Every frontier AI lab has lost co-founders except Anthropic, where all 7 remain

menhguin · x · 2026-10-01

A roundup of co-founder departures: OpenAI 8 of 11 gone, Thinking Machines 3 of 6, SSI 1 of 3, DeepMind 1 of 3, xAI 3 of 12. The lone exception is Anthropic, where all 7 co-founders are still there—a culture worth studying. The quoter jokes about a researcher with zero company-leading experience taking on the best tech founders of a generation.

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