OpenAI announced a significant leadership shakeup on Thursday, with three senior executives simultaneously stepping back from their current roles.

Three Exits at Once

Fidji Simo, who leads AGI deployment, disclosed in an internal memo that she will take medical leave for several weeks to manage a neuroimmune condition. "I have done everything possible to avoid it, but sadly my body isn't cooperating," she wrote. OpenAI co-founder and president Greg Brockman will manage product during her absence, including the company's super app efforts.

COO Brad Lightcap is transitioning into a new "special projects" role reporting directly to CEO Sam Altman, focused on complex deals and investments. Denise Dresser, the former Slack CEO who joined OpenAI as chief revenue officer in late 2025, will absorb most of Lightcap's responsibilities.

CMO Kate Rouch is stepping down entirely to focus on cancer recovery. Former Meta CMO Gary Briggs will serve as interim marketing lead while the company searches for a permanent replacement. Rouch plans to return in a narrower role when her health allows.

Turbulent Timing

The reshuffle arrives during a challenging stretch for the $840 billion company. OpenAI recently killed its Sora video tool to redirect compute toward enterprise and coding, signed a controversial Pentagon deal, and lost its chief communications officer in January. Just a day earlier, it announced the acquisition of tech talk show TBPN in an unusual foray into media.

OpenAI said it remains "well-positioned to keep executing with continuity and momentum" as it approaches a potential IPO later this year with nearly one billion users.