Fidji Simo is stepping down from her position as the chief of OpenAI's AGI efforts, transitioning to a role as a part-time advisor due to health complications. This announcement was made on July 9, 2026, following her earlier medical leave which began in April due to a neuroimmune condition.
Background on Simo's Medical Leave
Simo took a medical leave earlier this year, shortly after being appointed as AGI chief. Her leave was prompted by a severe exacerbation of a chronic illness that she has managed for seven years. In her statement on X, Simo expressed that the path to recovery has proven to be more complex than anticipated.
During her absence, OpenAI underwent significant leadership changes. Greg Brockman, OpenAI's president, temporarily assumed her responsibilities while also leading product strategy and a major reorganization aimed at enhancing the company's focus on AI agents.
Leadership Changes at OpenAI
Alongside Simo, other executives also stepped back from their roles. Brad Lightcap, COO, shifted to concentrate on special projects, while Kate Rouch, CMO, also stepped down to prioritize her health. Rouch plans to return to a narrowed role once her health permits.




