OpenAI’s Fidji Simo Is Taking Medical Leave Amid an Executive Shake-Up

image via WIRED

April 3, 2026, 7:38 PM

• •Fidji Simo, CEO of AGI deployment, takes medical leave.
• •Greg Brockman assumes responsibility for product teams.
• •Brad Lightcap moves to a "special projects" role.
• •Kate Rouch takes leave for health reasons; OpenAI seeks new CMO and CCO.
• •OpenAI eyes an IPO and focuses on core products.

OpenAI is undergoing a significant reorganization as its CEO of AGI deployment, Fidji Simo, takes medical leave, with Greg Brockman stepping in to manage product teams. Brad Lightcap is transitioning to a "special projects" role, and Kate Rouch is also taking a leave of absence for health reasons, while OpenAI searches for a new CMO and a chief communications officer. These changes come as OpenAI focuses on its core products and potentially eyes an IPO, following a massive funding round valuing the company at $852 billion.

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