interpretability research (MTS)	IC	—	—	transformer-circuits.pub/2026/emotions/in…	high
Sasha Hydrie	Interpretability research (MTS)	IC	—	—	transformer-circuits.pub/2026/emotions/in…	high
Julius Tarng	Interpretability engineer/design (MTS)	IC	—	—	transformer-circuits.pub/2026/emotions/in…	high
Kyle Fish	Model welfare researcher (MTS)	IC	—	—	transformer-circuits.pub/2026/emotions/in…	high
Kit Fraser-Taliente	Interpretability research (MTS)	IC	—	—	transformer-circuits.pub/2026/nla/index.h…	high
Subhash Kantamneni	Interpretability research (MTS)	IC	—	—	transformer-circuits.pub/2026/nla/index.h…	high
Euan Ong	Interpretability / alignment research (MTS)	IC	—	—	transformer-circuits.pub/2026/nla/index.h…	high
Dan Mossing	Interpretability research (MTS)	IC	—	—	transformer-circuits.pub/2026/nla/index.h…	high
Christina Lu	Interpretability research (MTS)	IC	—	—	transformer-circuits.pub/2026/nla/index.h…	high
Paul C. Bogdan	Interpretability research (MTS)	IC	—	—	transformer-circuits.pub/2026/nla/index.h…	high
James Chen	Interpretability research/engineer (MTS)	IC	—	—	transformer-circuits.pub/2026/nla/index.h…	high
Dzmitry Kishylau	Interpretability engineer (MTS)	IC	—	—	transformer-circuits.pub/2026/nla/index.h…	high
Alex Wu	Interpretability research/engineer (MTS)	IC	—	—	transformer-circuits.pub/2026/nla/index.h…	high
Jeff Wu	Research / alignment (MTS)	IC	—	—	transformer-circuits.pub/2026/nla/index.h…	high
Yang Zhang	Interpretability research (MTS)	IC	—	—	transformer-circuits.pub/2026/nla/index.h…	high
Daniel M. Ziegler	Alignment / interpretability research (MTS)	IC	—	—	transformer-circuits.pub/2026/nla/index.h…	high
Samuel Marks	Alignment research scientist (MTS)	IC	—	@saprmarks (X)	alignment.anthropic.com/2026/msm	high
Harish Kamath	Interpretability research (MTS)	IC	—	—	transformer-circuits.pub/2025/attention-q…	high
Rodrigo Luger	Interpretability research (MTS)	IC	—	—	transformer-circuits.pub/2025/attention-q…	high
Evan Hubinger	Alignment Stress-Testing lead (MTS)	IC	in/ehubinger	—	alignment.anthropic.com/2025/automated-au…	high
Rowan Wang	Alignment research (MTS)	IC	—	—	alignment.anthropic.com/2025/automated-au…	high
Sam Bowman	Alignment research scientist / team lead (MTS)	IC	in/sr-bowman	@sleepinyourhat (X)	alignment.anthropic.com/2025/automated-au…	high
Johannes Treutlein	Alignment research (MTS)	IC	—	—	alignment.anthropic.com/2025/automated-au…	high
Avery Griffin	Alignment research (MTS)	IC	—	—	alignment.anthropic.com/2025/modifying-be…	high
Ethan Perez	Alignment research scientist / team lead (MTS)	IC	in/ethanjperez	—	alignment.anthropic.com/2025/modifying-be…	high
Fabien Roger	Alignment research (MTS)	IC	—	—	alignment.anthropic.com/2025/cheap-monito…	high
Alwin Peng	Alignment research (MTS)	IC	—	—	alignment.anthropic.com/2025/cheap-monito…	high
Jerry Wei	Alignment research (MTS)	IC	—	—	alignment.anthropic.com/2025/cheap-monito…	high
Linda Petrini	Alignment research (MTS)	IC	—	—	alignment.anthropic.com/2025/cheap-monito…	high
Misha Wagner	Alignment research (MTS)	IC	—	—	alignment.anthropic.com/2025/cheap-monito…	high
Vladimir Mikulik	Alignment / interpretability research (MTS)	IC	—	—	alignment.anthropic.com/2025/cheap-monito…	high
Mrinank Sharma	Safeguards / alignment research (MTS)	IC	—	—	alignment.anthropic.com/2025/cheap-monito…	high
Nevan Wichers	Alignment research (MTS)	IC	—	—	alignment.anthropic.com/2026/msm	high
Sara Price	Alignment research (MTS)	IC	—	—	alignment.anthropic.com/2026/msm	high
Jon Kutasov	Alignment research (MTS)	IC	—	—	alignment.anthropic.com/2026/msm	high
Joe Benton	Alignment research (MTS)	IC	—	—	alignment.anthropic.com/2026/automated-w2…	high
Jiaxin Wen	Alignment research (MTS/Fellow)	IC	—	—	alignment.anthropic.com/2026/automated-w2…	medium
Liang Qiu	Alignment research (MTS)	IC	—	—	alignment.anthropic.com/2026/automated-w2…	medium
Jan Hendrik Kirchner	Alignment research (MTS)	IC	—	—	alignment.anthropic.com/2026/automated-w2…	high
Henry Sleight	Alignment research (MTS)	IC	—	—	alignment.anthropic.com/2026/ai-organizat…	high
Erik Jones	Alignment research scientist (MTS)	IC	—	—	alignment.anthropic.com/2026/ai-organizat…	high
Jascha Sohl-Dickstein	Research scientist (MTS)	IC	—	—	alignment.anthropic.com/2026/ai-organizat…	high
Siddarth Srinivasan	Alignment research (MTS)	IC	—	—	alignment.anthropic.com/2026/ai-organizat…	medium
Daniel Zhu	Alignment research (MTS)	IC	—	—	alignment.anthropic.com/2026/ai-organizat…	medium
Morgan Jane Matthews	Alignment research (MTS)	IC	—	—	alignment.anthropic.com/2026/ai-organizat…	medium
John Hughes	Alignment research (Fellow)	IC	—	—	alignment.anthropic.com/2025/alignment-fa…	medium
Abhay Sheshadri	Alignment research (Fellow)	IC	—	—	alignment.anthropic.com/2025/alignment-fa…	medium
Chloe Li	Alignment research (Fellow)	IC	—	—	alignment.anthropic.com/2026/msm	medium
Julian Michael	Alignment research (MTS)	IC	—	—	alignment.anthropic.com/2025/modifying-be…	medium
Esin Durmus	Societal Impacts research scientist (MTS)	IC	in/esin-durmus-5403b4137	—	in/esin-durmus-5403b4137	high
Niki Parmar	Research (MTS)	IC	in/nikiparmar	—	in/nikiparmar	high
Bryan McCann	Research (MTS)	IC	in/bmarcusmccann	—	in/bmarcusmccann	high
Nathan Frey	Research (MTS)	IC	in/ncfrey	—	in/ncfrey	high
Zachary Gleicher	Product / model (MTS)	IC	in/zachary-gleicher-88163360	—	in/zachary-gleicher-88163360	high
Chaoshuai Lyu	Engineer (MTS)	IC	in/matrush	—	in/matrush	high
Jordan Fisher	Technical staff (MTS)	IC	in/jordan-fisher-81145025	—	in/jordan-fisher-81145025	high
Daniel Xu	Technical staff (MTS)	IC	in/xudaniel11	—	in/xudaniel11	high
Joel Weinberger	Security engineer (MTS)	IC	in/joelweinberger	—	in/joelweinberger	high
Matthew Roknich	Technical staff (MTS)	IC	in/mroknich	—	in/mroknich	high
Nick Lewis	Technical staff (MTS)	IC	in/nicklewis5189	—	in/nicklewis5189	high
Hakeem Angulu	Technical staff (MTS)	IC	in/hangulu	—	in/hangulu	high
Drew Bent	Education / technical staff	IC	in/drewbent	—	in/drewbent	high
Zach Merritt	Technical staff (MTS)	IC	in/zach-merritt-54904066	—	in/zach-merritt-54904066	high
Ethan Wong	Technical staff (MTS)	IC	in/ethan-wong-2b3ba181	—	in/ethan-wong-2b3ba181	high
Effy Zhang	Technical staff / product	IC	in/effyz	—	in/effyz	high
Emily Brodsky	Technical staff (MTS)	IC	in/emilysbrodsky	—	in/emilysbrodsky	high
Stephanie Pang	Technical staff / product	IC	in/stephanie-pang	—	in/stephanie-pang	medium
Hannah Pritchett	Technical staff (MTS)	IC	in/hannah-pritchett-261b0a74	—	in/hannah-pritchett-261b0a74	high
Evan Cox	Technical staff (MTS)	IC	in/evan-cox-325928b	—	in/evan-cox-325928b	high
Jessica Yan	Technical staff / product	IC	in/yan-jessica	—	in/yan-jessica	medium
Prithvi R.	Technical staff (MTS)	IC	in/prithvi72	—	in/prithvi72	medium
Fiona Fung	Technical staff / product	IC	in/fionafung	—	in/fionafung	medium
Courtney Barno	Technical staff	IC	in/courtney-barno-63a1635a	—	in/courtney-barno-63a1635a	medium
Krzysztof Rossowski-Kowalczyk	Engineer (MTS)	IC	in/kowaalczyk	—	in/kowaalczyk	high
Natasha Darcy Souza	Technical staff	IC	in/natasha-darcy-souza-63806217	—	in/natasha-darcy-souza-63806217	medium
Julian Schrittwieser	Research scientist (MTS), ex-DeepMind	IC	—	@Mononofu (X)	theoutpost.ai/news-story/prominent-ai-res…	high
Arthur Conmy	Alignment research scientist (MTS), ex-DeepMind	IC	—	@ArthurConmy (X)	digg.com/ai/1lsroor0	high
Jonas Adler	Research scientist (MTS), ex-Google DeepMind	IC	—	—	digg.com/tech/ih2kgudx	medium
Alexander Pritzel	Research scientist (MTS), ex-Google DeepMind	IC	—	—	digg.com/tech/ih2kgudx	medium
Diederik (Durk) Kingma	Research scientist (MTS), ex-OpenAI/Google	IC	—	@dpkingma (X)	capacitymedia.com/article/anthropic-openai	medium
Sam Blackshear	Security research (defensive), ex-Mysten Labs	IC	—	—	crowdfundinsider.com/2026/08/295272-myste…	medium
Jeremy Im	Member of Technical Staff	IC	—	—	clay.earth/profile/jeremy-im	medium
Dario Amodei	Co-founder & CEO	Leadership	—	@DarioAmodei (X)	anthropic.com/news/reed-hastings	high
Daniela Amodei	Co-founder & President	Leadership	in/daniela-amodei-790bb22a	—	in/daniela-amodei-790bb22a	high
Tom Brown	Co-founder	Leadership	in/nottombrown	—	in/nottombrown	high
Sam McCandlish	Co-founder & CTO	Leadership	in/sam-mccandlish	—	in/sam-mccandlish	high
Benjamin Mann	Co-founder	Leadership	in/benjamin-mann	—	in/benjamin-mann	high
Mike Krieger	Chief Product Officer	Leadership	in/mikekrieger	—	in/mikekrieger	high
Jan Leike	Alignment Science co-lead	Leadership	—	@janleike (X)	alignment.anthropic.com/2026/automated-w2…	high
Boris Cherny	Claude Code lead / MTS	Leadership	in/bcherny	—	in/bcherny	high
Robert Mahari	Head of Claude for Legal	Leadership	—	—	artificiallawyer.com/2026/08/07/anthropic…	high
Mariano-Florentino (Tino) Cuéllar	Chief Global Affairs Officer	Leadership	—	—	anthropic.com/news/reed-hastings	high
Kate Jensen	Head of Revenue / CRO	Leadership	in/kateearle	—	in/kateearle	medium
Eric Boyd	Product / engineering leadership (ex-Microsoft AI)	Leadership	in/emboyd	—	in/emboyd	medium
Mio Soda	Communications Lead, Japan & Korea	Leadership	in/mio-soda-b6a452b	—	in/mio-soda-b6a452b	high
Sham Parmar	Data-center supply chain lead (power & cooling)	Leadership	—	—	datacenterdynamics.com/en/news/metas-sham…	medium

Caveats & departures excluded (9)

Excluded fabricated/satirical "hires": A large, coordinated wave of low-quality/AI-generated news sites claimed Andrej Karpathy joined Anthropic's pretraining team (May 2026) — this is not credible (Karpathy runs Eureka Labs) and was excluded. Similar dubious clusters claimed John Jumper (Nobel laureate) left Google DeepMind for Anthropic; sourcing was fabricated-looking (memeburn, awesomeagents, etc.), so he was excluded pending a primary source.
Board vs. employee: Reed Hastings (May 2025) and other board additions were excluded — board directors are not employees. Mariano-Florentino Cuéllar and other named C-suite officers are included as employees.
Anthropic Fellows (John Hughes, Abhay Sheshadri, Chloe Li, possibly Jiaxin Wen) are funded external fellows embedded on Anthropic research — real current affiliation to the work, but not permanent staff; marked medium.
Julian Michael and some external co-authors on alignment posts may be collaborators (e.g., ex-Scale/NYU) rather than full-time Anthropic; marked medium.
LinkedIn-only rows were included when the profile title read "— Anthropic" in the indexed result; exact team/IC-vs-support role is inferred and some (Effy Zhang, Fiona Fung, Courtney Barno, Jessica Yan, Stephanie Pang, Natasha Darcy Souza) may be product/ops rather than technical staff — marked medium where role was unclear.
Samuel Marks: the "smarksnyc / FJC" LinkedIn result is a different person; no canonical LinkedIn recorded for the Anthropic alignment researcher (X handle @saprmarks instead).
Recent lateral hires from DeepMind (Julian Schrittwieser, Arthur Conmy, Jonas Adler, Alexander Pritzel) and OpenAI (Durk Kingma) are 2025–26 and well-sourced except Adler/Pritzel/Kingma which rest on aggregator coverage (medium).
Most IC rows derive from 2025–26 paper bylines on Anthropic's own domains (transformer-circuits.pub, alignment.anthropic.com), which is strong evidence of current employment but does not itself distinguish level or exact title; "MTS" is applied as Anthropic's standard IC title.
Team leads who remain hands-on researchers (Josh Batson, Sam Bowman, Ethan Perez, Evan Hubinger) are marked IC rather than Leadership.

Meta Superintelligence Labs (111)

Name	Role/title	Level	LinkedIn	Backup	Evidence	Confidence
Alexandr Wang	Chief AI Officer, head of MSL (leads TBD Lab)	Leadership	in/alexandrwang	x.com/alexandr_wang	nile1.com/en/2026/07/29/meta-appoints-sca…	high
Nat Friedman	Co-lead; heads Products & Applied Research	Leadership	—	nat.org	en.wikipedia.org/wiki/Meta_Superintellige…	high
Daniel Gross	Leadership — AI products / compute & infrastructure strategy	Leadership	—	—	grokipedia.com/page/meta_superintelligenc…	high
Shengjia Zhao	Chief Scientist, MSL (ex-OpenAI, ChatGPT/GPT-4 co-creator)	Leadership	in/shengjia-zhao	—	economictimes.indiatimes.com/news/interna…	high
Aparna Ramani	VP Engineering, leads MSL Infra	Leadership	in/aparnaramani	—	en.wikipedia.org/wiki/Meta_Superintellige…	high
Robert (Rob) Fergus	Head of FAIR (research arm within MSL)	Leadership	—	—	grokipedia.com/page/meta_superintelligenc…	high
Amir Frenkel	VP, MSL Infra / strategic MSL initiatives	Leadership	—	—	capitalbrief.com/briefing/meta-splits-ai-…	high
Ahmad Al-Dahle	Strategic MSL initiatives (ex-head of GenAI/Llama)	Leadership	—	—	capitalbrief.com/briefing/meta-splits-ai-…	medium
Dawn Song	VP of AI Research (joined with Virtue AI team)	Leadership	in/dawn-song-51586033	—	linkedin.com/posts/dawn-song-51586033_met…	high
Summer Yue	Director of Alignment (ex-Scale AI/DeepMind)	Leadership	—	—	linkedin.com/pulse/automation-without-con…	high
Nikhila Ravi	AI Research Director, MSL Media Research	Leadership	in/nikhilaravi	—	in/nikhilaravi	high
Maher Saba	Leads applied AI engineering (moved from Reality Labs)	Leadership	—	—	lilting.ch/en/articles/meta-muse-spark-su…	medium
Santosh Janardhan	Head of Infrastructure supporting MSL	Leadership	—	—	builtin.com/artificial-intelligence/meta-…	medium
Joseph Spisak	Product Director, MSL	Leadership	—	—	linkedin.com/posts/businessinsider_a-meta…	high
Hugo Barra	Dreamer co-founder, joined via acqui-hire (AI agents/products)	Leadership	—	—	newsbreak.com/winbuzzer-com-302470011/455…	high
David Singleton	Dreamer co-founder & CEO (ex-Stripe CTO), joined via acqui-hire	Leadership	—	—	newsbreak.com/winbuzzer-com-302470011/455…	high
Nicholas Jitkoff	Dreamer chief design officer, joined via acqui-hire	Leadership	—	—	newsbreak.com/winbuzzer-com-302470011/455…	high
Trapit Bansal	Researcher, TBD Lab (RL on chain-of-thought, o-series co-creator; ex-OpenAI)	IC	in/trapit-bansal-646a3451	—	grokipedia.com/page/meta_superintelligenc…	high
Hongyu Ren	Researcher (GPT-4o/o1-mini/o3-mini co-creator; led OpenAI post-training group)	IC	—	—	grokipedia.com/page/meta_superintelligenc…	high
Shuchao Bi	Researcher (GPT-4o voice mode co-creator; multimodal post-training; ex-OpenAI)	IC	—	—	grokipedia.com/page/meta_superintelligenc…	high
Jiahui Yu	Researcher (o3/o4-mini/GPT-4.1 co-creator; led OpenAI perception team)	IC	in/jhyuxm	—	grokipedia.com/page/meta_superintelligenc…	high
Ji Lin	Researcher (o3/o4-mini, GPT-4o/4.1/4.5, Operator reasoning stack; ex-OpenAI)	IC	in/ji-lin-1552bba7	—	grokipedia.com/page/meta_superintelligenc…	high
Huiwen Chang	Researcher (GPT-4o image generation co-creator; MaskGIT/Muse inventor; ex-OpenAI)	IC	in/huiwen-chang-999962156	—	grokipedia.com/page/meta_superintelligenc…	high
Jack Rae	Researcher (Gemini pre-training tech lead; Gopher/Chinchilla; ex-GDM)	IC	—	—	grokipedia.com/page/meta_superintelligenc…	high
Pei Sun	Researcher (Gemini post-training/reasoning; Waymo perception; ex-GDM)	IC	—	—	grokipedia.com/page/meta_superintelligenc…	high
Joel Pobar	Inference engineering (ex-Anthropic)	IC	—	—	grokipedia.com/page/meta_superintelligenc…	high
Johan Schalkwyk	Voice/speech (ex-Google, Sesame/Maya tech lead)	IC	—	—	grokipedia.com/page/meta_superintelligenc…	high
Lucas Beyer	Vision researcher (ex-GDM Zurich, ViT)	IC	—	x.com/giffmana	ai.miraheze.org/wiki/META_Superintelligen…	high
Alexander Kolesnikov	Vision researcher (ex-GDM Zurich)	IC	—	—	ai.miraheze.org/wiki/META_Superintelligen…	high
Xiaohua Zhai	Vision researcher (ex-GDM Zurich)	IC	—	—	ai.miraheze.org/wiki/META_Superintelligen…	high
Jason Wei	Researcher (chain-of-thought, emergent abilities; ex-OpenAI/Google)	IC	—	x.com/_jasonwei	linkedin.com/pulse/ai-verifiers-rule-its-…	high
Hyung Won Chung	Researcher (ex-OpenAI, o1/Deep Research; joined with Jason Wei July 2025)	IC	in/hyung-won-chung-5801b9a4	—	iq.wiki/wiki/meta-superintelligence-team	high
Yang Song	Research Principal (diffusion/score-based models; ex-OpenAI)	IC	in/yang-song-machine-learning	—	wired.com/story/meta-poaches-openai-resea…	high
Denny Zhou	Researcher, TBD Lab (founded GDM Reasoning team; joined Feb 2026)	IC	in/denny-zhou-7695487	x.com/denny_zhou	pondero.ai/news/2026-06-30-google-deepmin…	high
Zhuohan Li	Inference/serving (vLLM co-creator; ex-OpenAI)	IC	—	x.com/zhuohan123	lzwjava.github.io/zhuohan-li-vllm-co-crea…	high
Lianmin Zheng	Inference (SGLang/lmsys co-founder; X bio "Inference @meta")	IC	in/lianmin-zheng-6266a8114	x.com/lm_zheng	digg.com/u/x/lm_zheng	medium
Zhiqing Sun	Researcher (ex-OpenAI)	IC	—	—	druckfin.com/en/articles/meta-turns-3000-…	medium
Matt Deitke	Researcher (multimodal agents; ex-Vercept/Allen Institute; reported ~$250M package)	IC	—	—	iq.wiki/wiki/meta-superintelligence-team	medium
Andrew Tulloch	Co-founder of Thinking Machines Lab; rejoined Meta Oct 2025 (ML systems/PyTorch)	IC	—	—	en.wikipedia.org/wiki/Thinking_Machines_L…	high
Joshua Gross	Founding engineer, ex-Thinking Machines Lab; leads engineering teams in MSL (joined Mar 2026)	IC	—	—	thenextweb.com/news/meta-thinking-machine…	high
Mark Jen	Founding member, ex-Thinking Machines Lab (joined 2026)	IC	—	—	mlq.ai/news/meta-recruits-fifth-founder-f…	high
Yinghai Lu	Founding member, ex-Thinking Machines Lab (joined 2026)	IC	—	—	mlq.ai/news/meta-recruits-fifth-founder-f…	high
Noah Shpak	Founding team member, ex-Thinking Machines Lab (joined 2026)	IC	—	—	timesofindia.indiatimes.com/technology/te…	medium
Christian Gibson	Founding team member, ex-Thinking Machines Lab (joined 2026)	IC	—	—	timesofindia.indiatimes.com/technology/te…	medium
Yuanzhi Li	Researcher (ex-DeepMind/CMU)	IC	—	—	iq.wiki/wiki/meta-superintelligence-team	medium
Anton Bakhtin	Researcher (Cicero/Diplomacy; ex-Anthropic)	IC	—	—	iq.wiki/wiki/meta-superintelligence-team	medium
Julian Michael	Alignment researcher (ex-NYU/Scale)	IC	—	—	iq.wiki/wiki/meta-superintelligence-team	medium
Tim Brooks	Researcher (video generation; ex-OpenAI Sora)	IC	—	—	crowdbyte.ai/topics/meta-unveils-first-ai…	medium
Thomas Mesnard	Research Scientist (ex-Google DeepMind, Gemma)	IC	—	—	refolk.ai/s/find-engineers-who-joined-met…	medium
Xiaolong Wang	Researcher, Meta Superintelligence Labs (per current LinkedIn)	IC	in/xiaolonw	—	in/xiaolonw	high
Mark Lee	AI scientist (ex-Apple foundation models)	IC	—	—	economictimes.indiatimes.com/news/interna…	medium
Tom Gunter	AI scientist (ex-Apple foundation models)	IC	—	—	economictimes.indiatimes.com/news/interna…	medium
Frank Chu	MSL Infra (ex-Apple, senior AI exec)	IC	—	—	outlookbusiness.com/artificial-intelligen…	medium
Yun Zhu	Researcher (ex-Apple)	IC	—	—	outlookbusiness.com/artificial-intelligen…	medium
Ke Yang	Researcher (ex-Apple, AKI/Siri search)	IC	—	—	builtin.com/artificial-intelligence/meta-…	medium
Bowen Zhang	Multimodal AI researcher (ex-Apple)	IC	—	—	the-decoder.com/some-meta-employees-fear-…	medium
Jian Zhang	Robotics researcher (ex-Apple)	IC	—	—	winbuzzer.com/2025/09/25/meta-doubles-dow…	medium
Mika Kimmins	Engineer (ex-Apple Siri)	IC	—	—	refolk.ai/s/find-engineers-who-joined-met…	medium
Hammad Syed	Voice AI (PlayAI co-founder, acqui-hire)	IC	—	—	semiconductorsinsight.com/meta-superintel…	medium
Mahmoud Felfel	Voice AI (PlayAI co-founder, acqui-hire)	IC	—	—	hindustantimes.com/world-news/us-news/met…	medium
Cosmo Du	Researcher (ex-Google DeepMind, Gemini)	IC	—	—	iq.wiki/wiki/meta-superintelligence-team	medium
Tianhe Yu	Researcher (ex-Google DeepMind)	IC	—	—	iq.wiki/wiki/meta-superintelligence-team	medium
Weiyue Wang	Researcher (ex-Google DeepMind)	IC	—	—	iq.wiki/wiki/meta-superintelligence-team	medium
Yuanzhong Xu	Researcher — model training systems (ex-Google DeepMind)	IC	—	—	b17news.com/meta-raids-google-deepmind-an…	medium
Mingyang Zhang	Researcher — LLM retrieval (ex-Google DeepMind)	IC	—	—	b17news.com/meta-raids-google-deepmind-an…	medium
Xinyun Chen	Researcher (ex-Google DeepMind, code reasoning)	IC	—	—	b17news.com/meta-raids-google-deepmind-an…	medium
Tong He	Researcher (ex-Google DeepMind)	IC	—	—	b17news.com/meta-raids-google-deepmind-an…	medium
Haotian (Ken) Tang	Research scientist (ex-DeepMind/MIT)	IC	—	—	iq.wiki/wiki/meta-superintelligence-team	medium
Qingqing Huang	Research scientist (ex-Google/TikTok)	IC	—	—	iq.wiki/wiki/meta-superintelligence-team	medium
Pingchuan Ma	Research scientist (ex-OpenAI)	IC	—	—	iq.wiki/wiki/meta-superintelligence-team	medium
Bowen Cheng	Researcher (ex-Tesla/OpenAI)	IC	—	—	iq.wiki/wiki/meta-superintelligence-team	medium
Yinghao Li	Researcher (ex-OpenAI)	IC	—	—	iq.wiki/wiki/meta-superintelligence-team	medium
Chengxu Zhuang	Research scientist (ex-OpenAI/MIT)	IC	—	—	iq.wiki/wiki/meta-superintelligence-team	medium
Chunyuan Li	Research scientist (ex-Microsoft Research/xAI)	IC	—	—	iq.wiki/wiki/meta-superintelligence-team	medium
Rui Hou	Research scientist (ex-xAI/Meta)	IC	—	—	iq.wiki/wiki/meta-superintelligence-team	medium
Chenxi Liu	Research scientist (ex-Waymo/DeepMind)	IC	—	—	iq.wiki/wiki/meta-superintelligence-team	medium
Lu Liu	Research scientist (ex-Google/OpenAI)	IC	in/lu-liu-2b5b93187	—	iq.wiki/wiki/meta-superintelligence-team	medium
Michael Zhang	Research scientist (ex-DeepMind)	IC	—	—	iq.wiki/wiki/meta-superintelligence-team	medium
Zhishuai Zhang	Researcher (ex-Waymo/DeepMind)	IC	—	—	iq.wiki/wiki/meta-superintelligence-team	medium
Tao Zhu	Researcher (ex-DeepMind)	IC	—	—	iq.wiki/wiki/meta-superintelligence-team	medium
James Lee-Thorp	Researcher (ex-DeepMind)	IC	—	—	iq.wiki/wiki/meta-superintelligence-team	medium
Yu Zhang	Researcher (ex-Twitter/Dropbox/DeepMind)	IC	in/yu-zhang-821abb60	—	iq.wiki/wiki/meta-superintelligence-team	medium
Gabriel Ilharco	Researcher (ex-xAI)	IC	—	—	iq.wiki/wiki/meta-superintelligence-team	medium
Allan Jabri	Researcher (ex-OpenAI)	IC	—	—	iq.wiki/wiki/meta-superintelligence-team	medium
Chen Xing	Safety & evaluations (ex-Scale AI)	IC	—	—	b17news.com/meta-raids-google-deepmind-an…	medium
Ziwen Han	Safety & evaluations (ex-Scale AI)	IC	—	—	b17news.com/meta-raids-google-deepmind-an…	medium
Nathaniel Li	Safety & evaluations (ex-Scale AI)	IC	—	—	b17news.com/meta-raids-google-deepmind-an…	medium
Lifeng Jin	Safety & evaluations (ex-Scale AI)	IC	—	—	b17news.com/meta-raids-google-deepmind-an…	medium
Felix Binder	Safety & evaluations (ex-Scale AI)	IC	—	—	b17news.com/meta-raids-google-deepmind-an…	medium
Alexander Fabbri	Safety & evaluations (ex-Scale AI)	IC	—	—	b17news.com/meta-raids-google-deepmind-an…	medium
Annie Hu	Operations/technical staff (ex-Scale AI)	IC	—	—	reddit.com/r/singularity/comments/1m3zn2l…	medium
Linda Gong	Technical staff (ex-Two Sigma/Anrok)	IC	—	—	reddit.com/r/singularity/comments/1m3zn2l…	medium
Jon Wilfong	Technical staff (ex-E&A/Mulesoft)	IC	—	—	iq.wiki/wiki/meta-superintelligence-team	medium
Peter Hoeschele	Data center planning (ex-OpenAI Stargate)	IC	—	—	sudonull.com/meta-poaches-experts-from-st…	medium
Shamez Hemani	Compute resource strategy & business development (ex-OpenAI)	IC	—	—	sudonull.com/meta-poaches-experts-from-st…	medium
Anuj Saharan	Compute supply chains (ex-OpenAI)	IC	—	—	sudonull.com/meta-poaches-experts-from-st…	medium
Bo Li	AI security researcher (Virtue AI co-founder, joined with Dawn Song)	IC	—	—	techtimes.com/articles/319219/20260628/go…	medium
Sanmi Koyejo	AI security researcher (Virtue AI co-founder, joined with Dawn Song)	IC	—	—	techtimes.com/articles/319219/20260628/go…	medium
Rui Xu	Hardware team lead (ex-Dreamer)	IC	—	—	winbuzzer.com/2026/04/04/meta-superintell…	high
Matt Schlicht	Product (Moltbook co-founder, acqui-hire 2026)	IC	—	—	linkedin.com/pulse/why-meta-acquired-molt…	high
Ben Parr	Product (Moltbook co-founder, acqui-hire 2026)	IC	—	—	theoutpost.ai/news-story/meta-hires-dream…	high
Josh Siegel	Product (Gizmo CEO, team acqui-hired from Snap orbit, Mar 2026)	IC	—	—	aol.com/articles/meta-hires-team-behind-g…	medium
Daniel Amitay	Engineering (Gizmo CTO, Mar 2026)	IC	—	—	aol.com/articles/meta-hires-team-behind-g…	medium
Rudd Fawcett	Engineer (Gizmo, Mar 2026)	IC	—	—	aol.com/articles/meta-hires-team-behind-g…	medium
Brandon Francis	Engineer (Gizmo, Mar 2026)	IC	—	—	aol.com/articles/meta-hires-team-behind-g…	medium
Dan Siroker	Limitless co-founder (acqui-hire)	IC	—	—	grokipedia.com/page/meta_superintelligenc…	medium
Ryan Cairns	Hardware/Horizon OS lead under MSL hardware push	IC	—	—	winbuzzer.com/2026/04/04/meta-superintell…	medium
Bing Liu	AI Research (LinkedIn lists MSL)	IC	in/vbingliu	—	in/vbingliu	medium
Justin Zhao	AI researcher (LinkedIn lists MSL)	IC	in/justin-zhao	—	in/justin-zhao	medium
Qi Qi	Research scientist (LinkedIn lists MSL)	IC	in/qi-qi-6b875414a	—	in/qi-qi-6b875414a	medium
Shoubhik Debnath	Research Engineer, FAIR/MSL	IC	in/shoubhik-debnath-41268570	—	in/shoubhik-debnath-41268570	medium

Caveats & departures excluded (31)

Avi Verma — boomeranged back to OpenAI within ~2 months (Aug 2025); The Verge reports he may never have formally started. (wired.com/story/researchers-leave-meta-superintelligence-labs-openai)
Ethan Knight — returned to OpenAI within weeks/months of joining (Aug 2025).
Rishabh Agarwal — resigned ~5 months after joining (Aug 2025); went to Periodic Labs.
Ruoming Pang — reported ~$200M hire from Apple; jumped to OpenAI Feb 2026 after ~7 months. (reportwire.org/ruoming-pang-metas-200m-superintelligence-hire-jumps-to-openai-after-just-7-months)
Pengchuan Zhang — hired back by OpenAI Feb 24, 2026.
Chaya Nayak — left for OpenAI Aug 2025.
Angela Fan — left for OpenAI Aug 2025.
Afroz Mohiuddin — left for OpenAI Aug 2025.
Bert Maher — PyTorch/Triton engineer, left for Anthropic (~Aug 2025-Feb 2026 reporting).
Tony Liu — left (PyTorch GPU systems), Aug-Sep 2025.
Chi-Hao Wu — left for Memories.ai, Aug 2025.
Aram Markosyan — left, Aug-Sep 2025.
Rohan Varma — left soon after the Aug 2025 reorganization.
Ruben Mayer-Hirschfeld — left after ~2 months (Sep 2025).
Aurko Roy — left for Microsoft AI (Jul 2025 reporting; never fully landed).
Mat Velloso — led developer platform product; left ~Feb 2026.
Russ Salakhutdinov — VP of GenAI Research; left ~Feb 2026.
Loredana Crisan — left for Figma, Sep 2025.
Emily Dalton Smith — Meta AI executive, departed Jun 2026, two months into the internal AI overhaul.
Prakshal Jain — left Jul 2026 to found an AI startup (Mitosis Labs).
Yann LeCun — left Meta Nov 2025 to found AMI Labs (was Chief AI Scientist/FAIR, adjacent to MSL). Excluded.
Soumith Chintala — PyTorch lead, left Meta Nov 2025 for Thinking Machines Lab. Was PyTorch org, N/A for MSL census anyway.
Yuan Tian — left Oct 2025 (Recursive Superintelligence).
Julia Kempe — FAIR researcher, reported May 2026 to be leaving for the Ellison Institute of Technology.
Andrew Brown — left for AMI Labs (LeCun's startup), May 2026.
Boomerangs to Thinking Machines Lab (Meta researchers, mostly FAIR, not necessarily MSL hires): Weiyao Wang, Andrea Madotto, Kenneth Li, James Sun, Piotr Dollár (Dec 2025-Apr 2026 reporting).
Lianmin Zheng — conflicting signals: X bio says "Inference @meta" and LinkedIn title shows Meta, but a UCLA faculty page lists him as Assistant Professor starting Jul 1, 2026, and one Feb 2026 article claims Mistral AI hired an "SGLang creator" as chief scientist (likely misattribution). Kept at medium confidence.
Jiahui Yu's LinkedIn still shows OpenAI in the search index title (stale crawl); press coverage through 2026 places him at MSL. Denny Zhou's LinkedIn similarly still shows Google DeepMind (he moved Feb 2026 per multiple Jun 2026 reports).
The ~40 "list of 44" long-tail names (Scale AI/DeepMind/OpenAI research scientists) are marked medium: they appear on the leaked Jul 2025 roster and 2026 wiki snapshots but lack individual 2026 re-confirmation. Given MSL's documented ~600-person layoff (Oct 2025) and steady attrition, some may no longer be there.
Mark Zuckerberg, Susan Li, Andrew Bosworth appear in MSL coverage but are Meta corporate officers, not MSL members — excluded. Connor Hayes (Threads) excluded. "Shah" (took over AI products at MSL from Reality Labs, likely Vishal Shah) excluded because sources only give the surname. Mimansa Jaiswal excluded — her only recent mention is in an Oct 2025 layoffs article, status ambiguous.
MSL sub-team structure as of the Aug 2025 reorg: TBD Lab (Wang), FAIR (Fergus), Products & Applied Research (Friedman), MSL Infra (Ramani). 2026 additions: hardware team, alignment group (Yue), AI security (Song/Virtue AI).

Mistral AI (124)

Name	Role/title	Level	LinkedIn	Backup	Evidence	Confidence
Arthur Mensch	Co-founder & CEO	Leadership	—	en.wikipedia.org/wiki/Arthur_Mensch	techcrunch.com/2026/07/04/what-is-mistral…	high
Guillaume Lample	Co-founder & Chief Scientist	Leadership	in/guillaume-lample-7821095b	—	techcrunch.com/2025/12/02/mistral-closes-…	high
Timothée Lacroix	Co-founder & CTO	Leadership	in/timothee-lacroix-59517977	—	theorg.com/org/mistral-ai	high
Marjorie Janiewicz	Chief Revenue Officer (prev. US GM)	Leadership	in/marjorietoucas	—	linkedin.com/posts/hgcapital_ai-is-a-tran…	high
Johan Bergqvist	Chief Financial Officer (appointed 2025)	Leadership	—	—	techcrunch.com/2026/07/04/what-is-mistral…	high
Brian Hall	Chief Marketing Officer (appointed 2025)	Leadership	—	—	techcrunch.com/2026/07/04/what-is-mistral…	high
Kamal Brar	SVP Partners & Alliances (appointed 2025)	Leadership	—	—	techcrunch.com/2026/07/04/what-is-mistral…	high
Audrey Herblin-Stoop	VP Global Public Affairs & Communications	Leadership	—	—	theorg.com/org/mistral-ai	high
Blanche Savary de Beauregard	General Counsel & Secretary of the Board	Leadership	—	—	theorg.com/org/mistral-ai	high
Justus Murke	Chief of Staff to the CEO	Leadership	—	—	theorg.com/org/mistral-ai	high
Etienne Metzger	Head of Talent Acquisition	Leadership	—	—	theorg.com/org/mistral-ai	high
Caroline Danziger Feldman	VP Finance	Leadership	—	—	theorg.com/org/mistral-ai	high
Delphine Cai	Head of Corporate Development	Leadership	—	—	theorg.com/org/mistral-ai	high
Cristi Baron	Head of Growth Strategy	Leadership	—	—	theorg.com/org/mistral-ai	high
Margaret Jennings	Head of Product / leads model behavior post-training	Leadership	—	producthunt.com/@mjmj1oo/activity	asl.org/about/news-publications-and-speak…	high
Zach Krasner	Head of Product (product design)	Leadership	—	—	thebigbyte.substack.com/p/inside-the-lead…	high
Charles de Fréminville	People / HR lead	Leadership	—	—	thebigbyte.substack.com/p/inside-the-lead…	high
Jon Bock	Head of Marketing	Leadership	—	—	thebigbyte.substack.com/p/inside-the-lead…	high
Barry Conklin	Enterprise sales leadership	Leadership	—	—	thebigbyte.substack.com/p/inside-the-lead…	high
Sophia Yang	Head of Developer Relations	Leadership	in/sophiamyang	—	linkedin.com/posts/sophiamyang_mistral-ai…	high
Mert Ünsal	AI Scientist (post-training), Palo Alto office; ex-Browser Use	IC	in/mertu2002	mertunsall.github.io	linkedin.com/posts/mertu2002_life-update-…	high
Zhenlin Xu	AI Scientist	IC	in/zhenlinxu	—	in/zhenlinxu	high
Abhinav Rastogi	Research Scientist/Engineer (Magistral core contributor)	IC	—	—	arxiv.org/html/2506.10910v1	medium
Albert Q. Jiang	Research Scientist (Magistral core contributor)	IC	—	—	arxiv.org/html/2506.10910v1	medium
Andy Lo	Research Scientist/Engineer (Magistral core + Voxtral contributor)	IC	—	—	arxiv.org/html/2506.10910v1	medium
Gabrielle Berrada	Research Scientist/Engineer (Magistral core contributor)	IC	—	—	arxiv.org/html/2506.10910v1	medium
Jason Rute	Research Scientist — AI for math/reasoning, ex-IBM Research (Magistral core contributor)	IC	—	—	arxiv.org/html/2506.10910v1	medium
Joep Barmentlo	Research Scientist/Engineer (Magistral core contributor)	IC	—	—	arxiv.org/html/2506.10910v1	medium
Karmesh Yadav	Research Scientist/Engineer (Magistral core contributor)	IC	—	—	arxiv.org/html/2506.10910v1	medium
Kartik Khandelwal	Research Scientist/Engineer (Magistral core contributor)	IC	—	—	arxiv.org/html/2506.10910v1	medium
Khyathi Raghavi Chandu	Research Scientist (Magistral core + Voxtral contributor)	IC	—	—	arxiv.org/html/2506.10910v1	medium
Léonard Blier	Research Scientist (Magistral core contributor)	IC	—	—	arxiv.org/html/2506.10910v1	medium
Lucile Saulnier	Research Scientist/Engineer, early team (Magistral core contributor)	IC	—	—	arxiv.org/html/2506.10910v1	medium
Matthieu Dinot	Research Scientist/Engineer (Magistral core contributor)	IC	—	—	arxiv.org/html/2506.10910v1	medium
Maxime Darrin	Research Scientist (Magistral core contributor)	IC	—	—	arxiv.org/html/2506.10910v1	medium
Neha Gupta	Research Scientist (Magistral core contributor)	IC	—	—	arxiv.org/html/2506.10910v1	medium
Roman Soletskyi	Research Scientist — math/reasoning (Magistral core contributor)	IC	—	—	arxiv.org/html/2506.10910v1	medium
Sagar Vaze	Research Scientist (Magistral core contributor)	IC	—	—	arxiv.org/html/2506.10910v1	medium
Teven Le Scao	Research Scientist, ex-Hugging Face (Magistral core contributor)	IC	—	—	arxiv.org/html/2506.10910v1	medium
Yihan Wang	Research Scientist (Magistral core + Voxtral contributor)	IC	—	—	arxiv.org/html/2506.10910v1	medium
Adam Yang	Research Scientist/Engineer (Magistral + Voxtral contributor)	IC	—	—	arxiv.org/html/2506.10910v1	medium
Alexander H. Liu	Research Scientist — audio/speech (Voxtral lead group)	IC	—	—	arxiv.org/html/2507.13264v1	medium
Alexandre Sablayrolles	Research Scientist, early team ex-Meta (Magistral + Voxtral contributor)	IC	—	—	arxiv.org/html/2506.10910v1	medium
Amélie Héliou	Research Scientist (Magistral + Voxtral contributor)	IC	—	—	arxiv.org/html/2506.10910v1	medium
Amélie Martin	Research Scientist/Engineer (Magistral + Voxtral contributor)	IC	—	—	arxiv.org/html/2506.10910v1	medium
Andy Ehrenberg	Research Scientist/Engineer (Magistral + Voxtral contributor)	IC	—	—	arxiv.org/html/2506.10910v1	medium
Anmol Agarwal	Research Scientist/Engineer (Magistral + Voxtral contributor)	IC	—	—	arxiv.org/html/2506.10910v1	medium
Antoine Roux	Research Scientist/Engineer (Magistral + Voxtral contributor)	IC	—	—	arxiv.org/html/2506.10910v1	medium
Arthur Darcet	Engineer (Magistral + Voxtral contributor)	IC	—	—	arxiv.org/html/2506.10910v1	medium
Baptiste Bout	Research Scientist/Engineer (Magistral + Voxtral contributor)	IC	—	—	arxiv.org/html/2506.10910v1	medium
Baptiste Rozière	Research Scientist — code models, ex-Meta (Magistral + Voxtral contributor)	IC	—	—	arxiv.org/html/2506.10910v1	medium
Baudouin De Monicault	Research Scientist/Engineer (Magistral + Voxtral contributor)	IC	—	—	arxiv.org/html/2506.10910v1	medium
Chris Bamford	Research Engineer, early team (Magistral + Voxtral contributor)	IC	—	—	arxiv.org/html/2506.10910v1	medium
Christian Wallenwein	Research Scientist/Engineer (Magistral + Voxtral contributor)	IC	—	—	arxiv.org/html/2506.10910v1	medium
Christophe Renaudin	Research Scientist/Engineer (Magistral + Voxtral contributor)	IC	—	—	arxiv.org/html/2506.10910v1	medium
Clémence Lanfranchi	Research Scientist/Engineer (Magistral + Voxtral contributor)	IC	—	—	arxiv.org/html/2506.10910v1	medium
Darius Dabert	Research Scientist/Engineer (Magistral + Voxtral contributor)	IC	—	—	arxiv.org/html/2506.10910v1	medium
Devon Mizelle	Engineer (Magistral + Voxtral contributor)	IC	—	—	arxiv.org/html/2506.10910v1	medium
Diego de las Casas	Research Engineer, early team ex-DeepMind (Magistral + Voxtral contributor)	IC	—	—	arxiv.org/html/2506.10910v1	medium
Elliot Chane-Sane	Research Scientist (Magistral + Voxtral contributor)	IC	—	—	arxiv.org/html/2506.10910v1	medium
Emilien Fugier	Engineer (Magistral + Voxtral contributor)	IC	—	—	arxiv.org/html/2506.10910v1	medium
Emma Bou Hanna	Research Scientist/Engineer (Magistral + Voxtral contributor)	IC	—	—	arxiv.org/html/2506.10910v1	medium
Gauthier Delerce	Engineer (Magistral + Voxtral contributor)	IC	—	—	arxiv.org/html/2506.10910v1	medium
Gauthier Guinet	Research Scientist (Magistral + Voxtral contributor)	IC	—	—	arxiv.org/html/2506.10910v1	medium
Georgii Novikov	Research Scientist/Engineer (Magistral + Voxtral contributor)	IC	—	—	arxiv.org/html/2506.10910v1	medium
Guillaume Martin	Engineer (Magistral + Voxtral contributor)	IC	—	—	arxiv.org/html/2506.10910v1	medium
Himanshu Jaju	Research Engineer (Magistral + Voxtral contributor)	IC	—	—	arxiv.org/html/2506.10910v1	medium
Jan Ludziejewski	Research Scientist — pretraining, MoE & scaling laws (Magistral + Voxtral contributor)	IC	—	—	arxiv.org/html/2506.10910v1	medium
Jean-Hadrien Chabran	Research Scientist/Engineer (Magistral + Voxtral contributor)	IC	—	—	arxiv.org/html/2506.10910v1	medium
Jean-Malo Delignon	Research Scientist/Engineer (Magistral + Voxtral contributor)	IC	—	—	arxiv.org/html/2506.10910v1	medium
Joachim Studnia	Research Scientist/Engineer (Magistral + Voxtral contributor)	IC	—	—	arxiv.org/html/2506.10910v1	medium
Jonas Amar	Research Scientist/Engineer (Magistral + Voxtral contributor)	IC	—	—	arxiv.org/html/2506.10910v1	medium
Josselin Somerville Roberts	Research Scientist/Engineer (Magistral + Voxtral contributor)	IC	—	—	arxiv.org/html/2506.10910v1	medium
Julien Denize	Research Scientist (Magistral + Voxtral contributor)	IC	—	—	arxiv.org/html/2506.10910v1	medium
Karan Saxena	Research Scientist/Engineer (Magistral + Voxtral contributor)	IC	—	—	arxiv.org/html/2506.10910v1	medium
Kush Jain	Research Scientist/Engineer (Magistral + Voxtral contributor)	IC	—	—	arxiv.org/html/2506.10910v1	medium
Lingxiao Zhao	Research Scientist/Engineer (Magistral + Voxtral contributor)	IC	—	—	arxiv.org/html/2506.10910v1	medium
Louis Martin	Research Scientist, early team ex-Meta (Magistral + Voxtral contributor)	IC	—	—	arxiv.org/html/2506.10910v1	medium
Luyu Gao	Research Scientist (Magistral + Voxtral contributor)	IC	—	—	arxiv.org/html/2506.10910v1	medium
Lélio Renard Lavaud	Research Engineer, early team (Magistral + Voxtral contributor)	IC	—	—	arxiv.org/html/2506.10910v1	medium
Marie Pellat	Research Scientist, early team ex-Google (Magistral + Voxtral contributor)	IC	—	—	arxiv.org/html/2506.10910v1	medium
Mathilde Guillaumin	Research Scientist/Engineer (Magistral + Voxtral contributor)	IC	—	—	arxiv.org/html/2506.10910v1	medium
Mathis Felardos	Research Scientist/Engineer (Magistral + Voxtral contributor)	IC	—	—	arxiv.org/html/2506.10910v1	medium
Maximilian Augustin	Research Scientist (Magistral + Voxtral contributor)	IC	—	—	arxiv.org/html/2506.10910v1	medium
Mickaël Seznec	Research Engineer — inference/perf (Magistral + Voxtral contributor)	IC	—	—	arxiv.org/html/2506.10910v1	medium
Nikhil Raghuraman	Research Scientist/Engineer (Magistral + Voxtral contributor)	IC	—	—	arxiv.org/html/2506.10910v1	medium
Olivier Duchenne	Research Scientist (Magistral + Voxtral contributor)	IC	—	—	arxiv.org/html/2506.10910v1	medium
Patricia Wang	Research Scientist/Engineer (Magistral + Voxtral contributor)	IC	—	—	arxiv.org/html/2506.10910v1	medium
Patrick von Platen	Research Engineer — audio/speech, ex-Hugging Face (Voxtral lead group)	IC	—	—	arxiv.org/html/2507.13264v1	medium
Patryk Saffer	Research Scientist/Engineer (Magistral + Voxtral contributor)	IC	—	—	arxiv.org/html/2506.10910v1	medium
Paul Jacob	Research Scientist/Engineer (Magistral + Voxtral contributor)	IC	—	—	arxiv.org/html/2506.10910v1	medium
Paul Wambergue	Research Scientist/Engineer (Magistral + Voxtral contributor)	IC	—	—	arxiv.org/html/2506.10910v1	medium
Paula Kurylowicz	Research Scientist/Engineer (Magistral + Voxtral contributor)	IC	—	—	arxiv.org/html/2506.10910v1	medium
Pavankumar Reddy Muddireddy	Research Scientist — speech (Voxtral lead group)	IC	—	—	arxiv.org/html/2507.13264v1	medium
Philomène Chagniot	Research Scientist/Engineer (Magistral + Voxtral contributor)	IC	—	—	arxiv.org/html/2506.10910v1	medium
Pierre Stock	Research Scientist, early team ex-Meta (Magistral + Voxtral contributor)	IC	—	—	arxiv.org/html/2506.10910v1	medium
Pravesh Agrawal	Research Scientist/Engineer (Magistral + Voxtral contributor)	IC	—	—	arxiv.org/html/2506.10910v1	medium
Romain Sauvestre	Research Scientist (Magistral + Voxtral contributor)	IC	—	—	arxiv.org/html/2506.10910v1	medium
Rémi Delacourt	Research Scientist/Engineer (Magistral + Voxtral contributor)	IC	—	—	arxiv.org/html/2506.10910v1	medium
Sanchit Gandhi	Research Engineer — audio/speech, ex-Hugging Face (Voxtral lead group)	IC	—	—	arxiv.org/html/2507.13264v1	medium
Sandeep Subramanian	Research Scientist (Magistral + Voxtral contributor)	IC	—	—	arxiv.org/html/2506.10910v1	medium
Shashwat Dalal	Research Scientist/Engineer (Magistral + Voxtral contributor)	IC	—	—	arxiv.org/html/2506.10910v1	medium
Siddharth Gandhi	Research Scientist/Engineer (Magistral + Voxtral contributor)	IC	—	—	arxiv.org/html/2506.10910v1	medium
Soham Ghosh	Research Scientist — multimodal/audio (Voxtral lead group)	IC	—	—	arxiv.org/html/2507.13264v1	medium
Srijan Mishra	Research Scientist/Engineer (Voxtral lead group)	IC	—	—	arxiv.org/html/2507.13264v1	medium
Sumukh Aithal	Research Scientist/Engineer (Magistral + Voxtral contributor)	IC	—	—	arxiv.org/html/2506.10910v1	medium
Szymon Antoniak	Research Scientist — MoE (Magistral + Voxtral contributor)	IC	—	—	arxiv.org/html/2506.10910v1	medium
Thibault Schueller	Engineer (Magistral + Voxtral contributor)	IC	—	—	arxiv.org/html/2506.10910v1	medium
Thibaut Lavril	Research Scientist, early team ex-Meta (Magistral + Voxtral contributor)	IC	—	—	arxiv.org/html/2506.10910v1	medium
Thomas Robert	Research Scientist/Engineer (Magistral + Voxtral contributor)	IC	—	—	arxiv.org/html/2506.10910v1	medium
Thomas Wang	Research Scientist (Magistral + Voxtral contributor)	IC	—	—	arxiv.org/html/2506.10910v1	medium
Valeriia Nemychnikova	Research Scientist/Engineer (Magistral + Voxtral contributor)	IC	—	—	arxiv.org/html/2506.10910v1	medium
Victor Paltz	Research Scientist/Engineer (Magistral + Voxtral contributor)	IC	—	—	arxiv.org/html/2506.10910v1	medium
Virgile Richard	Research Scientist/Engineer (Magistral + Voxtral contributor)	IC	—	—	arxiv.org/html/2506.10910v1	medium
Wen-Ding Li	Research Scientist — code/reasoning (Magistral + Voxtral contributor)	IC	—	—	arxiv.org/html/2506.10910v1	medium
William Marshall	Research Scientist/Engineer (Magistral + Voxtral contributor)	IC	—	—	arxiv.org/html/2506.10910v1	medium
Xuanyu Zhang	Research Scientist/Engineer (Magistral + Voxtral contributor)	IC	—	—	arxiv.org/html/2506.10910v1	medium
Yunhao Tang	Research Scientist — RL (Magistral + Voxtral contributor)	IC	—	—	arxiv.org/html/2506.10910v1	medium
Clément Denoix	Research Scientist/Engineer — speech (Voxtral lead group)	IC	—	—	arxiv.org/html/2507.13264v1	medium
Corentin Barreau	Research Scientist/Engineer — speech (Voxtral lead group)	IC	—	—	arxiv.org/html/2507.13264v1	medium
Thomas Foubert	Research Scientist/Engineer — speech (Voxtral lead group)	IC	—	—	arxiv.org/html/2507.13264v1	medium
Jessica Chudnovsky	Research Scientist/Engineer (Voxtral contributor)	IC	—	—	arxiv.org/html/2507.13264v1	medium
Saurabh Garg	Research Scientist (Voxtral contributor)	IC	—	—	arxiv.org/html/2507.13264v1	medium
Tom Bewley	Research Scientist (Voxtral contributor)	IC	—	—	arxiv.org/html/2507.13264v1	medium

Caveats & departures excluded (7)

Row count and split: 124 rows — 20 Leadership, 104 IC. The IC bulk (102 names) comes from the Magistral (arXiv 2506.10910, June 2025) and Voxtral (arXiv 2507.13264, July 2025) tech-report contributor lists — the two most comprehensive public rosters. "Core contributor" vs "contributor" grouping from the Magistral paper is noted in the Role column; exact individual titles for most paper authors are not publicly stated, so "Research Scientist/Engineer" is an inference from the contributor role.
Confidence semantics: rows marked medium rest on mid-2025 paper authorship only. Mistral grew from ~350 (2025) to ~1,000 employees (May 2026, per Mensch's Assembly testimony and the AI NOW Summit), so most paper authors are very likely still there, but individual 2026 confirmation was only feasible for a handful (marked high).
Excluded known departures: Devendra Singh Chaplot appears on the Voxtral author list but left Mistral (founding team of Thinking Machines Lab, then xAI/SpaceX in March 2026, now also Sarvam AI advisor) — excluded. Théophile Gervet left (~Dec 2024) to co-found Genesis AI/Genesis Robotics. Cédric O is a non-executive co-founder/adviser (not an employee) now launching an edtech startup — excluded. Co-founding advisers Charles Gorintin and Jean-Charles Samuelian-Werve (Alan) are advisers/board, not employees — excluded.
Title staleness risks: Jon Bock (Head of Marketing), Barry Conklin (sales), Zach Krasner, and Charles de Fréminville come from a July 2025 third-party org analysis (The Big Byte); Brian Hall has since joined as CMO, so Bock's reporting line/title may have changed — verify before outreach. Marjorie Janiewicz was US GM in mid-2025 and is CRO as of early 2026 (HgCapital podcast post). "Yihan Wan" on the Voxtral list is treated as a typo for Yihan Wang.
Alexandre Sablayrolles and other early researchers: no departure evidence found; retained at medium confidence.
LinkedIn coverage: the search index has thin coverage of linkedin.com/in pages; only 6 profile URLs could be verified (Lample, Lacroix, Janiewicz, S. Yang, Z. Xu, M. Ünsal). Slugs for Yang and Ünsal are derived from their own LinkedIn post URLs. Others left blank rather than guessed.
Not individually enumerated: the ~35-person Emmi AI team (physics-AI, Linz) that joined via acquisition in May 2026, and several hundred 2025-26 hires in sales/deployment/ops who leave little public footprint. Actual headcount (~1,000) far exceeds this census.

Cohere (93)

Name	Role/title	Level	LinkedIn	Backup	Evidence	Confidence
Aidan Gomez	Co-Founder & CEO	Leadership	in/aidangomez	cohere.com/blog/authors/aidan-gomez	cohere.com/blog/authors	high
Nick Frosst	Co-Founder	Leadership	in/nick-frosst-19b80463	cohere.com/blog/authors/nicholas-frosst	cohere.com/blog/authors	high
Ivan Zhang	Co-Founder	Leadership	in/1vnzh	cohere.com/blog/authors/ivan-zhang	cohere.com/blog/authors	high
Joelle Pineau	Chief AI Officer (joined Aug 2025)	Leadership	ca.linkedin.com/in/joelle-pineau-371574141	—	cohere.com/research/papers/tiny-aya-bridg…	high
Phil Blunsom	Chief Scientist	Leadership	—	cohere.com/blog/authors/phil-blunsom	cohere.com/research/papers/tiny-aya-bridg…	high
Marzieh Fadaee	Head of Cohere Labs (promoted after Sara Hooker's departure, Oct 2025)	Leadership	—	—	betakit.com/ex-cohere-execs-sara-hooker-a… ; arxiv.org/pdf/2606.13808v1	high
Nils Reimers	Director of Embeddings & Search	Leadership	in/reimersnils	cohere.com/blog/authors/nils-reimers	cohere.com/blog/authors	high
Patrick Lewis	Director of Modelling (RAG/agents)	Leadership	—	—	arxiv.org/abs/2504.00698	high
Autumn Moulder	VP, Engineering	Leadership	—	cohere.com/blog/authors/autumn-moulder	cohere.com/blog/authors	high
Seraphina Goldfarb-Tarrant	Head of Safety	Leadership	—	cohere.com/blog/authors/seraphina-goldfar…	cohere.com/blog/authors (also arXiv submitter of Command A tech report)	high
Jay Alammar	Director, Engineering Fellow	Leadership	in/jalammar	cohere.com/blog/authors/jay-alammar	cohere.com/blog/authors	high
Nick Jakobi	Director of Product, Core Modeling	Leadership	—	cohere.com/blog/authors/nick-jakobi	cohere.com/blog/authors	high
Vivek Muppalla	Director, Forward Deployed Engineering	Leadership	—	cohere.com/blog/authors/vivek-muppalla	cohere.com/blog/authors	high
Matthias Gallé	Manager of Technical Staff (research lead)	Leadership	—	cohere.com/blog/authors/matthias-gall	cohere.com/blog/authors	high
Alex Wang	Manager of Technical Staff, Data & Eval	Leadership	—	cohere.com/blog/authors/alex-wang	cohere.com/blog/authors	high
Kelly Marchisio (St Denis)	Manager of Technical Staff, Multilingual	Leadership	—	kellymarchisio.github.io	cohere.com/blog/authors (listed as Kelly St Denis)	high
Sylvie Shang Shi	Manager of Technical Staff	Leadership	—	cohere.com/blog/authors/sylvie-shi	cohere.com/blog/authors	high
Ye Shen	Manager of Technical Staff	Leadership	—	cohere.com/blog/authors/ye-shen	cohere.com/blog/authors	high
Edward Kim	Manager of Technical Staff	Leadership	—	cohere.com/blog/authors/edward-kim	cohere.com/blog/authors	high
Evren Tumer	Manager of Technical Staff	Leadership	—	cohere.com/blog/authors/evren-tumer	cohere.com/blog/authors	high
Hemant Jain	Manager of Technical Staff	Leadership	—	cohere.com/blog/authors/hemant-jain	cohere.com/blog/authors	high
Ben Eagan	Manager of Technical Staff	Leadership	—	cohere.com/blog/authors/ben-eagan	cohere.com/blog/authors	high
Manoj Govindassamy	Manager of Technical Staff	Leadership	—	cohere.com/blog/authors/manoj-govindassamy	cohere.com/blog/authors	high
Michael Sachs	Senior Manager of Technical Staff	Leadership	—	cohere.com/blog/authors/michael-sachs	cohere.com/blog/authors	high
Ahmet Üstün	Senior Research Scientist, Cohere Labs (Tiny Aya principal senior advisor)	IC	—	cohere.com/blog/authors/ahmet-stn	cohere.com/research/papers/tiny-aya-bridg…	high
Julia Kreutzer	Senior Research Scientist, Cohere Labs	IC	—	cohere.com/blog/authors/julia-kreutzer	arxiv.org/pdf/2606.13808v1 (June 2026, corresponding author)	high
Beyza Ermis	Senior Research Scientist, Cohere Labs	IC	—	—	cohere.com/research/papers/tiny-aya-bridg…	high
Alejandro R. Salamanca	Researcher, Cohere Labs (Tiny Aya co-first author, corresponding @cohere.com)	IC	—	—	cohere.com/research/papers/tiny-aya-bridg…	high
Diana Abagyan	Researcher, Cohere (Tiny Aya co-first author)	IC	—	—	cohere.com/research/papers/tiny-aya-bridg…	high
Daniel D'souza	Senior Research Engineer, Cohere Labs	IC	—	—	arxiv.org/pdf/2606.13808v1 ; mentor in cohere.com/blog/tiny-aya-in-the-wild (Jul 2026)	high
Ammar Khairi	Researcher, Cohere	IC	—	—	cohere.com/research/papers/tiny-aya-bridg…	high
David Mora	Researcher, Cohere	IC	—	—	cohere.com/research/papers/tiny-aya-bridg…	high
Mehrnaz Mofakhami	Researcher, Cohere Labs	IC	—	—	arxiv.org/pdf/2606.13808v1 (June 2026)	high
Ananya Sahu	Researcher, Cohere Labs (Culture Funnel first author)	IC	—	—	arxiv.org/pdf/2606.13808v1 (June 2026, corresponding author)	high
Thomas Euyang	Researcher, Cohere Labs	IC	—	—	arxiv.org/pdf/2606.13808v1 (June 2026)	high
Saurabh Dash	Member of Technical Staff	IC	—	cohere.com/blog/authors/saurabh-dash	cohere.com/research/papers/tiny-aya-bridg…	high
Viraat Aryabumi	Researcher, Cohere	IC	—	—	cohere.com/research/papers/tiny-aya-bridg…	high
Hangyu Lin	Researcher, Cohere	IC	—	—	cohere.com/research/papers/tiny-aya-bridg…	high
Acyr Locatelli	Researcher (pretraining), Cohere	IC	—	—	cohere.com/research/papers/tiny-aya-bridg…	high
Tom Kocmi	Member of Technical Staff (MT evaluation)	IC	—	kocmi.tk	cohere.com/research/papers/tiny-aya-bridg…	high
Nikolas Gritsch	Researcher, Cohere (Tiny Aya Expedition mentor)	IC	—	—	cohere.com/blog/tiny-aya-in-the-wild (Jul 2026)	high
Nikita Moghe	Researcher, Cohere (Expedition mentor, multilingual)	IC	—	nikitacs16.github.io	labscommunity.cohere.com/blog/2026/a-comm… (Jun 2026)	high
Hongyu (Charlie) Chen	Member of Technical Staff (Expedition mentor)	IC	—	cohere.com/blog/authors/hongyu-charlie-ch…	labscommunity.cohere.com/blog/2026/mix-fi… (May 2026)	high
Arash Ahmadian	Member of Technical Staff (RL/post-training)	IC	—	cohere.com/blog/authors/arash-ahmadian	cohere.com/blog/authors	high
Maximilian Mozes	Member of Technical Staff (safety)	IC	—	cohere.com/blog/authors/maximilian-mozes	cohere.com/blog/authors	high
Alexandre Matton	Member of Technical Staff	IC	—	cohere.com/blog/authors/alexandre-matton	cohere.com/blog/authors	high
Amr Kayid	Member of Technical Staff	IC	—	cohere.com/blog/authors/amr-kayid	cohere.com/blog/authors	high
Ali Edalati	Member of Technical Staff, Foundations	IC	—	cohere.com/blog/authors/ali-edalati	cohere.com/blog/authors	high
Ekagra Ranjan	Member of Technical Staff, Foundations	IC	—	cohere.com/blog/authors/ekagra-ranjan	cohere.com/blog/authors	high
Felipe Cruz (Andres Felipe Cruz-Salinas)	Member of Technical Staff, Foundations	IC	—	cohere.com/blog/authors/felipe-cruz	cohere.com/blog/authors	high
Conway Zhu	Member of Technical Staff, Foundations	IC	—	cohere.com/blog/authors/conway-zhu	cohere.com/blog/authors	high
Zewen Shen	Member of Technical Staff, Foundations	IC	—	cohere.com/blog/authors/zewen-shen	cohere.com/blog/authors	high
Abdullah Elkady	Member of Technical Staff	IC	—	cohere.com/blog/authors/abdullah-elkady	cohere.com/blog/authors	high
Abigail MacKenzie-Armes	Member of Technical Staff	IC	—	cohere.com/blog/authors/abigail-mackenzie…	cohere.com/blog/authors	high
Alekhya Nandula	Member of Technical Staff	IC	—	cohere.com/blog/authors/alekhya-nandula	cohere.com/blog/authors	high
Beatrix De Wilde	Member of Technical Staff	IC	—	cohere.com/blog/authors/beatrix-de-wilde	cohere.com/blog/authors	high
Chris Kim	Member of Technical Staff	IC	—	cohere.com/blog/authors/chris-kim	cohere.com/blog/authors	high
Joon Kim	Member of Technical Staff	IC	—	cohere.com/blog/authors/joon-kim	cohere.com/blog/authors	high
Leila Chan Currie	Member of Technical Staff	IC	—	cohere.com/blog/authors/leila-chan-currie	cohere.com/blog/authors ; arxiv.org/abs/2504.00698	high
Lucas Fayoux	Member of Technical Staff	IC	—	cohere.com/blog/authors/lucas-fayoux	cohere.com/blog/authors	high
Nabila Abraham	Member of Technical Staff	IC	—	cohere.com/blog/authors/nabila-abraham	cohere.com/blog/authors	high
Neeral Beladia	Member of Technical Staff	IC	—	cohere.com/blog/authors/neeral-beladia	cohere.com/blog/authors ; arxiv.org/abs/2504.00698	high
Robert Kozin	Member of Technical Staff	IC	—	cohere.com/blog/authors/robert-kozin	cohere.com/blog/authors	high
Trushant Kalyanpur	Member of Technical Staff	IC	—	cohere.com/blog/authors/trushant-kalyanpur	cohere.com/blog/authors ; arxiv.org/abs/2504.00698	high
Vlad Shmyhlo	Member of Technical Staff	IC	—	cohere.com/blog/authors/vlad-shmyhlo	cohere.com/blog/authors ; arxiv.org/abs/2504.00698	high
Ads Dawson	Staff Security Engineer	IC	—	cohere.com/blog/authors/ads-dawson	cohere.com/blog/authors	high
Matt Maloney	Member of Technical Staff, Security	IC	—	cohere.com/blog/authors/matt-maloney	cohere.com/blog/authors	high
Florian Strub	Research Scientist (RL)	IC	in/florian-strub-64443527	—	LinkedIn title "Florian STRUB - Cohere"; arxiv.org/abs/2504.00698	high
Brittawnya Prince	Operations Associate, Cohere Labs	IC	—	cohere.com/blog/authors/brittawnya-prince	cohere.com/research/papers/tiny-aya-bridg…	high
Madeline Smith	Community and Outreach Specialist, Cohere Labs	IC	—	cohere.com/blog/authors/madeline-smith	cohere.com/research/papers/tiny-aya-bridg…	high
Max Bartolo	Research Scientist (reasoning/data lead)	IC	—	maxbartolo.com	arxiv.org/abs/2504.00698	medium
Jon Ander Campos	Research Scientist (RLHF)	IC	—	—	arxiv.org/abs/2504.00698	medium
Yannis Flet-Berliac	Research Scientist (RL)	IC	—	—	arxiv.org/abs/2504.00698	medium
Nathan Grinsztajn	Research Scientist (RL)	IC	—	—	arxiv.org/abs/2504.00698	medium
Matthieu Geist	Research Scientist (RL)	IC	—	—	arxiv.org/abs/2504.00698	medium
Mohammad Gheshlaghi Azar	Research Scientist (RL)	IC	—	—	arxiv.org/abs/2504.00698	medium
Pat Verga	Research Scientist/lead	IC	—	—	arxiv.org/abs/2504.00698	medium
Adrien Morisot	Member of Technical Staff	IC	—	—	arxiv.org/abs/2504.00698	medium
Wojciech Kryscinski	Member of Technical Staff	IC	—	—	arxiv.org/abs/2504.00698	medium
Yixuan Su	Member of Technical Staff	IC	—	—	arxiv.org/abs/2504.00698	medium
Kris Cao	Member of Technical Staff (pretraining)	IC	—	—	arxiv.org/abs/2504.00698	medium
Dennis Aumiller	Member of Technical Staff (data/eval)	IC	—	dennis-aumiller.de	arxiv.org/abs/2504.00698	medium
Tom Hosking	Member of Technical Staff (eval)	IC	—	tomho.sk	arxiv.org/abs/2504.00698	medium
Tom Sherborne	Member of Technical Staff	IC	—	—	arxiv.org/abs/2504.00698	medium
Aakanksha	Member of Technical Staff (mononym; ex-Labs research scholar)	IC	—	—	arxiv.org/abs/2504.00698	medium
Wei-Yin Ko	Member of Technical Staff	IC	—	—	arxiv.org/abs/2504.00698	medium
Jimin Sun	Member of Technical Staff	IC	—	—	arxiv.org/abs/2504.00698	medium
Irem Ergün	Member of Technical Staff	IC	—	—	arxiv.org/abs/2504.00698	medium
Milad Alizadeh	Member of Technical Staff	IC	—	—	arxiv.org/abs/2504.00698	medium
Bharat Venkitesh	Member of Technical Staff (inference)	IC	—	—	arxiv.org/abs/2504.00698	medium
Alice Schoenauer Sebag	Member of Technical Staff (safety)	IC	—	—	arxiv.org/abs/2504.00698	medium
John Dang	Researcher, Cohere Labs (Aya models)	IC	—	—	arxiv.org/abs/2504.00698	medium
Shivalika Singh	Research Associate, Cohere Labs	IC	—	—	labscommunity.cohere.com/get-started/comm… ; Aya papers	medium

Caveats & departures excluded (9)

Sara Hooker EXCLUDED: left Cohere in August 2025; co-founded and is CEO of Adaption Labs (announced Oct 7, 2025; $50M seed Feb 2026). She still appears on cohere.com/blog/authors as "VP of C4AI" — that page is stale for her. Sources: techcrunch.com/2025/10/22/why-coheres-ex-…, betakit.com/ex-cohere-execs-sara-hooker-a…. The Tiny Aya paper (Feb 2026) explicitly footnotes her "Now at Adaption Labs."
Sudip Roy EXCLUDED: former Senior Director of Inference/Model Serving, left Cohere in 2025 to co-found Adaption Labs (CTO). Also still listed on the stale blog authors page.
Sebastian Ruder EXCLUDED: former Multilinguality Lead at Cohere, now Research Scientist at Meta Superintelligence Labs (left ~late 2024).
Sara Rajaee EXCLUDED: Tiny Aya author footnoted as work done during a Cohere internship; currently a PhD candidate at University of Amsterdam.
Marzieh Fadaee was promoted to head Cohere Labs after Hooker's departure (BetaKit, Oct 2025); Joelle Pineau (ex-Meta FAIR) joined as Chief AI Officer in Aug 2025 and appears on the Feb 2026 Tiny Aya paper.
"Medium" confidence rows rest on Command A tech report authorship (Apr 2025, ~220 authors) without independently found 2026 confirmation; given the Hooker/Roy/Ruder departures, individual attrition among these rows is possible (e.g., Sander Land and Aleksandra Piktus were omitted for this reason despite Command A authorship, as I could not confirm current status).
The cohere.com/blog/authors page (acquired May 2026) is the single richest title source but includes some stale entries (Hooker, Roy) and non-employees (AI Singapore staff, guest authors) — those were excluded; GTM/sales-only authors were also mostly omitted to keep the census research/engineering-weighted.
LinkedIn URLs are sparse (7 rows): LinkedIn profiles are poorly represented in the search index; the Backup profile column (cohere.com author pages, personal sites) compensates. Names without any profile link were kept per instructions.
The Command A tech report is credited to "Team Cohere" with ~220 individual names (full list extracted from arXiv citation_author metadata at arxiv.org/abs/2504.00698); only a curated subset appears above — the remaining ~130 names are additional candidate employees (as of Apr 2025) if a larger pool is needed.

Moonshot AI (81)

Name	Role/title	Level	LinkedIn	Backup	Evidence	Confidence
Zhilin Yang (杨植麟)	Founder & CEO	Leadership	—	Google Scholar (XLNet/Transformer-XL author); GitHub kimiyoung	en.wikipedia.org/wiki/Moonshot_AI ; K3/K2.5/K2	high
Xinyu Zhou (周昕宇)	Co-founder; algorithms lead	Leadership	—	ShuffleNet (CVPR2018) author; ex-Megvii	asianintelligence.ai/reports/moonshot-ai-… ; K3/K2.5/K2	high
Yuxin Wu (吴育昕)	Co-founder; research/architecture lead	Leadership	—	GitHub ppwwyyxx (Detectron2, GroupNorm); ex-Meta FAIR	asianintelligence.ai/reports/moonshot-ai-… ; K3/K2.5/K2	high
Yutao Zhang (张宇韬)	Co-founder & CTO	Leadership	—	ex-AMiner core dev; Tsinghua (Jie Tang)	asianintelligence.ai/reports/moonshot-ai-…	high
Yutong Zhang (张予彤)	President (strategy/commercialization/fundraising; joined late 2025)	Leadership	—	Tsinghua BSc, Stanford MS	asianintelligence.ai/reports/moonshot-ai-…	high
Guokun Lai	Co-founder / research leadership	Leadership	—	OpenReview ~Guokun_Lai1	K3/K2.5/K2; KL (listed in leadership position)	high
Yulun Du	Research leadership (listed last = project lead in KL)	Leadership	—	—	KL leadership ordering; K3/K2.5/K2	high
Jianlin Su	Researcher (RoPE / attention)	IC	—	OpenReview ~Jianlin_Su1; blog spaces.ac.cn (kexue.fm)	K3/K2.5/K2 (sustained)	high
Flood Sung	Researcher (RL)	IC	—	GitHub floodsung; OpenReview ~Flood_Sung1	K3/K2.5/K2 (sustained)	high
Bowen Qu	Researcher	IC	—	OpenReview ~Bowen_Qu1	K3/K2.5/K2 (sustained)	high
Lin Sui	Researcher	IC	—	OpenReview ~Lin_Sui	K3/K2.5/K2 (sustained)	high
Weiran He	Researcher	IC	—	—	K3/K2.5/K2 (sustained)	high
Enzhe Lu	Researcher	IC	—	—	K3/K2.5/K2 (sustained)	high
Chenjun Xiao	Researcher	IC	—	—	K3/K2.5/K2 (sustained)	high
Junjie Yan	Researcher	IC	—	—	K3/K2.5/K2 (sustained)	high
Enming Yuan	Researcher	IC	—	—	K3/K2.5/K2 (sustained)	high
Longhui Yu	Researcher	IC	—	—	K3/K2.5/K2 (sustained)	high
Shaowei Liu	Researcher	IC	—	—	K3/K2.5/K2 (sustained)	high
Haiming Wang	Researcher	IC	—	—	K3/K2.5/K2 (sustained)	high
Yichen Feng	Researcher	IC	—	—	K3/K2.5/K2 (sustained)	high
Zhejun Jiang	Researcher	IC	—	—	K3/K2.5/K2 (sustained)	high
Weixiao Huang	Researcher	IC	—	—	K3/K2.5/K2 (sustained)	high
Bohong Yin	Researcher	IC	—	—	K3/K2.5/K2 (sustained)	high
Chu Wei	Researcher	IC	—	—	K3/K2.5/K2 (sustained)	high
Zhengtao Wang	Researcher	IC	—	—	K3/K2.5/K2 (sustained)	high
Chao Hong	Researcher	IC	—	—	K3/K2.5/K2 (sustained)	high
Yutian Chen	Researcher	IC	—	—	K3/K2.5/K2 (sustained)	high
Guanduo Chen	Researcher	IC	—	—	K3/K2.5/K2 (sustained)	high
Huabin Zheng	Researcher	IC	—	—	K3/K2.5/K2 (sustained)	high
Feng Wang	Researcher	IC	—	—	K3/K2.5/K2 (sustained)	high
Yibo Liu	Researcher	IC	—	—	K3/K2.5/K2 (sustained)	high
Mengnan Dong	Researcher	IC	—	—	K3/K2.5/K2 (sustained)	high
Zheng Zhang	Researcher	IC	—	—	K3/K2.5/K2 (sustained)	high
Siyuan Pan	Researcher	IC	—	—	K3/K2.5/K2 (sustained)	high
Wenhao Wu	Researcher	IC	—	—	K3/K2.5/K2 (sustained)	high
Longyu Guan	Researcher	IC	—	—	K2/K2.5/KL (sustained)	high
Jiawen Tao	Researcher	IC	—	—	K2/K2.5/KL (sustained)	high
Xinran Xu	Researcher	IC	—	—	K3/K2.5/K2 (sustained)	high
Yuzhi Wang	Researcher	IC	—	—	K3/K2.5/K2 (sustained)	high
Dehao Zhang	Researcher	IC	—	—	K3/K2.5/K2 (sustained)	high
Yizhi Zhang	Researcher	IC	—	—	K3/K2.5/K2 (sustained)	high
Yu Fan	Researcher	IC	—	—	K3/K2.5/K2 (sustained)	high
Yejie Wang	Researcher	IC	—	—	K3/K2.5/K2 (sustained)	high
Longguang Zhong	Researcher	IC	—	—	K3/K2.5/K2 (sustained)	high
Yanru Chen	Researcher	IC	—	—	K3/K2.5/K2 (sustained)	high
Weixin Xu	Researcher	IC	—	—	K3/K2.5/K2 (sustained)	high
Wentao Li	Researcher	IC	—	—	K3/K2.5/K2 (sustained)	high
Shaoguang Mao	Researcher	IC	—	—	K3/K2.5/K2 (sustained)	high
Haoning Wu	Researcher	IC	—	—	K3/K2.5/K2 (sustained)	high
Haotian Yao	Researcher	IC	—	—	K3/K2.5/K2 (sustained)	high
Haoyu Lu	Researcher	IC	—	—	K3/K2.5/K2 (sustained)	high
Xin Men	Researcher	IC	—	—	K3/K2.5/K2 (sustained)	high
Zhaowei Li	Researcher	IC	—	—	K3/K2.5/K2 (sustained)	high
Zheming Li	Researcher	IC	—	—	K3/K2.5/K2 (sustained)	high
Cheng Li	Researcher	IC	—	—	K3/K2.5/K2 (sustained)	high
Fang Li	Researcher	IC	—	—	K3/K2.5/K2 (sustained)	high
Yiwei Li	Researcher	IC	—	—	K3/K2.5/K2 (sustained)	high
Haoyang Li	Researcher	IC	—	—	K3/K2.5/K2 (sustained)	high
Ruoyu Qin	Researcher	IC	—	—	K3/K2.5/K2 (sustained)	high
Zeyu Qin	Researcher	IC	—	—	K3/K2.5/K2 (sustained)	high
Chaoran Tian	Researcher	IC	—	—	K3/K2.5/K2 (sustained)	high
Yunpeng Tai	Researcher	IC	—	—	K3/K2.5/K2 (sustained)	high
Heyi Tang	Researcher	IC	—	—	K3/K2.5/K2 (sustained)	high
Qizheng Gu	Researcher	IC	—	—	K3/K2.5/K2 (sustained)	high
Yifan Bai	Researcher	IC	—	—	K3/K2.5/K2 (sustained)	high
Yiping Bao	Researcher	IC	—	—	K3/K2.5/K2 (sustained)	high
Hao Zhang	Researcher	IC	—	—	K3/K2.5/K2 (sustained)	high
Yikai Zhao	Researcher	IC	—	—	K3/K2.5/K2 (sustained)	high
Zijia Zhao	Researcher	IC	—	—	K3/K2.5/K2 (sustained)	high
Jinguo Zhu	Researcher	IC	—	—	K3/K2.5/K2 (sustained)	high
Weiyu Zhuang	Researcher	IC	—	—	K3/K2.5/K2 (sustained)	high
Xinxing Zu	Researcher	IC	—	—	K3/K2.5/K2 (sustained)	high
Shangyi Geng	Researcher	IC	—	—	K3/K2.5/K2 (sustained)	high
Hongcheng Gao	Researcher	IC	—	—	K3/K2.5/K2 (sustained)	high
Tong Gao	Researcher	IC	—	—	K3/K2.5/K2 (sustained)	high
Xiaohan Lin	Researcher	IC	—	—	K3/K2.5/K2 (sustained)	high
Zhiqi Huang	Researcher	IC	—	—	K3/K2.5/K2 (sustained)	high
Zhenxing Hu	Researcher	IC	—	—	K3/K2.5/K2 (sustained)	high
Chenzhuang Du	Researcher	IC	—	—	K3/K2.5/K2 (sustained)	high
Dikang Du	Researcher	IC	—	—	K3/K2.5/K2 (sustained)	high
Yingjiang Chen	Researcher	IC	—	—	K3/K2.5	high

Caveats & departures excluded (9)

Source basis. All names are drawn from Moonshot's own technical-report contributor appendices (Kimi K3 Jul 2026, K2.5 Feb 2026, K2 Jul 2025, Kimi Linear Oct 2025). Every IC row marked "sustained" appears in three separate contributor lists spanning mid-2025 to mid-2026, so continuous employment is well evidenced. A handful (e.g. Longyu Guan, Jiawen Tao) are sustained via K2+K2.5+KL rather than K3; still high confidence. Yingjiang Chen is in K3+K2.5 only.
Titles. These reports do not assign individual job titles, so ICs are labeled "Researcher." Real roles span research scientist, research engineer, infra/systems, and data — not distinguishable from the author lists. Confirmed team functions from press: Xinyu Zhou leads algorithms, Yuxin Wu leads research/architecture, Yutao Zhang is CTO, Yutong Zhang is President.
Leadership structure. Press (KuCoin/36kr coverage of the K3 launch) states Moonshot has five founders and a deliberately flat org ("no job titles, no KPIs, no departmental silos"), each founder directly managing 40–50 people. Yutao Zhang (张宇韬) is consistently named co-founder & CTO. Note a naming ambiguity: the author-listed "Yutong Zhang" may be a technical researcher (张宇彤) distinct from President Zhang Yutong (张予彤) who joined late 2025; I listed the President row from press and did not double-count a separate researcher row.
Romanization collisions. Chinese names romanize with heavy collision (many "Hao Zhang", "Cheng Li", "Yang Li", "Wei Wang", etc.). Some rows may conflate two people, and initials-only entries (Y. Charles, L.H. Xu, H.S. Che, M. C.) are deliberately anonymized in the source. Treat each row as "a contributor by this romanized name," not a unique-resolved identity.
Departures flagged / excluded. Kimi Linear (Oct 2025) explicitly marks Zongyu Lin with an asterisk = "no longer part of our team." He appears in K2 (mid-2025) but is absent from K2.5 and K3 — consistent with a departure during the 2025 poaching wave; excluded from current roster.
External collaborators excluded (not Moonshot staff). Kimi Linear marks with # : Songlin Yang (MIT), Guohong Fu (Soochow University); and by superscript affiliation Jiaxi Hu and Jiezhong Qiu (external institutions). Note Jiaxi Hu also appears in K3/K2.5 main contributor lists, so his status is ambiguous (possible later hire); left out of the roster to be safe. Songlin Yang is the well-known flash-linear-attention author (GitHub sustcsonglin / OpenReview ~Songlin_Yang1) and is a collaborator, not an employee.
LinkedIn coverage is effectively nil. As expected for a Chinese lab, `site:linkedin.com/in "Moonshot AI"` surfaced no usable individual IC profiles; the LinkedIn column is blank for all rows. Backups, where present, are OpenReview/GitHub/blogs, and were only found for a small number of well-known researchers (Jianlin Su, Flood Sung, Guokun Lai, Bowen Qu, Lin Sui) plus the public GitHub/Scholar identities of two founders (Yuxin Wu = ppwwyyxx, Zhilin Yang = kimiyoung). The vast majority of ICs have no discoverable public backup profile.
Depth available. This table is a curated ~80 of a much larger pool: the K3 report alone lists 401 contributors, and 133 individuals appear in all three of K3+K2.5+K2. The full sustained list can be expanded well beyond this table if more rows are needed; names were selected for cross-report continuity and alphabetical spread.
Distillation dispute (context, not a census issue). In Feb 2026 Anthropic publicly accused Moonshot of large-scale distillation of Claude; unrelated to employee identities but part of the 2026 backdrop.

DeepSeek (78)

Name	Role/title	Level	LinkedIn	Backup	Evidence	Confidence
Wenfeng Liang (Liang Wenfeng)	Founder & CEO	Leadership	—	—	V4 + V3 author; cnbc.com/2026/06/18/no-poaching-our-peopl…	high
Yu Wu	Technical Staff; Lead, LLM Alignment Team	Leadership	—	sites.google.com/view/wuyu/home	V4 + V3 author; homepage states "lead the LLM Alignment Team"	high
Xiaokang Chen	Technical Staff; Multimodal group lead (Janus series)	Leadership	—	charlescxk.github.io	V4 + V3 author; homepage: "leading the multimodal group"	high
Zhihong Shao	Research Scientist (math/reasoning; DeepSeekMath, R1 core; MIT TR35)	IC	—	zhihongshao.github.io	V4 + V3 author; homepage	high
Damai Dai	Researcher (MoE architecture; DeepSeekMoE lead author)	IC	—	openreview.net/profile?id=~Damai_Dai1	V4 + V3 author; OpenReview: Researcher, DeepSeek-AI 2023–present	high
Runxin Xu	Researcher (R1/Math core contributor)	IC	—	runxinxu.github.io/aboutme	V4 + V3 author; homepage: "researcher at DeepSeek"	high
Wangding Zeng	Researcher (MoE / Native Sparse Attention)	IC	—	openreview.net/profile?id=~Wangding_Zeng1	V4 + V3 author; OpenReview confirmed @deepseek.com	high
Zhenda Xie	Researcher (vision/foundation models; mHC)	IC	—	github.com/zdaxie (homepage zdaxie.github.io)	V4 + V3 author; GitHub: "Researcher @deepseek-ai"	high
Chenggang Zhao	Researcher/Engineer (GPU kernels, DeepGEMM)	IC	—	openreview.net/profile?id=~Chenggang_Zhao1	V4 + V3 author; OpenReview confirmed @deepseek.com	high
Jingyang Yuan	Researcher (first author, Native Sparse Attention)	IC	—	—	V4 + V3 author	high
Qihao Zhu	Researcher (code models; DeepSeek-Coder-V2, R1)	IC	—	—	V4 + V3 author	high
Peiyi Wang	Researcher (math reasoning, process supervision)	IC	—	—	V4 + V3 author	high
Junxiao Song	Researcher (GRPO / R1 core)	IC	—	—	V4 + V3 author	high
Xingchao Liu	Researcher (generative models; rectified flow)	IC	—	gnobitab.github.io	V4 + V3 author; homepage: "Researcher at DeepSeek AI, Beijing"	high
Zizheng Pan	Researcher (multimodal, Janus)	IC	—	zizhengpan.github.io	V4 + V3 author; homepage: "researcher at DeepSeek"	high
Zhibin Gou	Researcher (LLM reasoning & RL; ToRA)	IC	—	zubingou.github.io	V4 + V3 author; homepage: "AI researcher at DeepSeek"	high
Yuxian Gu	Researcher (LLM efficiency; Tsinghua PhD)	IC	—	t1101675.github.io	V4 author; homepage: "researcher at DeepSeek"	high
Shengding Hu	Researcher (joined Feb 2025; ex-THUNLP/MiniCPM)	IC	—	shengdinghu.github.io	V4 author; homepage log: "started at DeepSeek, working towards AGI"	high
Hao Li	Researcher	IC	—	cpsxhao.github.io	V4 author; homepage: "researcher at DeepSeek AI" (haoli@deepseek.com)	high
Yuhan Wu	Researcher (LLM post-training, CodeMath team; joined Feb 2025)	IC	—	wuyuhan3z.github.io	V4 author; homepage + openreview.net/profile?id=~Yuhan_Wu1 ("2026–Present")	high
Yongtong Wu	Research Engineer (systems; PKU PhD; ytwu@deepseek.com)	IC	—	jokerwyt.github.io	V4 author; homepage	high
Yuyang Zhou	Research Scientist (deep learning; joined Aug 2024)	IC	—	zhouyuyang2002.github.io	V4 + V3 author; homepage	high
Zhiyu Wu	Researcher (multimodal; DeepSeek-VL2/Janus)	IC	—	openreview.net/profile?id=~Zhiyu_Wu1	V4 + V3 author; OpenReview: Researcher, DeepSeek AI	high
Z.F. Wu	Researcher (R1 core)	IC	—	openreview.net/profile?id=~Z.F._Wu1	V4 + V3 author; OpenReview: Researcher, DeepSeek 2024–present	high
Lean Wang	Researcher (auxiliary-loss-free load balancing, first author)	IC	—	—	V4 + V3 author	high
Huazuo Gao	Researcher/Engineer (training infrastructure)	IC	—	—	V4 + V3 author	high
Chenze Shao	Researcher (sequence modeling)	IC	—	—	V4 author	high
Shirong Ma	Researcher (R1/Math)	IC	—	—	V4 + V3 author	high
Xiao Bi	Researcher (R1)	IC	—	—	V4 + V3 author	high
Dejian Yang	Researcher (code models)	IC	—	—	V4 + V3 author	high
Deli Chen	Researcher (data/alignment)	IC	—	—	V4 + V3 author	high
Liang Zhao	Researcher (training infra, FP8)	IC	—	—	V4 + V3 author	high
Jiashi Li	Engineer (infrastructure)	IC	—	—	V4 + V3 author	high
Xingkai Yu	Researcher (Janus multimodal)	IC	—	—	V4 + V3 author	high
Yinmin Zhong	Researcher (LLM serving systems; PKU)	IC	—	—	V4 author	high
Wentao Zhang	Researcher	IC	—	—	V4 + V3 author	high
Kang Guan	Researcher	IC	—	—	V4 + V3 author	high
Guanting Chen	Researcher	IC	—	—	V4 + V3 author	high
Kai Dong	Researcher	IC	—	—	V4 + V3 author	high
Bochao Wu	Researcher	IC	—	—	V4 + V3 author	high
Chengqi Deng	Researcher	IC	—	—	V4 + V3 author	high
Honghui Ding	Researcher	IC	—	—	V4 + V3 author	high
Yaofeng Sun	Researcher	IC	—	—	V4 + V3 author	high
Erhang Li	Researcher	IC	—	—	V4 + V3 author	high
Fangyun Lin	Researcher	IC	—	—	V4 + V3 author	high
Guangbo Hao	Researcher	IC	—	—	V4 + V3 author	high
Hanwei Xu	Researcher	IC	—	—	V4 + V3 author	high
Jingchang Chen	Researcher	IC	—	—	V4 + V3 author	high
Junjie Qiu	Researcher	IC	—	—	V4 + V3 author	high
Kaige Gao	Researcher	IC	—	—	V4 + V3 author	high
Lecong Zhang	Researcher	IC	—	—	V4 + V3 author	high
Mingchuan Zhang	Researcher	IC	—	—	V4 + V3 author	high
Panpan Huang	Researcher	IC	—	—	V4 + V3 author	high
Qiushi Du	Researcher	IC	—	—	V4 + V3 author	high
Ruiqi Ge	Researcher	IC	—	—	V4 + V3 author	high
Ruizhe Pan	Researcher	IC	—	—	V4 + V3 author	high
Runji Wang	Researcher	IC	—	—	V4 + V3 author	high
Shangyan Zhou	Researcher	IC	—	—	V4 + V3 author	high
Shanhuang Chen	Researcher	IC	—	—	V4 + V3 author	high
Shunfeng Zhou	Researcher	IC	—	—	V4 + V3 author	high
Tian Pei	Researcher	IC	—	—	V4 + V3 author	high
Wen Liu	Researcher (Janus multimodal)	IC	—	—	V4 + V3 author	high
Xiaodong Liu	Researcher	IC	—	—	V4 + V3 author	high
Xuecheng Su	Researcher	IC	—	—	V4 + V3 author	high
Yichao Zhang	Researcher	IC	—	—	V4 + V3 author	high
Yiliang Xiong	Researcher	IC	—	—	V4 + V3 author	high
Yixuan Tan	Researcher	IC	—	—	V4 + V3 author	high
Yiyang Ma	Researcher (multimodal, JanusFlow)	IC	—	—	V4 + V3 author	high
Yuheng Zou	Researcher	IC	—	—	V4 + V3 author	high
Zehui Ren	Researcher	IC	—	—	V4 + V3 author	high
Zhean Xu	Researcher	IC	—	—	V4 + V3 author	high
Zhengyan Zhang	Researcher	IC	—	—	V4 + V3 author	high
Zhewen Hao	Researcher	IC	—	—	V4 + V3 author	high
Zhuoshu Li	Researcher / senior staff	IC	—	—	V4 + V3 author	high
Zihui Gu	Researcher	IC	—	—	V4 + V3 author	high
Ziwei Xie	Researcher	IC	—	—	V4 + V3 author	high
Ziyi Gao	Researcher	IC	—	—	V4 + V3 author	high
Zilin Li	Researcher	IC	—	—	V4 + V3 author	high

Caveats & departures excluded (9)

Titles are mostly unknown. DeepSeek paper author lists give no titles; "Researcher" is used where no other evidence exists. Specialty annotations (e.g., "GRPO/R1 core", "Janus multimodal") come from lead/first authorship on the corresponding earlier DeepSeek papers, not from official titles.
Primary source is the DeepSeek-V4 technical report (Apr 2026), the newest flagship paper. Its Appendix A ("Author List", arxiv.org/html/2606.19348v1) lists 270 Research & Engineering authors and explicitly marks departed individuals with an asterisk — the strongest available "current as of 2026" signal. 260 unmarked R&E names remain; this table is a curated 78-row subset (all 260 are available in the appendix). 123 of the unmarked names also appear on the Dec 2024 V3 report ("V4 + V3 author"), an extra tenure signal.
Departures excluded (starred in the V4 report and/or press-confirmed): Daya Guo (→ ByteDance Seed, Mar 2026), Bingxuan Wang (→ Tencent Hunyuan), Chong Ruan (→ DeepRoute.ai / Yuanrong Qixing, chief scientist), Haoran Wei (OCR lead, departed ~Feb 2026), Haowei Zhang, Jun Ran, Junlong Li, Kezhao Huang, Y.Q. Wang, Zipeng Zhang; also Luo Fuli (→ Xiaomi MiMo, Nov 2025 — already absent from V4). Press: newsglobenow.com/new346166.html, cnbc.com/2026/06/18/no-poaching-our-peopl….
Absence from V4 is not proof of departure: some V3 authors missing from V4 (e.g., Aixin Liu, Huajian Xin, Fuli Luo, Shengfeng Ye) may have left, moved to non-authoring roles, or simply not contributed — only starred names are confirmed departures by DeepSeek itself.
LinkedIn is effectively absent for DeepSeek staff: a `site:linkedin.com/in DeepSeek` search returned no genuine DeepSeek-employee profiles (0 of 78 rows have LinkedIn). Backup profiles (personal homepages, GitHub, OpenReview, Google Scholar) are the practical contact/verification surface; 22 rows carry one.
Names are printed as in the papers: given name first, alphabetical by first name (e.g., "Wenfeng Liang" = Liang Wenfeng). Some authors use initials (J. Yang, M.S. Di, S.H. Liu, W. Zhang, etc.) — these were left out of the table as unresolvable to full identities.
The V4 report also lists ~48 current "Business & Compliance" staff (e.g., Yukun Zha, Wei An, Miaojun Wang, Xianzu Wang) — omitted here per the IC/researcher emphasis but available in the same appendix.
Shengding Hu's own homepage describes his Feb 2025 start as an "internship"; he is nonetheless a V4 R&E author, unstarred.
Level defaults to IC; only Liang Wenfeng (founder/CEO) and two self-described team leads (Yu Wu — LLM Alignment; Xiaokang Chen — multimodal group) are marked Leadership.

xAI (79)

Name	Role/title	Level	LinkedIn	Backup	Evidence	Confidence
Elon Musk	Founder & CEO	Leadership	—	x.com/elonmusk	en.wikipedia.org/wiki/XAI_(company)	high
Michael Nicolls	President (ex-Starlink)	Leadership	—	—	tesorb.com/xai-engineering-rebuild-grok-5…	high
Andrew Milich	Product co-lead	Leadership	—	x.com/milichab	awesomeagents.ai/news/xai-rebuild-cofound…	high
Jason Ginsburg	Product co-lead	Leadership	—	x.com/JasonBud	awesomeagents.ai/news/xai-rebuild-cofound…	high
Diego Pasini	Data annotation / Grok team lead	Leadership	—	—	timesofindia.indiatimes.com/technology/te…	high
Jack Garabedian	Human data team lead (ex-Starlink)	Leadership	linkedin.com/in/jgarabedian	—	bloomberg.com/news/articles/2026-06-09/mu…	high
Baris Akis	Engineering talent lead	Leadership	—	—	tesorb.com/xai-cofounders-exodus-grok-spa…	high
Jared Birchall	Operations lead (finance/legal/HR/security)	Leadership	—	—	exa.ai/websets/directory/xai-executives	high
Daniel Rowland	Colossus / Memphis data center lead	Leadership	—	—	exa.ai/websets/directory/xai-executives	high
Ashok Elluswamy	VP Software (Macrohard; ex-Tesla AI)	Leadership	—	—	finance.biggo.com/news/rTe59pwBNZYCTTDv-U…	high
Matt Monson	Data lead (ex-Starlink)	Leadership	—	—	tesorb.com/xai-engineering-rebuild-grok-5…	high
Jake Palmer	Physical infrastructure lead	Leadership	—	—	tesorb.com/xai-engineering-rebuild-grok-5…	high
Saurabh Kumar	ML infrastructure lead (joined Dec 2025, ex-AWS)	Leadership	—	—	idcnova.com/news/xAI-poaches-AWS-data-cen…	high
Sreekanth Pothanis	Supercompute team lead (joined Nov, ex-eBay)	Leadership	—	—	datacenterdynamics.com/en/news/xais-head-…	high
Brent Mayo	Senior manager, site builds (ex-SpaceX)	Leadership	—	—	datacenterdynamics.com/en/news/xais-head-…	medium
Xiao Sun	Executive, AI hardware & semiconductor research	Leadership	—	—	eu.36kr.com/en/p/3173550643495302	medium
Robert Ochoa	Human resources lead	Leadership	—	—	businessinsider.com/xai-org-chart-employe…	medium
Pablo Mendoza	Finance lead	Leadership	—	—	businessinsider.com/xai-org-chart-employe…	medium
Dustin Yelinek	Head of Strategic Pursuits	Leadership	—	—	refolk.ai/s/find-senior-research-and-infr…	medium
Monique Pintarelli	Head of global advertising	Leadership	—	—	basenor.com/blogs/news/xai-is-hiring-engi…	medium
Dan Hendrycks	Safety advisor / consultant	Leadership	—	—	shulou.com/a590463	medium
Devendra Singh Chaplot	Pre-training lead (ex-Mistral, ex-TML)	IC	—	x.com/dchaplot	storyboard18.com/digital/elon-musk-appoin…	high
Aman Madaan	Model factory & tooling lead	IC	—	—	implicator.ai/xai-loses-half-its-co-found…	high
Aditya Gupta	Post-training & RL lead	IC	—	x.com/adityagupta	storyboard18.com/digital/elon-musk-appoin…	high
Beibin Li	Post-training lead, Grok Code (ex-MS, ex-Meta)	IC	—	—	aol.com/articles/xai-reorganizes-engineer…	high
Xuhui Jia	Video/image model training lead (ex-DeepMind)	IC	—	—	aol.com/articles/xai-reorganizes-engineer…	high
Yukun Zhu	Video/image model training lead	IC	—	—	aol.com/articles/xai-reorganizes-engineer…	high
Juntang Zhuang	Pretraining lead (joined Jan 2024)	IC	—	grokipedia.com/page/Juntang_Zhuang	grokipedia.com/page/Juntang_Zhuang	high
Tianyi Zhang	MTS, Reasoning (search & factuality post-training)	IC	—	pttzty.github.io	pttzty.github.io	high
Tianle Li	MTS, Science of RL (joined May 2025)	IC	—	theorg.com/org/xai/org-chart/tianle-li	grokipedia.com/page/Tianle_Li	high
Zhenmei Shi	MTS, pretraining	IC	—	getprog.ai/profile/31812001	getprog.ai/profile/31812001	high
Daniel Dueri	Compute infrastructure	IC	linkedin.com	—	storyboard18.com/digital/elon-musk-appoin…	high
Zeeshan Patel	Researcher, world models (ex-Nvidia)	IC	—	—	ascendants.in/industry_events/elon-musk-x…	high
Ethan He	Researcher, world models (ex-Nvidia)	IC	—	—	ascendants.in/industry_events/elon-musk-x…	high
Lianmin Zheng	Text-to-image team	IC	—	—	eu.36kr.com/en/p/3173550643495302	high
Hexiang Hu	MTS, multimodal pre-training & image generation	IC	—	hexianghu.com	hexianghu.com	high
Xiang Li	MTS, Grok Imagine	IC	—	lxa9867.github.io	lxa9867.github.io	high
Andrew Burlinson	Expert Team Lead, Grok Imagine (human data/alignment)	IC	—	—	wenagi.com/roster/andrew-burlinson	high
Claudio Angrigiani	MTS (since Sept 2025)	IC	—	theorg.com/org/xai/org-chart/claudio-angrigiani	theorg.com/org/xai/org-chart/claudio-angr…	high
Zhejian P.	MTS (since Sept 2025)	IC	—	theorg.com/org/xai/org-chart/zhejian-p	theorg.com/org/xai/org-chart/zhejian-p	high
Raman Khatri	MTS (joined April 2025)	IC	—	—	grokipedia.com/page/raman-khatri	high
Joseph Jennings	MTS, post-training for agentic coding (joined May 2026)	IC	—	joseph-jennings.com	joseph-jennings.com	high
Ryan Kaufman	MTS, model capability measurement	IC	—	—	refolk.ai/s/find-senior-research-and-infr…	high
Zhuoyi (Zoey) Huang	MTS, RL for science & coding	IC	—	zhuoyihuang.com	zhuoyihuang.com	high
Satvik Ramaprasad	MTS	IC	—	—	businessinsider.com/xai-org-chart-employe…	high
Pawan Bhandarkar	MTS	IC	—	—	businessinsider.com/xai-org-chart-employe…	high
Parsa Tajik	Engineer (ad stack rebuild)	IC	linkedin.com/in/tajikparsa	—	webpronews.com/xs-ai-ad-overhaul-inside-t…	high
Wenlong Xiong	Traffic infrastructure engineer (joined April, ex-Robinhood)	IC	—	—	datacenterdynamics.com/en/news/xais-head-…	high
Yunlong Liu	AI infra / LLM pretraining	IC	—	—	eu.36kr.com/en/p/3173550643495302	high
Pin-Lun (Byron) Hsu	ML systems full stack	IC	—	—	eu.36kr.com/en/p/3173550643495302	high
Aman Gottumukkala	Software engineer	IC	—	—	pressinsider.com/news/two-indian-origin-a…	high
Xinlei Chen	Research scientist (ex-Meta FAIR, joined June)	IC	—	—	b17news.com/xai-has-hired-14-meta-employe…	high
Sheng Sen	AI research scientist (ex-Meta Llama, joined April)	IC	—	—	b17news.com/xai-has-hired-14-meta-employe…	high
Ching-Yao Chuang	Research scientist (ex-Meta, joined May)	IC	—	—	b17news.com/xai-has-hired-14-meta-employe…	high
Alan Rice	Data center manager, Memphis (ex-Meta)	IC	—	—	b17news.com/xai-has-hired-14-meta-employe…	high
Liz Balke	Mechanical engineer (ex-Tesla Dojo)	IC	—	—	datacenterdynamics.com/en/news/xais-head-…	high
Kevin K. Shah	Expert Team Lead / Sr. Lead Creative Producer	IC	—	—	refolk.ai/s/find-senior-research-and-infr…	medium
Xiaobin Wu	Technician	IC	—	—	eu.36kr.com/en/p/3173550643495302	medium
Jeffrey Weichsel	Program staff	IC	—	—	theagenttimes.com/articles/xai-recruits-w…	medium
Yao Fu	Scaling team	IC	—	—	digg.com/u/x/grok	medium
Arash B. (Bidgoli)	MTS	IC	linkedin.com/in/abidgoli	—	linkedin.com/pulse/meet-new-wave-iranian-…	medium
William Fu	MTS	IC	—	theorg.com/org/xai/org-chart/william-fu	theorg.com/org/xai/org-chart/william-fu	medium
Kaifeng Chen	MTS	IC	linkedin.com/in/kaifeng-chen-b37a2b69	—	linkedin.com/posts/kaifeng-chen-b37a2b69_…	medium
Akshey Deokule	MTS	IC	—	—	thestar.com.my/tech/tech-news/2026/07/20/…	medium
Liangchen Luo	MTS	IC	—	getprog.ai/profile/13470423	getprog.ai/profile/13470423	medium
Keiran Paster	Researcher / early employee (U Toronto PhD, on leave)	IC	—	keirp.com	keirp.com	medium
Marko Elez	xAI Partner (engineer)	IC	—	—	businessinsider.com/xai-org-chart-employe…	medium
Aram Moghaddassi	xAI Partner (engineer)	IC	—	—	businessinsider.com/xai-org-chart-employe…	medium
Aqueel Miqdad	xAI Partner (engineer)	IC	—	—	businessinsider.com/xai-org-chart-employe…	medium
Anton Shevchenko	xAI Partner (engineer)	IC	—	—	businessinsider.com/xai-org-chart-employe…	medium
Andy Kim	Infrastructure (Rowland report)	IC	—	—	businessinsider.com/xai-org-chart-employe…	medium
Lee Meyer	Infrastructure (Rowland report)	IC	—	—	businessinsider.com/xai-org-chart-employe…	medium
Alexander Coppess	Infrastructure (Rowland report)	IC	—	—	businessinsider.com/xai-org-chart-employe…	medium
Kai Musk	Engineering intern (Engineering Strike Team)	IC	—	—	businessinsider.com/xai-org-chart-employe…	medium
Marya Aslam	FP&A Director	IC	—	—	thecompanycheck.com/company/b/xai/mzcvjf1…	medium
Chris Globe	Revenue Finance Director	IC	—	—	thecompanycheck.com/company/b/xai/mzcvjf1…	medium
Corinne Lowe	Recruiting Coordinator	IC	—	—	thecompanycheck.com/company/b/xai/mzcvjf1…	medium
Pham Hy Hieu	Technical member (research)	IC	—	—	vietnamnet.vn/en/top-vietnamese-ai-scient…	medium
Haotian Liu	Text-to-image team	IC	—	—	eu.36kr.com/en/p/3173550643495302	medium

Caveats & departures excluded (30)

Volatile org: xAI went through a large 2025–26 rebuild after the SpaceX/X Corp merger; roles and reporting lines are churning fast (e.g., "Engineering Rebuild" leadership under new president Michael Nicolls). Titles reflect the most recent 2026 sourcing but may shift.
"xAI" collision: filtered out matches referring to "explainable AI" and to the older, unrelated x.ai email-scheduling company (Dennis R. Mortensen) — those are NOT this company and were excluded.
Non-xAI noise excluded: David Rozado (academic who studied Grok bias, not staff), Logan Kilpatrick & Noam Shazeer (Google/DeepMind), Aman Sanger & Michael Truell (Cursor/Anysphere founders — reported as recruiting targets, not confirmed xAI employees), Mark Zuckerberg, Mira Murati, Katie Miller (role unconfirmed).
Medium-confidence rows flagged where the only source is an org-chart aggregator (theorg, thecompanycheck, businessinsider org chart, exa.ai directory) or where a possible-departure signal exists but is weak.
Possible-departure watch (kept as medium, verify before use): Haotian Liu (one source suggests left early 2026), Pham Hy Hieu ("returns to teach in Ho Chi Minh City"), Keiran Paster (U Toronto cohort of departed Jimmy Ba / Tony Wu). Toby Pohlen and Manuel Kroiss/Ross Nordeen appear in BOTH "leading Macrohard/last founders remaining" and "departed" reporting — treated as departed below given the stronger exodus sourcing.
Igor Babuschkin — co-founder / chief engineer; left Aug 2025 to launch Babuschkin Ventures.
Yuhuai "Tony" Wu — led Grok Reasoning; left ~Feb 2026.
Jimmy Ba — research head (U Toronto); left Feb 2026.
Greg Yang — mathematician (Tensor Programs); stepped down to informal advisory role Jan 2026.
Christian Szegedy — co-founder / researcher; left Feb 2025, founded Math Incorporated.
Kyle Kosic — founding engineer; rejoined OpenAI (mid-2024).
Guodong Zhang — founding member; departed early March 2026.
Zihang Dai — founding member (XLNet); departed early March 2026.
Toby Pohlen — founding member (later Macrohard); departed ~mid-March 2026.
Manuel Kroiss — founding engineer; reported departed.
Ross Nordeen — founding member (TPM); reported departed.
Robert Keele — legal lead; resigned.
Raghu Rao — left concurrently with Keele (~Aug 2025).
Vahid Kazemi — left to launch Nuraline (AI infra).
Roland Gavrilescu — co-founded Nuraline.
Mike Liberatore — finance chief; left ~July, now at OpenAI.
Anthony Armstrong — CFO of combined entity; departed ~April 2026.
Uday Ruddarraju — head of infrastructure; left to OpenAI.
Sulaiman Khan Ghori — MTS; left Jan 2026.
Lily Lim — staff lawyer; left Nov 2025.
Dustin Tran — post-training lead (Grok 4.1); left, now Chief Reasoning Architect at Elorian.
Hang Gao — engineer; reported departed.
Shayan Salehian, Ayush Jaiswal, Heinrich Kuttler, Norman Mu, Andrew Tulloch (→ Meta) — 2025–26 departures.
Xuechen Li — former engineer, subject of xAI trade-secret suit (not current).
Linda Yaccarino — X CEO; resigned July.

Thinking Machines Lab (66)

Name	Role/title	Level	LinkedIn	Backup	Evidence	Confidence
Mira Murati	Co-founder & CEO	Leadership	—	x.com/miramurati	theorg.com/org/thinking-machines-lab	high
Soumith Chintala	CTO (since Jan 2026; PyTorch creator, ex-Meta)	Leadership	in/soumith	x.com/soumithchintala	techcrunch.com/2026/01/14/mira-muratis-st…	high
John Schulman	Co-founder & Chief Scientist	Leadership	—	x.com/johnschulman2	thenextweb.com/news/meta-thinking-machine… ; thinkingmachines.ai/blog/lora	high
Jonathan Lachman	Founding Head of Operations (ex-OpenAI special projects)	Leadership	in/jonathan-lachman-4981b23	—	theorg.com/org/thinking-machines-lab	high
Weiheng Zhang	Founding Head of Finance (joined Jul 2025)	Leadership	in/weiheng-zhang	—	theorg.com/org/thinking-machines-lab ; linkedin.com/posts/weiheng-zhang_im-excit…	high
Nikki Sommer	Head of HR (ex-OpenAI VP HRBP)	Leadership	—	rocketreach.co/nikki-sommer-email_78938947	themarketai.com/post/thinking-machines-ta…	medium
Lauren Escher Lennon	Legal & Corporate Secretary	Leadership	in/lauren-escher-lennon-0944058	—	theorg.com/org/thinking-machines-lab	high
Mario Saltarelli	IT & Security lead (ex-OpenAI)	Leadership	in/msaltarelli	—	themarketai.com/post/thinking-machines-ta…	high
Alex Gartrell	MTS; leads Platform/Product/Core Infrastructure engineering (ex-Meta)	IC	in/alexgartrell	theorg.com/org/thinking-machines-lab/org-…	web.archive.org/web/20250302092141/https:…	high
Alexander Kirillov	Multimodality lead (ex-OpenAI Advanced Voice; SAM co-creator)	IC	in/alexander-kirillov-08110749	—	themarketai.com/post/thinking-machines-ta…	high
Brydon Eastman	Research scientist, post-training/RL (ex-OpenAI)	IC	—	—	themarketai.com/post/thinking-machines-ta…	medium
Jacob Menick	ML researcher, multimodal (led GPT-4o-mini at OpenAI)	IC	in/jacob-menick-5a277a135	scholar.google.com/citations?user=te_gpaE…	web.archive.org/web/20250302092141/https:…	high
Kurt Shuster	Research engineer, NYC (ex-DeepMind, Character.AI)	IC	in/kurtshuster1	—	themarketai.com/post/thinking-machines-ta…	high
Kyle Luther	MTS, ML researcher (ex-OpenAI)	IC	—	—	themarketai.com/post/thinking-machines-ta…	medium
Mianna Chen	MTS, product/model launches (ex-OpenAI, DeepMind), NY	IC	—	rocketreach.co/mianna-chen-email_69033147	themarketai.com/post/thinking-machines-ta…	medium
Myle Ott	ML infra / AI researcher (fairseq & FSDP creator; Character.AI founding)	IC	in/myleott	myleott.com	web.archive.org/web/20250302092141/https:…	high
Naman Goyal	Pretraining (ex-Meta Llama pretraining)	IC	in/ngoyal2707	—	web.archive.org/web/20250302092141/https:…	high
Pia Santos	Executive operations, founding team (ex-OpenAI)	IC	in/piafsantos	—	themarketai.com/post/thinking-machines-ta…	high
Randall Lin	MTS (ex-OpenAI ChatGPT; ex-X algorithm co-lead)	IC	—	—	themarketai.com/post/thinking-machines-ta…	medium
Rowan Zellers	Multimodal post-training researcher (ex-OpenAI)	IC	in/rowanzellers	rowanzellers.com	themarketai.com/post/thinking-machines-ta…	high
Sam Shleifer	MTS, inference research engineer (ex-Character.AI, DeepMind, FAIR, HF), NY	IC	in/sam-shleifer-a5307a77	rocketreach.co/sam-shleifer-email_8307228	web.archive.org/web/20250302092141/https:…	high
Stephen Roller	Pretraining / ML infra (ex-DeepMind, Character.AI, Meta), NY	IC	in/stephen-roller-38851513a	scholar.google.com/citations?user=22TE5qk…	themarketai.com/post/thinking-machines-ta…	high
Kevin Button	Security engineer, infra & data security (ex-OpenAI)	IC	—	—	themarketai.com/post/thinking-machines-ta…	medium
Luke Carlson	ML engineer (ex-Apple ML Research)	IC	—	—	themarketai.com/post/thinking-machines-ta…	medium
Chih-Kuan (Jason) Yeh	Senior research scientist, pretraining data (ex-Google Gemini, Mistral)	IC	in/chih-kuan-jason-yeh-8859378b	chihkuanyeh.github.io	themarketai.com/post/thinking-machines-ta…	high
Ruiqi Zhong	Researcher, scalable oversight/explainability (Berkeley PhD)	IC	in/ruiqi-zhong-09a533b4	ruiqi-zhong.github.io	themarketai.com/post/thinking-machines-ta…	high
Saurabh Garg	MTS, multimodal pretraining data (ex-Mistral)	IC	in/saurabh-garg-b680b5b8	—	themarketai.com/post/thinking-machines-ta…	high
Shaojie Bai	Audio-visual/multimodal researcher (ex-Meta)	IC	in/shaojie-bai	scholar.google.com/citations?user=DLVP3Pc…	themarketai.com/post/thinking-machines-ta…	high
Yifu Wang	GPU compute/communication engineer (ex-PyTorch @ Meta)	IC	—	—	themarketai.com/post/thinking-machines-ta…	medium
Horace He	Performance/kernels; blog author (ex-PyTorch compilers @ Meta)	IC	—	x.com/cHHillee ; thonking.ai/p/why-pytorch-is-an-amazing-p…	thinkingmachines.ai/blog/defeating-nondet…	high
Kevin Lu	Researcher; author of On-Policy Distillation post (ex-OpenAI)	IC	in/kzl	—	thinkingmachines.ai/blog/on-policy-distil…	high
Jeremy Bernstein	MTS, researcher; author of Modular Manifolds post (ex-MIT)	IC	—	jeremybernste.in	thinkingmachines.ai/blog/modular-manifolds	high
Rafael Rafailov	Reinforcement learning researcher (TED AI SF talk, Oct 2025)	IC	in/rafael-rafailov-1b521611b	—	newsletter.opentools.ai/p/thinking-machin…	high
Piotr Dollár	Technical staff (ex-Meta FAIR Director of Research; SAM co-author)	IC	—	—	techcrunch.com/2026/04/24/metas-loss-is-t…	high
Andrea Madotto	Research scientist, multimodal LMs (ex-Meta FAIR; joined Dec 2025)	IC	—	scholar.google.com/citations?user=JBnyLic…	techcrunch.com/2026/04/24/metas-loss-is-t…	high
James Sun	Software engineer, pre/post-training (ex-Meta, ~9 yrs)	IC	—	—	techcrunch.com/2026/04/24/metas-loss-is-t…	high
Weiyao Wang	MTS, multimodal perception (ex-Meta, 8 yrs; joined Apr 2026)	IC	—	—	techcrunch.com/2026/04/24/metas-loss-is-t…	high
Kenneth Li	MTS, researcher (Harvard PhD; ex-Meta; joined Apr 2026)	IC	—	—	techcrunch.com/2026/04/24/metas-loss-is-t…	high
Neal Wu	MTS (ex-Cognition founding member; 3x IOI gold; joined early 2026)	IC	in/nealwu	—	linkedin.com/posts/nealwu_i-joined-thinki…	high
Jeffrey Tao	MTS, engineer (ex-Waymo, Windsurf, OpenAI)	IC	—	—	techcrunch.com/2026/04/24/metas-loss-is-t…	high
Muhammad Maaz	Researcher (ex-Anthropic research fellowship)	IC	—	—	techcrunch.com/2026/04/24/metas-loss-is-t…	high
Erik Wijmans	Researcher (ex-Apple; Georgia Tech PhD)	IC	in/erik-wijmans-0a226814b	wijmans.xyz	techcrunch.com/2026/04/24/metas-loss-is-t…	high
Liliang Ren	Researcher, long-sequence modeling (ex-Microsoft; joined Mar 2026)	IC	in/liliang-ren-ba0529181	scholar.google.com/citations?user=9MBMglQ…	techcrunch.com/2026/04/24/metas-loss-is-t…	high
Kenny Yu	MTS, research (ex-Meta TBD lab; Harvard)	IC	in/kenny-yu-aa3a9a3a	—	businessinsider.com/thinking-machines-lab…	high
Luke Drago	MTS (Workshop Labs co-founder; joined Apr 2026 via acqui-hire)	IC	—	matsprogram.org/stream/drago	theinformation.com/briefings/thinking-mac…	high
Rudolf Laine	MTS (Workshop Labs co-founder; joined Apr 2026 via acqui-hire)	IC	—	matsprogram.org/stream/drago	theinformation.com/briefings/thinking-mac…	high
Danqi Chen	Member of Technical Staff (concurrently Assoc. Prof., Princeton)	IC	—	x.com/danqi_chen	digg.com/u/x/thinkymachines (X bio: "MoTS @thinkymachines")	high
Guangxuan Xiao	MTS (MIT PhD; StreamingLLM author)	IC	in/xgx	guangxuanx.com	in/xgx	high
Songlin Yang	MTS, LM architectures (MIT PhD; flash-linear-attention)	IC	in/songlin-yang-b8a69728b	sustcsonglin.github.io	in/songlin-yang-b8a69728b	high
Xi Victoria Lin	Research scientist, native multimodal intelligence (ex-Meta FAIR)	IC	in/victorialinml	victorialin.org	victorialin.org	high
Yijia Shao	MTS (Stanford PhD)	IC	in/shaoyj	—	in/shaoyj	medium
Luke Wood	MTS (ex-Google Keras)	IC	in/luke-wood-ml	—	in/luke-wood-ml	medium
Tianyi Zhang	MTS, Tinker (Stanford PhD candidate)	IC	in/tianyi-zhang-843a64120	—	in/tianyi-zhang-843a64120	medium
Rajat Goel	MTS (San Jose)	IC	in/rajatgoel2010	—	in/rajatgoel2010	high
Jenya L.	MTS (SF Bay Area)	IC	in/jenya-l	—	in/jenya-l	medium
Jamie Cahill	MTS (New York)	IC	in/james-cahill-093a9582	—	in/james-cahill-093a9582	high
Liyuan (Lucas) Liu	MTS (ex-Microsoft Research)	IC	in/liyuanlucasliu	—	in/liyuanlucasliu	high
Tianle Li	MTS (ex-UC Berkeley / LMSYS)	IC	in/tianleli	—	in/tianleli	high
Shizhe Diao	MTS (ex-NVIDIA researcher)	IC	in/shizhediao	—	in/shizhediao	high
Deepak Gopinath	MTS (New York)	IC	in/deepakgopinath	—	in/deepakgopinath	high
Riley Shanahan	Staff (SF Bay Area; role not stated)	IC	in/rileyshanny	—	in/rileyshanny	medium
Jeff Hanson	Engineer (SF; recently joined)	IC	in/jshanson7	—	in/jshanson7	medium
Brandon Trabucco	MTS (CMU ML PhD)	IC	in/brandontrabucco	—	in/brandontrabucco	medium
Daniel Xu	Engineer (SF)	IC	in/daniel-xu-42b73289	—	in/daniel-xu-42b73289	medium
Clare Birch	Staff (role not stated)	IC	in/clarebirch42	—	in/clarebirch42	medium
Xiangfeng Zhu	MTS (incoming/started Aug 2026; UW PhD)	IC	—	xzhu27.me	xzhu27.me	medium

Caveats & departures excluded (26)

Barret Zoph — co-founder & CTO; fired Jan 14, 2026 ("unethical conduct"), immediately rejoined OpenAI. (https://techcrunch.com/2026/01/14/mira-muratis-startup-thinking-machines-lab-is-losing-two-of-its-co-founders-to-openai)
Luke Metz — co-founder; returned to OpenAI, Jan 2026. (same TechCrunch)
Sam Schoenholz — leading researcher; returned to OpenAI, Jan 2026. (same TechCrunch)
Lilian Weng — co-founder; resigned citing health ~July 28, 2026, rejoined OpenAI days later (recursive self-improvement work). VERY RECENT — many older pages still list her as current. (https://www.businessinsider.com/lilian-weng-returns-to-openai-after-leaving-thinking-machines-lab-2026-7)
Andrew Tulloch — co-founder; left for Meta Superintelligence Labs, Oct 2025 (reported ~$1.5B package). (https://thenextweb.com/news/meta-thinking-machines-lab-talent-raid)
Joshua Gross — founding engineer (built Tinker); joined Meta Superintelligence Labs, Mar 2026. (https://thenextweb.com/news/meta-thinking-machines-lab-talent-raid)
Devendra Chaplot — founding member (ex-Mistral); left for xAI, Mar 2026. (https://thenextweb.com/news/meta-thinking-machines-lab-talent-raid)
Lia Guy — AI researcher; returned to OpenAI, Jan 2026. (https://inkl.com/news/behind-the-defections-from-mira-murati-s-thinking-machines-money-compute-constraints-and-a-lack-of-clarity-on-products-and-business-model)
Ian O'Connell — founding infra engineer; left Jan 2026. Destination conflicts across reports (OpenAI per one timeline; Meta per others) — departed either way.
Joel Parish (reported in some press as "Jolene Parish") — founding security member; left ~Feb 2026 for OpenAI. (https://e.vnexpress.net/news/tech/enterprises/12b-ai-startup-thinking-machines-lab-loses-2-founding-members-to-meta-5046105.html)
Noah Shpak — founding ML engineer; to Meta, ~Mar 2026. (vnexpress link above)
Christian Gibson — founding infra engineer (ex-OpenAI supercomputing); to Meta, ~Mar 2026. (vnexpress link above)
Yinghai Lu — founding ML systems engineer; to Meta, Apr 2026. (https://africa.businessinsider.com/news/meta-quietly-hired-two-more-founding-members-from-mira-muratis-thinking-machines-lab/4m7c85l)
Mark Jen — founding generalist/infra; to Meta, Apr 2026. (same Business Insider)
Andrew Gu — PyTorch/pretraining-efficiency engineer; LinkedIn now lists OpenAI (https://www.linkedin.com/in/andrew-gu-961768216/) — departed, medium confidence on timing.
Advisers, not employees: Bob McGrew, Alec Radford (advisers per launch materials/Wikipedia; McGrew's "chief research officer" title in some aggregators refers to his old OpenAI role).
Headcount reference points: 42-person founding team, 13 of whom had left by May 2026 (Business Insider review of LinkedIn); total headcount "~140" (TechCrunch, Apr 2026) to "over 150" (BI, May 2026). This census (~67 rows) therefore covers roughly 40-45% of the company; most missing rows are non-public ICs.
BI (Jan 2026) reported "another nine or so" employees had decamped to OpenAI or held offers — not all names are public, so a few "medium" founding-team rows (e.g., Randall Lin, Kyle Luther, Kevin Button, Mianna Chen, Yifu Wang, Brydon Eastman, Luke Carlson, Nikki Sommer) rest on the late-2025 team page plus absence from departure reporting.
Stephen Chen appeared on the Feb 2025 launch team list but not on the later expanded team page and has no 2026 evidence either way — omitted from the table as status-unknown.
Tianyi Zhang: one Business Insider-derived extraction grouped him with Meta hires, but his LinkedIn still shows Thinking Machines Lab (Tinker) — kept as current, medium confidence.
Danqi Chen appears to be part-time/dual-affiliated (Princeton professor + "MoTS @thinkymachines" X bio).
Xiangfeng Zhu lists an Aug 2026 MTS start date — effectively just joined.
Workshop Labs was acqui-hired Apr 2026 (founders Luke Drago, Rudolf Laine included above); other Workshop staff (e.g., Addie Foote) may also have joined but are unverified.
Team-page bio snapshot source (themarketai.com mirror) is stale on departures — used only for roles, never as evidence of currency.
"Backup profile" column: X handles for Murati/Schulman/Chintala/He/Chen are their well-known public accounts; Google Scholar/personal sites used where LinkedIn was not indexed.
Since Feb 2026 the company has shipped TML-Interaction-Small (May 2026) and the open-weight model Inkling (Jul 2026), under leadership of Murati (CEO), Chintala (CTO), Schulman (Chief Scientist).

Reflection AI (24)

Name	Role/title	Level	LinkedIn	Backup	Evidence	Confidence
Misha (Michael) Laskin	Co-Founder & CEO	Leadership	—	@real_ioannis co-founder; theorg.com/org/reflectionai	reflection.ai ; theorg.com/org/reflectionai	high
Ioannis Antonoglou	Co-Founder, President & CTO	Leadership	—	sotwe.com/real_ioannis (X @real_ioannis)	theorg.com/org/reflectionai	high
Irwan Bello	Founding Team / Post-training Lead	Leadership	in/irwanb	irwanbello.github.io	theorg.com/org/reflectionai ; irwanbello.github.io	high
Joe (Joseph) Spisak	VP of Product & Head of Open Source	Leadership	in/jspisak	—	chetantekur.substack.com/p/why-i-joined-r…	high
Drayton Wade	VP Operations	Leadership	—	—	theorg.com/org/reflectionai	high
Adam L.	General Counsel	Leadership	—	—	theorg.com/org/reflectionai	high
Behrooz Ghorbani	Leading Reinforcement Learning	Leadership	—	sotwe.com/_ghorbani (X @_ghorbani)	ngntipkolamrenang.twstalker.com/bhutanisa…	medium
Max Rigby	Strategy & Operations Lead	Leadership	—	—	thecompanycheck.com/company/b/reflectiona…	medium
Helen T.	Executive Assistant to the CEO	IC (Ops)	—	—	theorg.com/org/reflectionai	high
Brandon Amos	Member of Technical Staff (ex-Meta FAIR)	IC	—	bamos.github.io	edtechinnovationhub.com/news/brandon-amos…	high
Alex (Oleksandr) Polozov	Member of Technical Staff	IC	—	alexpolozov.com ; X @Skiminok	alexpolozov.com/blog/reflection	high
Jessica Hamrick	Member of Technical Staff (ex-DeepMind)	IC	—	jesshamrick.com	jesshamrick.com	high
Aakanksha Chowdhery	Member of Technical Staff (ex-Google)	IC	—	achowdhery.com	achowdhery.com	high
Mingrui Zhang	Member of Technical Staff	IC	in/zhangmr	drustz.github.io	drustz.github.io ; theorg.com/org/reflectionai/org-chart/min…	high
Zijian Hu	Member of Technical Staff	IC	in/zijianhu	zijianhu.com	zijianhu.com	high
Risto Vuorio	Member of Technical Staff (ex-Oxford)	IC	—	vuoristo.github.io	vuoristo.github.io	high
Xianjun Yang	Member of Technical Staff (ex-UCSB)	IC	—	xianjun-yang.github.io	xianjun-yang.github.io	high
Piyush Prasad	Member of Technical Staff	IC	in/piyushsprasad	—	thecompanycheck.com/company/b/reflectiona…	medium
Nancy Hung	Member of Technical Staff / Research Engineer	IC	—	—	thecompanycheck.com/company/b/reflectiona… ; theorg.com/org/reflectionai/org-chart/nan…	medium
Arnaud Stiegler	Member of Technical Staff	IC	—	—	thecompanycheck.com/company/b/reflectiona…	medium
Jeremy Berman	Post-training Researcher	IC	—	—	twit.tv/posts/transcripts/intelligent-mac…	medium
Ben Ellis	Researcher	IC	—	—	sotwe.twstalker.com/FLAIR_Ox	medium
Zach Wentz	Member of Technical Staff	IC	—	—	ngntipkolamrenang.twstalker.com/bhutanisa…	medium
Charlie Deck	AI Researcher and Builder	IC	—	charliedeck.com	charliedeck.com	medium

Caveats & departures excluded (8)

Roster size vs. public evidence. Reflection AI is likely 50-150 people, but the lab is unusually private: no public team page (reflection.ai/team and /about return no names; /careers routes to Ashby job listings only). Aggregators cap the visible roster: TheOrg lists ~6, thecompanycheck ~5 ICs. The 24 rows above are essentially every individual with 2025-26 public evidence. Reaching 40-60 was not possible from public sources without fabricating.
Name-collision risk. "Reflection AI" collides with other "Reflection"-named entities (Reflection.ai the older YC dev-tools co., "Reflective AI," etc.). Rows above were kept only when AI-lab context matched (DeepMind/Google/Meta/Oxford RL background, MTS titles, coding-agent/open-model work). Generic LinkedIn URL searches returned heavy noise (multiple "Wade"/"Hung"/"Zhang" false positives) and were discarded; only high-signal profile URLs are listed.
Partial identities. "Adam L." and "Helen T." appear only with truncated surnames on TheOrg — likely a privacy setting; full names not recoverable from public sources.
Lower-confidence (medium) rows rest on a single aggregator (thecompanycheck) or a single podcast/transcript mention rather than a self-reported bio; titles for these may be approximate. Nancy Hung, Piyush Prasad, Arnaud Stiegler come from thecompanycheck's employee list; Jeremy Berman, Ben Ellis, Zach Wentz, Behrooz Ghorbani from talk/podcast/social mentions.
LinkedIn coverage is thin (7 of 24 rows) because LinkedIn profiles are gated to search engines; most ICs were confirmed via personal academic/research websites and X instead. Additional profile URLs likely exist but could not be verified without collision risk.
Board members (NOT employees, excluded from table): Max Gazor (CRV), Stephanie Zhan (Sequoia) — appear on funding coverage as board members/investors.
False positives filtered out: Demis Hassabis and Shane Legg (surfaced as "founding engineers" but are DeepMind founders, not Reflection); Dr. Richard W. Burch, Yana Santanago, Narine Emdjian, Andrew Brown (unrelated/aggregator noise); Yu Bai, Sam Wiseman (surfaced but affiliated with OpenAI/other labs, not confirmed Reflection).
Open roles (not counted): Reflection is actively hiring via jobs.ashbyhq.com/reflectionai (MTS - Data Platform, Evaluations, Post-Training/Eval ML Engineer, etc.), implying the true headcount exceeds the named roster.

Safe Superintelligence (SSI) (5)

Name	Role/title	Level	LinkedIn	Backup	Evidence	Confidence
Ilya Sutskever	Co-founder & CEO (formerly Chief Scientist); became CEO July 2025	Leadership	(not publicly listed)	Wikipedia; extensive press	en.wikipedia.org/wiki/Safe_Superintellige…. ; cnbc.com/2025/07/03/ilya-sutskever-is-ceo…	high
Daniel Levy	Co-founder & President; led OpenAI optimization team ("principal scientist")	Leadership	(not publicly listed)	Wikipedia; Reuters	reuters.com/technology/artificial-intelli…	high
Yair Carmon (Dr.)	Researcher / senior research engineer, Tel Aviv team; also senior lecturer at Tel Aviv University CS (Stanford PhD, ML/optimization); helping recruit further researchers	IC	(not publicly listed)	TAU faculty page; WEN AGI roster	en.globes.co.il/en/article-ssi-israel-hir… ; observer.com/2025/03/ilya-sutskever-30b-a…	high
Yaron Brodsky	Researcher / software developer, Tel Aviv team; ex-Google (creative/photo-editing AI)	IC	(not publicly listed)	—	en.globes.co.il/en/article-ssi-israel-hir… ; observer.com/2025/03/ilya-sutskever-30b-a…	high
Nitzan Tor	Researcher / computer engineer, Tel Aviv team; Technion math grad, ex-Final (algo-trading)	IC	(not publicly listed)	—	en.globes.co.il/en/article-ssi-israel-hir… ; observer.com/2025/03/ilya-sutskever-30b-a…	high

Caveats & departures excluded (6)

Daniel Gross — co-founder; left SSI June 29, 2025 to join Meta Superintelligence Labs. Sutskever became CEO, Levy President. (https://en.wikipedia.org/wiki/Safe_Superintelligence_Inc.)
Shahar Papini — one of the first-named Tel Aviv engineers (Globes, March 2025), but has since LEFT SSI to co-found an AI startup in Tel Aviv ("Attestable"). Reported by Calcalist ("SSI engineer walks away") and Globes ("Former SSI engineer founds AI startup in Tel Aviv"), 2026. Excluded as a current employee. (https://calcalistech.com/ctechnews/article/sjik6rzdwl ; en.globes.co.il/en/article-1001534082)
Nat Friedman — frequently name-appears in SSI coverage but is an INVESTOR (via NFDG, the investment partnership he ran with Daniel Gross), not an employee. He also joined Meta. Excluded.
SSI SCHÄFER (a German logistics/warehousing company) — exa.ai "SSI executives" directory returned its execs (Diana Allen, Peter Edelmann, Armin Vogel, Heather Dunn, Mark Blossom, Mark Pinckard, Jason Huff, Rolf Hofmann, Mark Walker, etc.). NONE are SSI (Sutskever) employees.
PrivCo / registered-agent filings — names like "Don Aday" (CEO) and "Angela McIsaac" (Secretary) appear in corporate-registry scrapes and are not credible as SSI research/leadership staff.
Other "safe superintelligence" labs use the phrase as a mission statement (Lexsi Labs, Krim/KrimOS) and are unrelated companies.

Periodic Labs (43)

Name	Role/title	Level	LinkedIn	Backup	Evidence	Confidence
William (Liam) Fedus	Co-founder & CEO (ex-OpenAI VP Post-training, ChatGPT co-creator)	Leadership	—	x.com/LiamFedus	periodic.com ; techcrunch.com/2025/09/30/former-openai-a…	high
Ekin Dogus Cubuk	Co-founder (ex-Google DeepMind, GNoME co-author)	Leadership	—	x.com/ekindogus	periodic.com ; techcrunch.com/2025/09/30/former-openai-a…	high
Kate Lauterbach	Head of Operations, founding team (ex-Google DeepMind Program Lead)	Leadership	—	—	periodic.com ; davidtsong.com/periodic-labs	high
Rishabh Agarwal	Research Scientist / MTS (ex-Meta Superintelligence Labs; ex-Google DeepMind)	IC	—	agarwl.github.io ; x.com/agarwl_	periodic.com ; industrywired.com/startups/meet-rishabh-a…	high
Alexandre Passos	Founding team, research/engineering (ex-OpenAI; ex-Google 9y)	IC	—	—	periodic.com ; davidtsong.com/periodic-labs	high
Dzmitry Bahdanau	Researcher (neural-attention co-inventor; ex-ServiceNow Research)	IC	—	rizar.github.io	periodic.com ; davidtsong.com/periodic-labs	high
Matthew (Matt) Horton	Researcher (ex-Microsoft Research MatterGen; ex-Berkeley Lab Materials Project)	IC	—	—	periodic.com ; davidtsong.com/periodic-labs	high
Costa Huang	Researcher, RL (CleanRL creator; ex-AI2/Hugging Face)	IC	—	github.com/vwxyzjn	periodic.com ; davidtsong.com/periodic-labs	high
Vincent Moens	Founding team, RL infrastructure (TorchRL creator; ex-Meta 4y)	IC	—	github.com/vmoens ; x.com/VincentMoens	periodic.com ; davidtsong.com/periodic-labs	high
Eric Toberer	Materials scientist (professor, Colorado School of Mines)	IC	—	—	periodic.com ; dailydropout.fyi/startup/periodic	high
Muratahan Aykol	Research Scientist, AI for materials (ex-Google DeepMind Staff RS; ex-Toyota Research Institute)	IC	—	—	periodic.com ; davidtsong.com/periodic-labs	high
Gowoon Cheon	Researcher (ex-Google Research; Stanford PhD Applied Physics)	IC	—	—	periodic.com ; davidtsong.com/periodic-labs	high
Wei Chen	Engineer, employee #2 (ex-TikTok Tech Lead; ex-Twitter; Brookhaven National Lab)	IC	—	—	periodic.com ; davidtsong.com/periodic-labs	high
Xiang Fu	Researcher (ex-Meta FAIR; MIT PhD)	IC	—	—	periodic.com ; davidtsong.com/periodic-labs	high
Rohan Pandey	Member of Technical Staff (ex-OpenAI)	IC	—	x.com/khoomeik ; github.com/KhoomeiK	periodic.com ; davidtsong.com/periodic-labs	high
Reiichiro Nakano	Member of Technical Staff (ex-OpenAI 5y)	IC	—	—	periodic.com ; davidtsong.com/periodic-labs	high
Xander Dunn	Engineer (ex-Jasnah, Ava Labs, Apple)	IC	—	x.com/xanderai	periodic.com ; davidtsong.com/periodic-labs	high
Janosh Riebesell	Researcher (ex-Radical AI; Cambridge PhD; pymatviz/matterviz author)	IC	—	janosh.dev ; github.com/janosh	periodic.com ; davidtsong.com/periodic-labs	high
Sam Cross	Lab automation engineering, founding team (ex-Lila Sciences Sr Principal Engineer; ex-Samsung; MIT PhD)	IC	—	—	periodic.com ; davidtsong.com/periodic-labs	high
Naveen Menon	Lab/production engineering (ex-Tesla Staff Production Engineer, cathode materials)	IC	—	—	periodic.com ; davidtsong.com/periodic-labs	high
Elsa Cong	Operations (ex-EA; ex-Visa)	IC	—	—	periodic.com ; davidtsong.com/periodic-labs	high
Emirhan Kurtulus	Member of Technical Staff, employee #1 (ex-HyperbeeAI; Stanford NLP)	IC	—	—	periodic.com ; davidtsong.com/periodic-labs	high
Killian Sheriff	Member of Technical Staff (intern #1, promoted; MIT PhD Materials Science)	IC	—	github.com/killiansheriff	periodic.com ; davidtsong.com/periodic-labs	high
Mansheej Paul	Team member (research)	IC	—	—	periodic.com (team list)	high
Abhijeet Gangan	Team member (research)	IC	—	—	periodic.com (team list)	high
Joe Checkelsky	Team member (MIT condensed-matter physics professor)	IC	—	—	periodic.com (team list)	high
Stephan Hoyer	Senior engineer (ex-Google 10y Sr Staff SWE; Xarray creator; joined Mar 2026)	IC	—	github.com/shoyer ; x.com/shoyer	davidtsong.com/periodic-labs	medium
Grace Pan	Visiting scientist (Harvard PhD Physics; ex-UC Berkeley)	IC	—	—	davidtsong.com/periodic-labs	medium
Minyong Han	Materials scientist (ex-Stanford postdoc, PLD; MIT PhD, MBE thin films)	IC	—	—	davidtsong.com/periodic-labs	medium
Dominik Kufel	Researcher (intern #2; Harvard, AI for quantum materials)	IC	—	—	davidtsong.com/periodic-labs	medium
Christopher Rom	Materials scientist (ex-NREL, nitride thin films)	IC	—	—	davidtsong.com/periodic-labs	medium
Daniel Chica	Materials scientist (ex-Columbia postdoc; Northwestern PhD Chemistry)	IC	—	—	davidtsong.com/periodic-labs	medium
Christie Koay	Materials scientist (ex-Princeton postdoc; Columbia PhD)	IC	—	—	davidtsong.com/periodic-labs	medium
Hilary Johnson	Mechanical/precision engineering (ex-Lawrence Livermore; MIT PhD)	IC	—	—	davidtsong.com/periodic-labs	medium
Nicholas Bergantz	Robotics engineering (20y robotics background)	IC	—	—	davidtsong.com/periodic-labs	medium
Manik Singhal	GPU/compute infrastructure (ex-Crusoe; ex-d-Matrix)	IC	—	—	davidtsong.com/periodic-labs	medium
Jordan S. (surname not public)	Robotics technician (ex-OpenAI robotics; ex-Tesla)	IC	—	—	davidtsong.com/periodic-labs	medium
Dennis van der Staay	Research engineer (ex-Meta 6y; MIT EE)	IC	—	—	davidtsong.com/periodic-labs	medium
Mia Johansson	Software engineer (ex-SpaceX 3y)	IC	—	—	davidtsong.com/periodic-labs	medium
Jun Feng	Process engineering (ex-Applied Materials Director, PECVD)	IC	—	—	davidtsong.com/periodic-labs	medium
Florian Göltl	Researcher (ex-xAI; ex-University of Arizona professor)	IC	—	—	davidtsong.com/periodic-labs	medium
Peiwen Ren	MTS (intern, promoted; Northwestern/QuesTek)	IC	—	—	davidtsong.com/periodic-labs	medium
Aryan Suri	Data engineer (ex-Tesla 3y)	IC	—	—	davidtsong.com/periodic-labs	medium

Discovery Loop (4)

Name	Role/title	Level	LinkedIn	Backup	Evidence	Confidence
Jeff Dean	Co-founder & CEO (ex-Google Chief Scientist, 27y; Google Brain co-founder; Gemini co-tech-lead)	Leadership	—	x.com/JeffDean	wired.com/story/jeff-dean-google-discover… ; geekwire.com/2026/the-startup-idea-that-c…	high
Sanjay Ghemawat	Co-founder (ex-Google Senior Fellow; MapReduce/Bigtable/GFS/Spanner co-creator)	Leadership	—	x.com/Sanjay_Ghemawat	wired.com/story/jeff-dean-google-discover… ; qz.com/jeff-dean-google-chief-scientist-d…	high
Oriol Vinyals	Co-founder (ex-Google DeepMind VP of Research; Gemini co-tech-lead; AlphaStar)	Leadership	—	x.com/OriolVinyalsML	wired.com/story/jeff-dean-google-discover… ; geekwire.com/2026/the-startup-idea-that-c…	high
Quoc V. Le	Co-founder (ex-Google Brain co-founder; seq2seq, AutoML, chain-of-thought work)	Leadership	—	x.com/quocleix	wired.com/story/jeff-dean-google-discover… ; businessinsider.com/jeff-dean-new-startup…	high

Caveats & departures excluded (7)

LinkedIn URLs unavailable through this pipeline. Individual linkedin.com/in profile pages are not present in the Keenable search index (only LinkedIn company pages, pulse articles, and job posts surfaced). Rather than guess profile slugs, the LinkedIn column is left blank; verified X/GitHub/personal sites are provided as backup profiles for 12 people. Manual LinkedIn lookup by name + "Periodic Labs" will resolve most of the rest — the davidtsong.com memo confirms all 39 Periodic profiles exist on LinkedIn.
Periodic Labs confidence split. The 26 "high" rows are named on periodic.com's own team list (fetched 2026-08-09), most with independent press or memo corroboration. The 17 "medium" rows come from a single detailed third-party source (davidtsong.com/periodic-labs, an investment-memo-style page claiming all data from direct LinkedIn scraping on 2026-03-25). That source is internally consistent and matches press on every overlapping name, but each medium row rests on it alone.
Headcount reconciliation. davidtsong.com counted 39 current employees as of Mar 2026; periodic.com's public team list shows 26 names. The union here is 43 rows; a few periodic.com names (Mansheej Paul, Abhijeet Gangan, Joe Checkelsky) don't appear in the memo's narrative and a few memo names may have joined after the site list was last updated. Actual current headcount is likely 39-45 and growing (18 open roles as of Mar 2026; a Summer 2026 intern posting is live on LinkedIn).
Excluded from Periodic staff table: Michael Zhang (known departure per the memo); advisory board (Carolyn Bertozzi, Mercouri Kanatzidis, Steven Kivelson, Zhi-Xun Shen, Chris Wolverton — Stanford/Northwestern professors listed on periodic.com as advisors); Tal Broda (advisor, ex-OpenAI VP Compute); investors mentioned alongside the team (Jeff Bezos, Eric Schmidt, Jeff Dean, Elad Gil, Peter Deng, Anjney Midha). Rishabh Agarwal's rliable paper co-authors (Max Schwarzer, Jesse Farebrother, etc.) appeared in search extraction but are NOT Periodic staff and were excluded.
Ambiguity notes. Eric Toberer and Joe Checkelsky are active professors (Colorado School of Mines, MIT) — their engagement may be part-time/dual-affiliation, but both appear on periodic.com's team list, not its advisor list. "Rishabh Agrawal" spelling variants in Indian press refer to the same Rishabh Agarwal; some press loosely called him a "co-founder" but Periodic's own materials describe two co-founders (Fedus, Cubuk). "Jordan S." surname is not public.
Discovery Loop is founders-only by design. Announced 4 days before this census (Aug 5, 2026). Wired reported they had not yet hired staff or rented office space; no "joining Discovery Loop" announcements were found through Aug 9. Jordan Jacobs (Radical Ventures managing partner) joins the board — investor, not employee. Sanjay Ghemawat is famously low-profile; his X handle comes from Jeff Dean's announcement post, and he may have no active LinkedIn. Watch @DiscoLoopAI and Google-departure announcements for first hires; the Wired piece notes hiring will likely pull further people from Google.
Generic-name collision hazard confirmed: searches for "Discovery Loop" and for individual names surfaced unrelated entities (Loop AI, Loop supply-chain, a different Rishabh Agarwal who is CEO of Peer Robotics, ELSA Corp for "Elsa Cong"). All rows above were validated in Jeff-Dean-lab or Periodic-Labs context.