OpenAI Apps Chief Fidji Simo Steps Down Due to Health Battle
Fidji Simo Steps Down as OpenAI’s Applications Chief Due to Chronic Health Battle; Key Leadership Trio Mobilized to Absorb Core Operations Fidji Simo , one of the most powerful executives within OpenAI’s core leadership architecture, has officially announced her departure from her full-time role due to escalating health complications. Simo, who has been quietly battling a chronic medical condition for the past seven years, revealed that her symptoms have recently intensified, forcing her to step away from intense day-to-day operations to focus entirely on her long-term recovery. To ensure continuity across OpenAI rapidly expanding product ecosystem, she will transition into a part-time advisory position for the enterprise. Prior to joining OpenAI, Simo served as the high-profile CEO of Instacart before being personally recruited by OpenAI CEO Sam Altman in August 2025. Reporting directly to Altman, Simo was handed absolute oversight of OpenAI’s consumer and enterprise application port...