Google’s Top AI Brains Are Leaving to Launch Discovery Loop

On July 25, Jeff Dean spoke to 6,000 would-be founders at Y Combinator’s Startup School at San Francisco’s Chase Center. Dean is a legendary engineer at Google . He is cofounder of Google Brain, chief scientist of Google DeepMind and Google Research, and technical colead on the company’s flagship AI model Gemini . With his frequent collaborator Sanjay Ghemawat , he’s written significant parts of the company’s computing and search infrastructure. A running joke in geekdom is a list of surreal “facts” about his technical prowess: Jeff Dean’s resume lists the things he hasn’t done; it’s shorter that way . At Chase Center, the interviewer asked him what areas startup founders should think about tackling.

Dean said that the most important thing would be to pick something you’re excited about and would be useful in the world. He then shared his own interest: an automated version of the scientific method. “You propose an experiment, you implement what you need to run the experiment, you evaluate the experiment, and then you get results from that,” he said. Dean said that running thousands of those automated loops could unlock groundbreaking advances in multiple domains like science, biology, chip design, and even making improved AI models.

Unbeknownst to the crowd, Dean was talking about his own secret startup, which he had just organized. Today it’s official: After almost 27 years, Dean is leaving Google, along with Ghemawat and two other top-tier AI scientists, to found a company called Discovery Loop .

Even though Google will take a stake in the new company, it’s a devastating blow to the search giant as it attempts to keep pace in the frantic AI model competition. It’s bad enough that Dean and Ghemawat, who were among the company’s first hires, are leaving—that’s like Mick Jagger and Keith Richards ditching the Rolling Stones to start a new band. Worse, the other cofounders are also supernovas in the AI firmament: Oriol Vinyals , VP of research at DeepMind and a technical lead for Gemini, and Quoc Le , a cofounder of Google Brain and the key scientist behind Google’s AutoML-Zero, a project that uses machine learning algorithms to autonomously build AI products.

In an interview I did with the cofounders just before launch, Dean tells me the idea came up only a few weeks ago. He was quickly joined by the other three, who are not only long-time colleagues but friends who vacation together. “We were working on different things, but we were all starting to see the possibility of AI being able to automate scientific and engineering loops,” he says.