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OpenAI Rehires Thinking Machines Co-Founder Days After Startup Exit

Jul 30, 2026 · 03:21 PM ET· updated 2h ago
OpenAI Rehires Thinking Machines Co-Founder Days After Startup Exit

Thinking Machines co-founder Lilian Weng has stepped down from the AI startup, citing health concerns, before quickly returning to OpenAI.

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Why It Matters

A person who left OpenAI to start her own AI company decided to come back to OpenAI after just a short time away because of health reasons. When important people move between companies, it can tell you something about which company they believe in most.

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Source: Benzinga · Read the original report at the publisher. Headline and figures shown for context; data may be delayed.

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