Warned 'the world is in peril.' Cited a disconnect between Anthropic's stated safety values and competitive pressures driving actual decisions.

Departed Anthropic in February 2026, announcing plans to pursue something new. His public post did not link his departure to safety or ethics concerns; he is listed for chronology alongside the February 2026 safety-team departures.

Departed Anthropic in February 2026, writing that he was leaving to start something new and praising Anthropic as a 'magical place' with a strong culture. His public post did not link his departure to safety or ethics concerns; he is listed for chronology alongside the February 2026 safety-team departures.