Greg Brockman has left OpenAI this week to start something new, days after a $7 billion tender offer let employees sell shares. The former chief operating officer’s exit adds another senior departure at a company that has become a magnet for both money and churn.
His move is drawing attention now because it lands in the middle of a wider reshuffling across AI. Six days earlier, Jeff Dean, Sanjay Ghemawat, Oriol Vinyals and Quoc Le left Alphabet to found Discovery Loop, a start-up built to automate scientific research. On the same day, Demis Hassabis stepped back from running Google DeepMind and Koray Kavukcuoglu took over, while all eight authors of Alphabet’s paper Attention Is All You Need have now left the company.
The pattern reaches beyond one company. Top researchers from Meta Platforms, Alphabet and OpenAI are leaving large tech groups to build AI-powered applications at private start-ups, even as the biggest players keep posting huge growth in the businesses that sell AI to customers. Microsoft’s Azure grew 43% last quarter and its commercial backlog rose 84% to $678 billion. Amazon Web Services revenue climbed 37% in the second quarter, its quickest pace in nearly five years, and Amazon’s annual run rate revenue for AI surpassed $25 billion. Alphabet’s Google Cloud revenue grew 82% last quarter, and the company ended the period with a $514 billion backlog.
That is the friction in the story: demand for AI is accelerating, especially at the enterprise level, yet some of the people who helped build the field are moving on. Space Exploration Technologies went public in June, Grok 4.6 arrived this week, Grok 4.7 is expected in a matter of weeks and Grok 5 should follow before year's end. Space Exploration Technologies’ $60 billion acquisition of Cursor could close within days, and a new Nvidia partnership could help it put AI data center hardware into orbit. OpenAI’s latest departure fits the same pattern of advance and loss.
What Brockman is building next has not been disclosed. For now, the sharper question is whether the industry can keep absorbing these exits while still producing the next wave of AI products, or whether the talent moving out of OpenAI, Alphabet and Meta Platforms will start to slow the companies that made the market possible.
