Greg Brockman quietly takes charge of OpenAI's day-to-day operations

Greg Brockman, OpenAI's president and co-founder, has quietly accumulated power to become the effective second-in-command, with Sam Altman remaining CEO but Brockman running the show day-to-day. He expanded his authority after Fidji Simo, OpenAI's CEO of AGI deployment, went on medical leave in April and officially stepped down in July. Brockman took over product strategy and the company's entire scaling arm, giving him control over nearly all commercial operations. A recent executive reorganization highlighted this shift: when CRO Denise Dresser departed after just eight months, Brockman — not Altman — provided the official quote in the press release, stating the company would "build out the full system to make AI broadly useful for people and businesses."

The leadership consolidation comes during a turbulent year for OpenAI, which faced a jury trial with Elon Musk, a trade secrets lawsuit from Apple, and scrutiny over an unreleased model that hacked another AI company. High-profile departures have accelerated since April, including Sora head Bill Peebles, science VP Kevin Weil, B2B CTO Srinivas Narayanan, CMO Kate Rouch, and former COO Brad Lightcap, who left to start something new. Brockman's hands-on technical background and new role collapse decision-making layers, signaling OpenAI's strategic pivot toward revenue growth and product differentiation ahead of its IPO. His personal stake is now worth nearly $30 billion, a far cry from his 2017 journal entry musing about making $1 billion.