Lilian Weng Leaves Thinking Machines to Rejoin OpenAI for Model R&D
Justin_Halford_ · x · 2026-07-30
Lilian Weng, the Thinking Machines cofounder who recently departed due to startup-related stress and illness, is rejoining OpenAI. According to WSJ's Stephanie Palazzolo, Weng will focus on using AI to develop new models, specifically exploring recursive self-improvement.
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