Hassabis steps back from DeepMind as four top AI scientists depart Google

Google DeepMind is entering a new era. Demis Hassabis, the Nobel Prize-winning co-founder who built DeepMind into one of the world's foremost AI laboratories, is stepping back from day-to-day leadership to become Chair of Google DeepMind and Chief Scientist of Alphabet ↘ 0.88%, a newly created title. Longtime CTO Koray Kavukcuoglu will take over as Senior Vice President, reporting directly to CEO Sundar Pichai and overseeing Gemini model development, frontier research, and developer teams.observer+1

The announcement, made on August 5, 2026, came alongside the departure of Jeff Dean after 27 years at Google. Dean, along with Senior Fellow Sanjay Ghemawat, Oriol Vinyals, and Quoc Le, left to co-found Discovery Loop, a public benefit corporation aiming to automate the scientific method. Google is a founding investor and cloud partner in the venture.timesnownews+1

Two Clocks, Two Leaders

In a message to employees, Pichai said Google had reached "a crucial point in its AI journey" and that he and Hassabis had discussed creating a role allowing the DeepMind co-founder to concentrate on AGI's future. Hassabis will also devote more time to Isomorphic Labs, Alphabet's AI drug discovery subsidiary. "I've always believed the No 1 application of AI should be to improve human health," Hassabis said in a statement.timesnownews+1

Kavukcuoglu, a 13-year DeepMind veteran credited with establishing its deep learning team and contributing to projects including WaveNet, inherits a turbulent operation. Gemini 3.5 Pro remains delayed past its originally planned June launch, and both of its co-technical leads — Vinyals and Noam Shazeer — have now departed.gurufocus+1

A Talent Exodus Accelerates

The reshuffle compounds what The Observer described as a worsening brain drain. According to Zeki Data, 74 researchers have left Google DeepMind so far in 2026, with the ratio of arrivals to departures falling to 1.7, down from 4.7 in 2024. By contrast, Anthropic's ratio stands at 8.3.observer

Alphabet shares fell roughly 4% on the news, the company's second AI-related selloff in under two months. Investors are watching whether Kavukcuoglu can stabilize the team, ship delayed models, and retain remaining talent as competitors offering pre-IPO equity continue to recruit aggressively from Google's ranks.memeburn+1