“Which AI researchers moved between frontier labs since 2025? For each move list the researcher, the lab they left, where they went and the approximate date”
42 publicly reported, multi-source-corroborated moves between frontier-model labs from January 2025 through September 2026, covering 38 named researchers (four moved twice). This is a best-effort inventory of publicly reported moves — quiet or undisclosed moves are absent — drawn from 27 independent source hosts.
| Researcher | Lab left | Lab joined | Approx. date | Research area / context | Source |
|---|
Method: 42 publicly reported researcher moves between frontier-model labs, January 2025 – September 2026, one row per reported researcher / lab-left / lab-joined combination, compiled from broad web reporting across news, trade press and specialist publications (27 distinct hosts; no single URL backs more than half the rows). Included: technical researchers, research engineers and technical research leads moving directly between labs training frontier general-purpose models. Excluded: product and policy hires, universities, and moves without a frontier lab at both ends. Dates are approximate and generally the reported joining or announcement month; two rows carry only a year. Corroborating-host counts are an evidence-strength cue only. Employer branding is retained as sourced (e.g. Meta vs Meta Platforms Inc.); the chart merges Meta brandings into one lane and Google into the Google DeepMind lane.