Discovery Loop targets $10 billion valuation as Jeff Dean exits Google

Discovery Loop, the AI startup from former Google chief scientist Jeff Dean, is in talks to raise $1 billion at a roughly $10 billion valuation, people familiar with the matter said — a bet that automating scientific research can become the next frontier in AI.

"The mission is to automate machine learning, science, and engineering to accelerate discoveries and progress," Dean said on X, describing Discovery Loop as a public benefit corporation that will run "thousands of experiments" in parallel to tackle hard problems in science and engineering.

The seed round is co-led by Radical Ventures and Khosla Ventures, with participation from Lightspeed, Kleiner Perkins, and Doerr Capital. Alphabet is a founding investor and cloud partner, according to Google CEO Sundar Pichai. Dean co-founded the company with Sanjay Ghemawat, Quoc Le, and Oriol Vinyals — a team whose collective work spans Google Search, Ads, Gemini, and Gmail.

The valuation would place Discovery Loop among the most richly valued pre-revenue AI startups, trailing only Reflection AI's reported $25 billion pre-money. Alphabet shares fell about 4 percent Wednesday, erasing roughly $185 billion in market value, as investors weighed the loss of four senior AI researchers in a single day.

The team that built Google's core stack

Dean spent 27 years at Google, where he and Ghemawat built much of the technical foundation the company still runs on — from early search infrastructure to the neural networks behind its AI models. Vinyals co-led the Gemini models, and Le was a founding member of Google Brain. Dean shared a pitch deck on X that one former Google product leader called "one of the most stacked pitch decks ever made," listing products the founding team worked on and Google Scholar rankings placing three of the four among the most highly cited AI researchers.

Alphabet's $185 billion talent question

The departures land at a moment when Alphabet's core business is compounding. Second-quarter revenue rose 24 percent year over year to $119.8 billion, the 12th consecutive quarter of double-digit growth. Google Cloud revenue reached $24.8 billion, with growth accelerating to 82 percent. But the company also raised its 2026 capital expenditure plan to $195 billion to $205 billion, and free cash flow turned negative last quarter for the first time on record.

Alphabet moved to contain the disruption. Demis Hassabis, who led Google DeepMind since Google acquired his lab in 2014, becomes the unit's chair and Alphabet's chief scientist. Koray Kavukcuoglu, DeepMind's longtime technology chief, takes over day-to-day operations and now leads development of Gemini 4, the company's next major model.

The relationship with the founders continues through Alphabet's investment in Discovery Loop and its role as cloud partner. If the startup's research pans out, Alphabet owns a piece of it — and sells it computing capacity along the way.

Discovery Loop is the latest example of Google talent leaving to raise large sums for new AI ventures. Former DeepMind researcher David Silver raised $1.1 billion at a $5.1 billion valuation for Ineffable Intelligence. Former DeepMind researchers Misha Laskin and Ioannis Antonoglou reportedly raised at a $25 billion pre-money valuation for Reflection AI. Sakana AI, cofounded by former Google researchers Llion Jones and David Ha, was valued at $2.65 billion last year.

Alphabet trades at about 27 times forward earnings, a premium that reflects 24 percent revenue growth and a cloud segment compounding at 82 percent. The question for investors is whether the departure of four senior researchers — even four of this caliber — changes the growth trajectory. The customer relationships, data, and research organization around them remain. But the researchers who just left helped build the models all that cloud capacity serves, which is why the market took their exit so hard.

This article is for informational purposes only and does not constitute investment advice.