StartupsGlobal / Other·Ranked Wednesday, July 29, 2026

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

Thinking Machines co-founder Lilian Weng joins OpenAI citing health reasons.

Weng previously served as the VP of AI Safety Research at OpenAI.

AI score breakdown

#24 that day2.85/ 10

Technology breakthrough · weight 30%1/10

Economic impact · weight 25%3/10

Job impact · weight 20%4/10

Regional relevance · weight 15%6/10

Policy & geopolitics · weight 10%1/10

Composite is the weighted sum of the five dimensions. How scoring works →

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