Who is leaving Google to start Discovery Loop?

Jeff Dean, Sanjay Ghemawat, Oriol Vinyals, and Quoc Le. Dean is cofounder of Google Brain and chief scientist of Google DeepMind; Ghemawat co-created Google's computing and search infrastructure with Dean; Vinyals is VP of research at DeepMind; and Le is a cofounder of Google Brain and the key scientist behind Google's AutoML-Zero project.

What will Discovery Loop do?

Discovery Loop will build an AI system that automates scientific and engineering experiments—proposing experiments, implementing them, evaluating results, and iterating. Initially the team will use these loops to improve their own machine learning algorithms, then expand to domains including chip design, biology, drug discovery, and material design.

How long had Jeff Dean worked at Google?

Almost 27 years. He was among the company's first hires alongside Sanjay Ghemawat.

AI in HealthcareWIRED AIAug 5, 2026Aug 6, 2026, 04:00 JST3 min read

Google's AI Chief Jeff Dean Exits After 27 Years to Found Discovery Loop

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Key takeaway

Jeff Dean, a legendary AI researcher who spent 27 years at Google as cofounder of Google Brain and chief scientist of Google DeepMind, is leaving the company along with three other senior AI scientists to start Discovery Loop, a startup focused on automating scientific discovery through AI.
The departure is a significant blow to Google's AI ambitions, though Google will invest in the new company and provide compute resources for its first year.
The startup's mission is to create AI systems that can autonomously design and run experiments—first to improve machine learning algorithms, then to tackle breakthroughs in chip design, biology, drug discovery, and material science.

3 Key Points

What happened
Jeff Dean, cofounder of Google Brain and chief scientist of Google DeepMind, is leaving Google along with three other top AI researchers—Sanjay Ghemawat, Oriol Vinyals, and Quoc Le—to start Discovery Loop, a company focused on automating scientific and engineering experiments using AI. The idea came together only a few weeks ago, and the team has already raised funding from Khosla Ventures and Radical Ventures, among others.
Why it matters
The departure represents a significant loss for Google in its race to compete in AI development. Dean and Ghemawat were among Google's first employees and helped build its core search and computing infrastructure; Vinyals led research at DeepMind; and Le created AutoML-Zero. Discovery Loop's stated goal—using AI to automate the scientific method across domains like chip design, biology, and drug discovery—could, if successful, allow small teams to out-invent large research organizations. Negotiating the exit was difficult enough that CEO Sundar Pichai held multiple meetings to convince them to stay.
What to watch
Discovery Loop is structuring itself as a public benefit corporation and has not yet hired a team or rented office space. Google will take a stake in the company and provide compute power for the first year. The founders are keeping funding amounts and valuation private, but venture capitalists note that individual AI superstars command tens or even hundreds of millions—and this team represents four of them.

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Context & Analysis

The departure of Jeff Dean and his team marks one of the most significant exits from Google in the AI era. Dean's resume has become legendary in the tech industry—there is a running joke that the document lists only the things he hasn't done, because listing his accomplishments would be longer. His work on Google's search infrastructure, neural networks, and the flagship Gemini model represents foundational contributions to modern AI. The fact that Alphabet CEO Sundar Pichai held multiple meetings to convince the team to stay underscores the magnitude of the loss for Google's competitive position in AI development.

The timing and structure of Discovery Loop's launch reveals the founders' intent to move quickly and maintain operational autonomy. The idea emerged only weeks before the announcement, yet the team—all long-time colleagues and friends—cohered rapidly around a shared vision. By structuring as a public benefit corporation and positioning Discovery Loop as its own first customer (testing autonomous experiment loops on machine learning improvements before externalizing), the founders are laying groundwork to prove their thesis. Venture capitalists including Vinod Khosla responded not primarily to a polished pitch deck but to the team's track record and the novelty of their core insight: that AI should function as a researcher, not merely as a tool for humans conducting research.

Google's response—investment, compute power for the first year, and public endorsement—suggests the search giant is attempting to maintain both the relationship and optionality on the company's upside. Yet the founders' emphasis on freedom from organizational inertia signals their view that radical innovation requires independence. Discovery Loop's success will ultimately hinge on whether the team can translate their deep expertise into a working system that genuinely automates scientific discovery across multiple domains—a claim many AI leaders have made but few have demonstrated at scale.

FAQ

Who is leaving Google to start Discovery Loop?: Jeff Dean, Sanjay Ghemawat, Oriol Vinyals, and Quoc Le. Dean is cofounder of Google Brain and chief scientist of Google DeepMind; Ghemawat co-created Google's computing and search infrastructure with Dean; Vinyals is VP of research at DeepMind; and Le is a cofounder of Google Brain and the key scientist behind Google's AutoML-Zero project.
What will Discovery Loop do?: Discovery Loop will build an AI system that automates scientific and engineering experiments—proposing experiments, implementing them, evaluating results, and iterating. Initially the team will use these loops to improve their own machine learning algorithms, then expand to domains including chip design, biology, drug discovery, and material design.
How long had Jeff Dean worked at Google?: Almost 27 years. He was among the company's first hires alongside Sanjay Ghemawat.

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