A public-record census of 41 researcher moves between eight frontier AI labs, January 2025 through 3 September 2026 — 19 moves in 2025 and 22 in 2026, each drawn as one strand below. Dates are the publicly reported dates, kept at month precision where no exact date exists.
| Researcher | Left | Joined | Date | Technical role / specialty | Sources |
|---|
Method: public-record census of researcher moves between frontier general-purpose model labs (OpenAI, Anthropic, Google DeepMind, Meta Superintelligence Labs, xAI, Microsoft AI, Safe Superintelligence, Thinking Machines Lab), 2025-01-01 to 2026-09-03; 41 moves kept from 96 candidate extractions after normalizing parent-company labels (Google→Google DeepMind, Meta→Meta Superintelligence Labs, Microsoft→Microsoft AI), deduplicating variants, and excluding moves whose immediate origin or destination lies outside the set (e.g. Tesla, Eureka Labs, Discovery Loop, AMI Labs, Ineffable Intelligence, Cognition, ByteDance, OpenClaw) and non-technical executives. A date is the reported/announced date, not a verified start date; month-only dates stay YYYY-MM and uncertain cases are flagged in the table rather than converted. One anomalous extraction date for John Jumper (2026-02-28) was corrected to the reported 2026-06-19. Undisclosed moves are absent by nature of public sourcing.