Google’s four AI departures: “We wanted to build something differently”
The New Stack Amanda Caswell ● Covered by 18 sources
Google shakes up DeepMind's leadership while four top engineers leave to launch an AI research startup called Discovery Loop. Google's still backing them with cash and cloud access, so it's less a breakup than a spinoff with strings attached.
Based on reporting by The New Stack, Amanda Caswell — read the original for the full story.
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Google just reorganized how its AI empire runs, and lost four of its most senior engineers in the process. Demis Hassabis is stepping back from day-to-day DeepMind operations to become chair of Google DeepMind and Alphabet's chief scientist, handing the Gemini roadmap, frontier research, and the Gemini app to Koray Kavukcuoglu, DeepMind's CTO and Google's chief AI architect. Meanwhile Jeff Dean, Sanjay Ghemawat, Oriol Vinyals and Quoc Le are walking out the door to start something called Discovery Loop, a public-benefit corporation built to automate scientific and engineering research.
These aren't junior names. Dean joined Google in 1999, helped build Google Brain, and co-designed systems like MapReduce, Bigtable, Spanner and TensorFlow. Ghemawat built infrastructure behind Search itself. Vinyals and Le worked on foundational deep learning research and, alongside former OpenAI chief scientist Ilya Sutskever, co-authored the 2014 paper on sequence-to-sequence learning that's still cited constantly. Ghemawat told Wired the point of leaving was simple: Google's systems were built for products like Search and advertising, and Discovery Loop wants infrastructure built specifically for research instead.
Dean described the ambition at Y Combinator's Startup School back in July — a system that can propose an experiment, run it, evaluate the results, and decide what to test next, without much human hand-holding in between. That's not a small claim. And it lands at a moment when automated discovery is starting to look less theoretical; OpenAI's Astra reportedly proved ten long-standing math and science theorems for about $2,000 in token costs, which gives some sense of the terrain Discovery Loop is walking into.
Google isn't just letting these four leave and wishing them well. It's investing in Discovery Loop and signing a cloud deal to supply computing capacity, which means the startup skips building its own data centers and Google gets a stake in whatever comes out of the work — plus another big workload for Google Cloud. It's a pattern that's becoming familiar: Google previously lost Gemini co-leader Noam Shazeer to OpenAI and AlphaFold researcher John Jumper to Anthropic, so keeping a financial thread attached to departing talent looks like a deliberate hedge this time around.
All this comes as Kavukcuoglu inherits a roadmap with the flagship Gemini 4 still unreleased after a planned June launch, and as Hassabis, in his note to staff, called AGI "close at hand" while explaining he wants more room to shape what happens next. Alphabet shares dropped more than 5% after the announcement, a reminder that markets don't love uncertainty even when the underlying strategy is coherent.
My take — AI-written commentary, not fact-checked reporting
Google turning departures into equity stakes is the smartest trick in Big Tech's playbook right now — you don't lose your best people, you just change their badge and keep a slice of whatever they build. Calling Discovery Loop independent while Google funds it and hosts its compute is a bit like calling your adult kid "self-sufficient" while still paying the rent. The real tell here is Hassabis stepping back to think about AGI just as he's calling it close at hand; that's not retirement, that's someone repositioning themselves for the next fight rather than managing the current one.
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