OpenAI leadership change

OpenAI’s chief operating officer Fidji Simo is leaving her full‑time role after an extended medical leave, creating a leadership gap as the company prepares for a potential IPO and competes with Anthropic in enterprise AI.

One continuously updated timeline instead of dozens of separate articles. New developments are appended as the story evolves.

1. AnnouncementJul 9, 2026, 11:38 PM

   OpenAI’s No.2 executive Fidji Simo resigns from full‑time role

   OpenAI’s chief operating officer Fidji Simo is leaving her full‑time role after an extended medical leave, creating a leadership gap as the company prepares for a potential IPO and competes with Anthropic in enterprise AI.

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2. 1 hour later
   AnnouncementJul 10, 2026, 12:44 AM

   OpenAI COO Brad Lightcap steps down due to health concerns

   OpenAI's chief operating officer, Brad Lightcap, is stepping down due to health concerns, the company confirmed.

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