Demis Hassabis steps aside as Google DeepMind CEO
Koray Kavukcuoglu takes over, Jeff Dean leaves
Confirmed
Importance: major (4 of 5)The takeaway
In early August 2026 Demis Hassabis handed day-to-day control of Google DeepMind to CTO Koray Kavukcuoglu (as SVP reporting to Sundar Pichai), becoming DeepMind chair and Alphabet chief scientist while continuing to lead Isomorphic Labs.
Status
- Claim
Confirmed
- Our reporting
- High confidence
- Importance
- Major (4 of 5)
- Last verified
- 10 October 2026
Your AI and this story
- GPT-6 Astra97 days after its cutoff
- Claude Opus 5.536 days after its cutoff
- Gemini 4 Hydrogen127 days after its cutoff
- Grok 4.766 days after its cutoff
None of these four assistants can know about it. The closest, Claude Opus 5.5, stops 36 days before it.
Key facts
- Hassabis: now Chair of Google DeepMind and Chief Scientist of Alphabet; keeps leading Isomorphic Labs
- Kavukcuoglu: SVP of Google DeepMind, reports to Pichai; oversees Gemini models, frontier research and Gemini app teams
- Jeff Dean leaves after 27 years to start an independent public benefit corporation with Sanjay Ghemawat; Google is founding investor and Cloud partner
- Hassabis quote: ‘I’ve been working towards AGI my whole life and now, like many of you, I feel it is close at hand.’
- Fortune: Gemini 3.5 Pro had missed three deadlines (June, mid-July, August); June departures included Noam Shazeer (to OpenAI) and John Jumper (to Anthropic)
- Reuters (Kenrick Cai, Aug 12, seven sources): Sergey Brin told hundreds of staff at an April 2026 town hall to ‘go all in’ on Gemini and move faster, pushing resources toward ‘recursive self-improvement’; the next Gemini flagship had slipped about two months; Alphabet stock fell 4% on the announcement day; several non-technical teams moved out of DeepMind into Google
- Business Insider (Sept 11, via TNW): Brin, with no formal title, works from a converted microkitchen in Gradient Canopy near Kavukcuoglu and Pichai, weighs in on model sizes and release windows, and can grant chip access informally. A Stocktwits recap (Oct 10) recirculated the ‘go all in’ report
What happened
Alphabet CEO Sundar Pichai announced a leadership change at Google DeepMind (reported by Axios on 5 Aug 2026): Hassabis moved from CEO to chair to focus on strategic/global AGI questions and Isomorphic Labs, and Kavukcuoglu took operational control. The same memo said Jeff Dean was leaving to start a new public benefit corporation with Sanjay Ghemawat. Fortune reported low morale, 60-hour weeks and a string of high-profile departures, and linked the change to the stalled Gemini 3.5 Pro.
Why it matters
The head of the lab that produced AlphaGo, AlphaFold and Gemini stepped back from running it during the most competitive stretch of the frontier race. Kavukcuoglu’s first public statements (September) promised an early Gemini 4 release.
Sources
10 sources from 8 sites. Numbers match the chips in the text.
10 sources: 4 primary, 6 press
Primary
- Sundar Pichai: The next chapter of our AI momentumblog.google, official
- Sundar Pichai on X announcing the DeepMind changesx.com, official
- Demis Hassabis on X: stepping into a new rolex.com, official
- Jeff Dean on X: Announcing Discovery Loopx.com, official
Press
- Axios: Google DeepMind CEO Demis Hassabis is stepping asideaxios.com, press
- CNBC: Demis Hassabis’ new Google DeepMind role explainedcnbc.com, press
- TIME: Google DeepMind reshuffles after CEO steps asidetime.com, press
- Fortune: Behind the exit of DeepMind’s CEO — low morale, talent exodus, model delaysfortune.com, press
- Reuters (via Yahoo Finance): Exclusive: inside the Google executive moves that led to its big AI reshuffle (Aug 12)finance.yahoo.com, press
- TNW: Sergey Brin is shaping Gemini from a Google microkitchen (Sept 11, citing Business Insider)thenextweb.com, press
Changes
- Added Reuters (Aug 12) on Brin’s April “go all in” town hall and BI/TNW (Sept 11) on his informal role (Stocktwits recap)
- Linked the AlphaFold-team breakup entry (Jumper, Adler, Pritzel to Anthropic)
- Added post link(s) (3) from Google/DeepMind + math posts pass
- Linked the new Discovery Loop entry
- Filed (note: Fortune dates Jeff Dean’s departure to June 2026 while Pichai’s August memo announces it; exact timing unverified)