AI Matters
Why it matters
Thinking Machines co-founder Lilian Weng departs, joins OpenAI
TechCrunch Thinking Machines co-founder Lilian Weng left the company citing health reasons, then joined OpenAI
Lilian Weng left Thinking Machines citing health reasons and has since joined OpenAI, where she previously led safety research.
Why it matters
A high profile AI safety researcher's move signals more churn among top AI talent moving between rival labs.
Latest brief · Jul 30, 2026