Editorial illustration for Demis Hassabis to Chair Google DeepMind, Become Alphabet Chief Scientist
Demis Hassabis Named Alphabet Chief Scientist
Sundar Pichai reshuffled the top of Google's AI operation on Wednesday, moving Demis Hassabis out of his current role and into two new ones. Hassabis will become chair of Google DeepMind and Alphabet's chief scientist, while keeping his post running Isomorphic Labs, the Alphabet subsidiary trying to use AI to develop new drugs. Koray Kavukcuoglu, previously DeepMind's CTO, takes over as Google's SVP of DeepMind and will report directly to Pichai. He's also keeping his title as Google's chief AI architect, so the company now has two people carrying "chief" titles in overlapping AI territory.
The changes don't stop there. Jeff Dean, Google's 30th employee and until now chief scientist of Google DeepMind, is leaving the company entirely. He's taking Google Fellow Sanjay Ghemawat with him to start a new AI-focused public benefit corporation called Discovery Loop.
Two decades of institutional memory walking out the door at once is not a small thing for a company that has spent years trying to consolidate its AI research under one roof. Hassabis addressed the move in a message to staff, laying out why he's stepping back from the day-to-day.
Hassabis will become the chair of Google DeepMind and the chief scientist at Alphabet, CEO Sundar Pichai announced on Wednesday. Hassabis will continue to lead Alphabet’s Isomorphic Labs, which aims to use AI to develop drugs.
Why this matters
For anyone building on Gemini or watching Google's AI roadmap, this reshuffle is worth tracking closely. Hassabis moving to chair and chief scientist, while keeping his grip on Isomorphic Labs, reads as a step back from daily operations toward a longer-horizon, research-and-strategy role. Koray Kavukcuoglu inheriting the CEO seat at DeepMind puts an engineering-and-infrastructure veteran in charge of shipping product, which could mean faster iteration cycles but also a shift in priorities away from pure research bets.
Pichai making this announcement himself signals Alphabet wants Hassabis's scientific credibility applied across the whole company, not just DeepMind, at a moment when Google is racing OpenAI and Anthropic on model releases. For researchers, the question is whether Hassabis at the Alphabet level means more resources for ambitious science, or just a promotion that trades influence for distance from the lab floor. Founders partnering with DeepMind or Isomorphic should watch who Kavukcuoglu brings in next.
Leadership structure changes like this usually show up in product cadence within a couple of quarters, not immediately.
Common Questions Answered
What are Demis Hassabis's new roles following Google's AI leadership reshuffle?
Demis Hassabis has been promoted to chair of Google DeepMind and chief scientist at Alphabet, as announced by CEO Sundar Pichai. He will continue leading Isomorphic Labs, Alphabet's subsidiary focused on using AI to develop new drugs, while transitioning to a longer-horizon research and strategy role.
Who replaced Demis Hassabis as the head of Google DeepMind?
Koray Kavukcuoglu, who previously served as DeepMind's CTO, has been promoted to Senior Vice President of DeepMind and will report directly to Sundar Pichai. Kavukcuoglu is also retaining his title as Google's chief AI officer, bringing his engineering and infrastructure expertise to the operational leadership of DeepMind.
What is the strategic significance of Hassabis moving to a chair and chief scientist position?
Hassabis's transition to chair and chief scientist represents a shift from daily operations toward longer-horizon research and strategy work. This change allows him to focus on high-level direction while Kavukcuoglu's engineering background in the CEO role could enable faster product iteration cycles and improved shipping capabilities.
How does Isomorphic Labs fit into the leadership changes at Google DeepMind?
Isomorphic Labs, Alphabet's subsidiary focused on using AI to develop new drugs, remains under Hassabis's leadership despite his promotion to chair and chief scientist roles. This arrangement allows Hassabis to maintain his involvement in the drug development initiative while taking on broader strategic responsibilities across Alphabet's AI operations.
Further Reading
- Google reshuffles AI leadership, giving Demis Hassabis new chair role at DeepMind and chief scientist role at Alphabet - TIME
- Demis Hassabis Embraces the Future of Work in the Age of AI - WIRED
- The Man Behind Google’s AI Machine | Demis Hassabis - Google DeepMind / YouTube
- Google DeepMind CEO Demis Hassabis: AI's Next Breakthroughs, AGI Timeline, Google's AI Glasses Bet - Big Technology Podcast / YouTube
- A Conversation with Demis Hassabis, Co-Founder and CEO ... - Stanford Graduate School of Business / YouTube