Which AI researchers moved between frontier labs since 2025? For each move, list the researcher, the lab they left, where they went, and the month.
After collapsing duplicate reports and lab aliases, the evidence yields 61 distinct researcher moves between frontier-model labs from January 2025 through September 2026, each corroborated on at least two independent hosts. This is a best-effort census of publicly reported moves, not a complete personnel registry.
Hover or tap a dot for the researcher, route and source. Dots with a dark ring mark researchers who moved more than once in the period.
| Researcher | Left | Joined | Month | Hosts | Specialty | Source |
|---|---|---|---|---|---|---|
| Andrew Tulloch | OpenAI | Thinking Machines Lab | February 2025 | 8 | co-founder and leading researcher | lindaikejisblog.com |
| Barrett Zoph | OpenAI | Thinking Machines Lab | February 2025 | 28 | ChatGPT co-creator | reuters.com |
| John Schulman | Anthropic | Thinking Machines Lab | February 2025 | 16 | AI alignment | theoutpost.ai |
| Jonathan Lachman | OpenAI | Thinking Machines Lab | February 2025 | 6 | Former head of special projects | theverge.com |
| Lilian Weng | OpenAI | Thinking Machines Lab | February 2025 | 11 | Vice president of safety | bloomberg.com |
| Luke Metz | OpenAI | Thinking Machines Lab | February 2025 | 9 | meta-learning and optimization algorithms | theoutpost.ai |
| Marco Tagliasacchi | Google DeepMind | Microsoft AI | February 2025 | 3 | AI audio and podcasting tools (built “Audio Overviews” for NotebookLM) and AI agents (w… | fortune.com |
| Matthias Minderer | Google DeepMind | Microsoft AI | February 2025 | 3 | Vision capabilities — machine learning to understand images and video | fortune.com |
| Mira Murati | OpenAI | Thinking Machines Lab | February 2025 | 21 | CTO (chief technology officer) | techcrunch.com |
| Rob Fergus | Google DeepMind | Meta | May 2025 | 2 | Head of AI lab (artificial intelligence research) | bloomberg.com |
| Alexander Kolesnikov | OpenAI | Meta | June 2025 | 67 | researcher on Meta's "superintelligence" team | techcrunch.com |
| Hongyu Ren | OpenAI | Meta | June 2025 | 34 | AI researcher | reuters.com |
| Jack Rae | Google DeepMind | Meta | June 2025 | 23 | AI researcher | reuters.com |
| Jiahui Yu | OpenAI | Meta | June 2025 | 35 | AI researcher | reuters.com |
| Lucas Beyer | OpenAI | Meta | June 2025 | 69 | computer vision AI | techcrunch.com |
| Shengjia Zhao | OpenAI | Meta | June 2025 | 36 | AI researcher | reuters.com |
| Shuchao Bi | OpenAI | Meta | June 2025 | 34 | AI researcher | reuters.com |
| Trapit Bansal | OpenAI | Meta | June 2025 | 35 | AI reasoning models | techcrunch.com |
| Xiaohua Zhai | OpenAI | Meta | June 2025 | 68 | researcher on Meta's "superintelligence" team | wsj.com |
| Allan Jabri | OpenAI | Meta | July 2025 | 4 | multimodal AI | markets.businessinsider.com |
| Angela Fan | Meta | OpenAI | July 2025 | 2 | AI research | wired.com |
| Aurko Roy | Meta | Microsoft AI | July 2025 | 2 | wired.com | |
| Daniel Gross | Safe Superintelligence | Meta | July 2025 | 10 | AI products for the superintelligence group | nextomoro.com |
| Huiwen Chang | OpenAI | Meta | July 2025 | 5 | Multimodal models (co-creator of GPT-4o); invented MaskGIT and Muse text-to-image archi… | reuters.com |
| Hyun Won Jeong | OpenAI | Meta | July 2025 | 2 | mezha.media | |
| Hyung Won Chung | OpenAI | Meta | July 2025 | 47 | reasoning and agents | link.theverge.com |
| Jason Wei | OpenAI | Meta | July 2025 | 51 | o1 and deep research models | link.theverge.com |
| Ji Lin | OpenAI | Meta | July 2025 | 5 | Advanced multimodal reasoning systems and Operator reasoning stack, OpenAI's computer-u… | fortune.com |
| Joel Pobar | Anthropic | Meta | July 2025 | 10 | Infrastructure and inference pipelines for large language models | fortune.com |
| Johan Schalkwyk | Google DeepMind | Meta | July 2025 | 5 | Speech AI; Voice Lead at Meta Superintelligence Labs | reuters.com |
| Lu Liu | OpenAI | Meta | July 2025 | 4 | multimodal AI | markets.businessinsider.com |
| Mike Dalton | xAI | OpenAI | July 2025 | 2 | infrastructure engineering | wired.com |
| Pei Sun | Google DeepMind | Meta | July 2025 | 9 | Post-training, coding and reasoning for Gemini | fortune.com |
| Uday Ruddarraju | xAI | OpenAI | July 2025 | 2 | infrastructure engineering | wired.com |
| Yuanzhi Li | OpenAI | Meta | July 2025 | 2 | researcher | theoutpost.ai |
| Avi Verma | Meta | OpenAI | August 2025 | 4 | researcher | wired.com |
| Ethan Knight | Meta | OpenAI | August 2025 | 4 | AI researcher | wired.com |
| Joelle Pineau | Meta | Cohere | August 2025 | 2 | AI research leadership (former VP of AI research overseeing Meta’s fundamental AI resea… | techcrunch.com |
| Yang Song | OpenAI | Meta | September 2025 | 4 | Research principal; led the strategic explorations team at OpenAI, with research focuse… | wired.com |
| Andrew Tulloch | Thinking Machines Lab | Meta | October 2025 | 87 | star AI researcher | wsj.com |
| Soumith Chintala | Meta | Thinking Machines Lab | November 2025 | 6 | creator of PyTorch | justreadthis.ai |
| Barrett Zoph | Thinking Machines Lab | OpenAI | January 2026 | 52 | co-founder and CTO of Thinking Machines Lab | theverge.com |
| Ian O'Connell | Thinking Machines Lab | OpenAI | January 2026 | 2 | infrastructure engineer | brendonbeebe.substack.com |
| Lia Guy | Thinking Machines Lab | OpenAI | January 2026 | 7 | AI researcher | winbuzzer.com |
| Luke Metz | Thinking Machines Lab | OpenAI | January 2026 | 48 | Thinking Machines cofounder | theverge.com |
| Samuel Schoenholz | Thinking Machines Lab | OpenAI | January 2026 | 37 | researcher | theverge.com |
| Ruoming Pang | Meta | OpenAI | February 2026 | 2 | oversaw artificial intelligence infrastructure for Meta's Superintelligence Labs | reuters.com |
| Joshua Gross | Thinking Machines Lab | Meta | March 2026 | 2 | Founding engineer at Thinking Machines Lab who built Tinker, the startup’s core API pro… | thenextweb.com |
| Matt Botvinick | Google DeepMind | Anthropic | March 2026 | 4 | Studying how AI will impact the legal system | on.theverge.com |
| Yann LeCun | Meta | AMI Labs | March 2026 | 2 | World models research (building world models as an alternative to current LLM approaches) | wenagi.com |
| Zoë Hitzig | OpenAI | Anthropic | March 2026 | 2 | connecting economic research to model training | substack.com |
| Weiyao Wang | Meta | Thinking Machines Lab | April 2026 | 2 | multimodal perception systems and open-world segmentation, including SAM3D | techcrunch.com |
| Alexander Pritzel | Google DeepMind | Anthropic | June 2026 | 5 | AlphaFold researcher (protein structure prediction) | techtimes.com |
| Arthur Conmy | Google DeepMind | Anthropic | June 2026 | 2 | Train-time alignment (post-training alignment, mechanistic interpretability) | explainx.ai |
| John Jumper | Google DeepMind | Anthropic | June 2026 | 22 | Senior research scientist and co-creator of AlphaFold | reuters.com |
| Jonas Adler | Google DeepMind | Anthropic | June 2026 | 5 | AlphaFold researcher (protein structure prediction) | ft.com |
| Noam Shazeer | Google DeepMind | OpenAI | June 2026 | 10 | Gemini co-lead | techtimes.com |
| Lilian Weng | Thinking Machines Lab | OpenAI | July 2026 | 47 | AI safety research; leading a top-level team working to accelerate internal research, i… | theverge.com |
| Barrett Zoph | OpenAI | Google DeepMind | August 2026 | 4 | vice president of research, with RL and post-training expertise | usanewsgroup.com |
| Luke Metz | OpenAI | Meta | August 2026 | 2 | core machine learning research; will report directly to Alexandr Wang, Meta’s chief AI … | twokq.com |
| Andrew Tulloch | Meta | Anthropic | September 2026 | 7 | inference and performance team | gadgetsnow.indiatimes.com |
Best-effort census of publicly reported, independently corroborated researcher moves between frontier general-purpose model labs, January 2025 – September 2026. Built from 106 evidence rows collapsed to 61 canonical transitions; lab aliases merged (Google/Alphabet/DeepMind; Meta/Meta AI/MSL; TML variants); for duplicate reports the month with the strongest independent-host support was kept. “Hosts” is the number of independent publishers corroborating a move. Nontechnical executives, product and policy staff, and moves to narrow application startups were excluded, as was one spurious Karpathy row.