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importantSYS.SOURCE: TechCrunch2026-07-29T21:07:48Z

Lilian Weng Departs Thinking Machines Due to Health Concerns, Rejoins OpenAI as AI Safety Leader

Lilian Weng, co-founder of Thinking Machines, left the company citing health issues, later joining OpenAI to lead AI safety research. Her move raises questions about the impact of startup work on health, despite her previous concerns about fast-paced environments.

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

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> PROFOUND ACHIEVES UNICORN STATUS WITH $180M SERIES D FUNDING IN 7 MONTHS> WONDER EXPANDS FOOD DELIVERY NETWORK WITH $425M DOORDASH PARTNERSHIP> AI-POWERED CAMERA APP DEVELOPED BY FORMER TIKTOK EXECUTIVES AIMS TO ENHANCE PORTRAIT PHOTOGRAPHY SKILLS> SCALING STARTUPS FROM PROTOTYPE TO PRODUCTION: INSIGHTS FROM TECHCRUNCH DISRUPT 2026> INDIA INTRODUCES MERCHANT FEES FOR LARGE UPI TRANSACTIONS TO ENSURE FINANCIAL SUSTAINABILITY> FIREFOX 156 ENHANCES PDF VIEWER PERFORMANCE WITH 45% FASTER STARTUP> EVVY SECURES $40M TO ADVANCE WOMEN'S HEALTH RESEARCH VIA VAGINAL MICROBIOME DATA> GLOBAL BOND YIELDS REACH 2008-LEVEL PEAKS, IMPACTING MAJOR BORROWERS> TECHCRUNCH DISRUPT 2026 EXHIBIT OPPORTUNITIES CLOSING IN FOUR DAYS> PANEL: AN AGENT-DRIVEN RESEARCH WORKSPACE WITH CUSTOMIZABLE PANES> PROFOUND ACHIEVES UNICORN STATUS WITH $180M SERIES D FUNDING IN 7 MONTHS> WONDER EXPANDS FOOD DELIVERY NETWORK WITH $425M DOORDASH PARTNERSHIP> AI-POWERED CAMERA APP DEVELOPED BY FORMER TIKTOK EXECUTIVES AIMS TO ENHANCE PORTRAIT PHOTOGRAPHY SKILLS> SCALING STARTUPS FROM PROTOTYPE TO PRODUCTION: INSIGHTS FROM TECHCRUNCH DISRUPT 2026> INDIA INTRODUCES MERCHANT FEES FOR LARGE UPI TRANSACTIONS TO ENSURE FINANCIAL SUSTAINABILITY> FIREFOX 156 ENHANCES PDF VIEWER PERFORMANCE WITH 45% FASTER STARTUP> EVVY SECURES $40M TO ADVANCE WOMEN'S HEALTH RESEARCH VIA VAGINAL MICROBIOME DATA> GLOBAL BOND YIELDS REACH 2008-LEVEL PEAKS, IMPACTING MAJOR BORROWERS> TECHCRUNCH DISRUPT 2026 EXHIBIT OPPORTUNITIES CLOSING IN FOUR DAYS> PANEL: AN AGENT-DRIVEN RESEARCH WORKSPACE WITH CUSTOMIZABLE PANES