Google AI chief scientist Jeff Dean to leave company

The short version
Alphabet announced a restructuring of its AI leadership. Jeff Dean, Google's chief scientist, will leave the company. Demis Hassabis will take on new roles at DeepMind and Alphabet.
Alphabet announced a restructuring of its AI leadership on August 5, 2026.3,1 Jeff Dean, Google's chief scientist and one of the company's first employees, will leave to launch his own company.2,1 Demis Hassabis, CEO of Google DeepMind, will become chair of DeepMind and chief scientist of Alphabet.4,3
Hassabis will continue to lead Alphabet's Isomorphic Labs, which uses AI for drug development.3 Koray Kavukcuoglu, formerly DeepMind's CTO, will become CEO of Google DeepMind.3 Hassabis stated the changes will allow him to focus on long-term strategy and accelerating scientific work.4
Google's AI divisions are undergoing a reshuffle, according to company announcements.1
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