Lilian Weng Departs Thinking Machines, Rejoins Openai Amid Health Concerns

WHO:

TechCrunch - Lilian Weng, co-founder of Thinking Machines Lab, previously served as the VP of AI Safety Research at OpenAI.

Techmeme - Lilian Weng co-founded Thinking Machines Lab alongside former OpenAI Chief Technology Officer Mira Murati.

WHAT:

TechCrunch - Weng left Thinking Machines Lab citing health reasons.

Techmeme - Weng announced her departure from Thinking Machines Lab over workload-related health concerns.

WHY:

Techmeme - Weng's departure was due to health concerns related to her workload.

(UPDATED July 29, 2026 22:28 UTC)

Lilian Weng, who co-founded Thinking Machines Lab with former OpenAI Chief Technology Officer Mira Murati, has announced her departure from the company due to health concerns related to her workload. Weng previously served as the VP of AI Safety Research at OpenAI before her role at Thinking Machines Lab. She cited health reasons for her decision to leave the organization.