Greg Brockman Takes Over ChatGPT Business After Fidji Simo Exits as OpenAI Eyes $852 Billion IPO
Updated
Updated · CNBC · Jul 10
Greg Brockman Takes Over ChatGPT Business After Fidji Simo Exits as OpenAI Eyes $852 Billion IPO
3 articles · Updated · CNBC · Jul 10
Summary
Greg Brockman is now formally in charge of OpenAI’s most profitable operations after Fidji Simo stepped down Thursday and moved to a part-time advisory role.
Simo, who took medical leave in April after living with POTS, had led product and business for about a year; Brockman had already assumed those duties during her absence.
Brockman will keep oversight of ChatGPT, go-to-market, enterprise and compute teams, while Sarah Friar and Jason Kwon continue reporting directly to CEO Sam Altman; OpenAI does not plan to replace Simo.
The expanded role puts Brockman under pressure to drive revenue and defend OpenAI’s $852 billion valuation as the company prepares for a likely delayed IPO after confidentially filing in June.
That challenge comes as competition intensifies from Anthropic, Google, Musk’s xAI and cheaper Chinese open-weight models, with ChatGPT’s market share slipping below 50% in March.
With Anthropic now leading in revenue share, is OpenAI's era of AI dominance already over?
Losing $1.22 for every dollar earned, can OpenAI's new leadership avert financial collapse before its IPO?
OpenAI’s Path to a $1 Trillion IPO: Leadership Transitions, Financial Risks, and Industry Lessons
Overview
OpenAI has recently seen major leadership changes, with Fidji Simo stepping down from her full-time executive role due to medical leave and moving into a part-time advisory position. Previously, Simo played a key role as CEO of Applications, unifying product and commercial operations and reshaping the company’s leadership structure. In response, Greg Brockman, co-founder and president, has expanded his responsibilities to oversee product and lead the ChatGPT business, leveraging his deep institutional knowledge and experience with major product launches. These transitions are expected to influence OpenAI’s strategic direction and product development moving forward.