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Applied AI·July 29, 2026·1 min read

Thinking Machines co-founder Lilian Weng left the company citing health reasons, then joined OpenAI

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A former VP of AI Safety Research at OpenAI cycling back into the lab underscores how concentrated top safety and alignment talent remains. For smaller labs and AI-heavy startups, this is a hiring constraint—assume you’ll need to grow your own safety expertise rather than poach it.