OpenAI is consolidating a wider swath of the company's day-to-day operations under President Greg Brockman, who will now oversee the ChatGPT product business, go-to-market teams, enterprise operations and the company's compute initiatives, reporting directly to CEO Sam Altman. The move follows the exit of Fidji Simo, who had run product and business as Altman's top deputy before stepping back this month due to a chronic illness.
Simo has been on medical leave since April 2026, and Brockman had already been absorbing much of her portfolio informally during her absence. The new arrangement makes that consolidation official and centralizes authority under a single executive rather than splitting Simo's former responsibilities across OpenAI's broader leadership bench, as some earlier reporting on her exit had suggested would happen.
“Simo has been on medical leave since April 2026, and Brockman had already been absorbing much of her portfolio informally during her absence.”
Brockman's standing inside OpenAI is unusual even by the standards of a company known for tight founder control. He co-founded OpenAI alongside Altman, Elon Musk and others in 2015, and when Altman was briefly ousted by the board in November 2023, Brockman resigned in solidarity within hours -- a move widely credited with helping trigger the staff revolt that returned Altman to the CEO role days later. That history makes him one of the only people at OpenAI Altman has handed sweeping, company-wide authority to rather than distributing it across a management team.
The timing matters. OpenAI confidentially filed IPO paperwork with regulators in June 2026 but has not disclosed a timeline for going public, and Brockman's expanded mandate puts him squarely in charge of the metrics -- ChatGPT revenue growth, enterprise adoption, compute efficiency -- that public-market investors will scrutinize hardest whenever that process moves forward. Centralizing operational control under one trusted lieutenant ahead of an IPO is a common governance move, but it also means Brockman personally now owns the execution risk on nearly every consumer- and enterprise-facing line of OpenAI's business.
For competitors and enterprise buyers watching OpenAI's leadership structure, the reshuffle signals the company is prioritizing continuity and founder trust over building a broader public-company-style executive bench in the near term -- a bet that could pay off in speed but concentrates risk if Brockman's attention gets stretched across too many functions at once. What to watch next: whether OpenAI names a permanent successor to Simo's specific title, and whether the compute-initiatives portfolio Brockman now owns includes direct authority over the custom-chip partnerships OpenAI has been striking with Broadcom and others.