Fidji Simo steps down from OpenAI’s no. 2 role
Fidji Simo, OpenAI’s No. 2 executive, is stepping down from her full-time role, the Wall Street Journal reports.
In a staff note Thursday, Simo said her ongoing medical leave has proven longer and harder than expected, and that she’ll transition to a part-time advisory role instead. Simo joined OpenAI’s board of directors in 2024 and joined OpenAI in May 2025 as CEO of Applications, then a newly created role reporting directly to Sam Altman that consolidated the company’s business and product operations.
That move was integrated into a wider reporting shift: COO Brad Lightcap, CFO Sarah Friar, and CPO Kevin Weil all began reporting to her, while Altman stepped back to focus on research, compute, and safety.
Simo first disclosedher health issues in April, when she announced she was taking medical leave for a relapse of a neuroimmune condition; it was in that same memo that it was...
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