OpenAI power consolidates under co-founder Greg Brockman ahead of prospective IPO
Greg Brockman's role at OpenAI has become clearer following Fidji Simo's official departure from the company due to a chronic medical issue. The shift comes as OpenAI moves closer to a prospective initial public offering.

Power at OpenAI is consolidating around co-founder Greg Brockman following the official departure of Fidji Simo, who left the company due to a chronic medical issue.
Simo had held a senior leadership role at OpenAI before her exit. With her departure now confirmed, Brockman's position within the company's leadership structure has become clearer, according to people familiar with the matter, at a moment when OpenAI is preparing for a prospective initial public offering.
OpenAI has not detailed how responsibilities will be redistributed among its remaining leadership team. The company's IPO plans, which have been the subject of market speculation for months, would mark one of the most closely watched public listings in the technology sector.
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