Barret Zoph and Luke Metz, cofounders of the AI startup Thinking Machines Lab, have left the company to rejoin OpenAI. The move was announced by OpenAI’s applications chief Fidji Simo in an internal memo. A source alleged that Zoph was dismissed for sharing confidential information, a claim OpenAI did not verify. Mira Murati confirmed Zoph’s departure and named Soumith Chintala as the new chief technology officer. The departures also include Sam Schoenholz, who is returning to OpenAI, and follow the earlier exit of cofounder Andrew Tulloch to Meta. Thinking Machines Lab continues to develop its Tinker platform for customizing AI models. Read more →