Demis Hassabis steps down as Google DeepMind CEO to become Alphabet's chief scientist
Koray Kavukcuoglu takes over day-to-day running of the lab and reports directly to Sundar Pichai. The change lands alongside Jeff Dean's departure from Google after 27 years to found a new company.
Demis Hassabis is no longer chief executive of Google DeepMind. He becomes chairman of the lab and chief scientist of Alphabet, and continues to run Isomorphic Labs, the drug-discovery company spun out of DeepMind itself. He shared the 2024 Nobel Prize in Chemistry for the protein-structure prediction work behind AlphaFold.
The day-to-day passes to Koray Kavukcuoglu, until now DeepMind’s chief technology officer and Google’s chief AI architect. He takes the role as senior vice president — no CEO title — reporting directly to Sundar Pichai, and picks up responsibility for Gemini development.
Everything else that moved the same afternoon
A great deal, which is what makes the announcement unusual. Jeff Dean is leaving Google after 27 years, and going with him are senior fellow Sanjay Ghemawat, DeepMind VP Oriol Vinyals and Google Brain co-founder Quoc Le. The group is founding Discovery Loop, a public-benefit corporation aimed at automating scientific and engineering discovery. Google is investing in it and will be its cloud provider.
So the company loses its lab CEO and its chief scientist in one sitting, and funds the startup some of them are leaving for. Alphabet shares fell more than 4% on the news.
How to read it
Hassabis framed the move as freeing him up for the big picture and for artificial general intelligence, which he has said he believes is reachable this decade. Pichai framed it around the need to accelerate Gemini. The two readings do not contradict each other, but they describe different priorities: one is long-horizon research, the other is product velocity against OpenAI and Anthropic.
For anyone tracking the sector, this reshuffle joins a year in which the major labs have been restructuring teams and moving to build their own silicon to cut dependencies. The lab’s own announcement is on the Google DeepMind site.
By Oliver Grant
Image: John Sears / Wikimedia Commons (CC BY-SA 4.0)