Google shifts AI leadership from London to California as Hassabis steps aside

Leadership overhaul

On Wednesday, 5 August, Google announced that Demis Hassabis is stepping back from day-to-day management of Google DeepMind, the AI lab he founded in 2010 and sold to Google for £400mn in 2014. Hassabis will become chair of Google DeepMind and chief scientist of Alphabet, the parent holding company, while retaining leadership of Isomorphic Labs, the drug-discovery company spun out of DeepMind. Koray Kavukcuoglu, DeepMind's chief technology officer, takes over as senior vice president with operational control of Gemini development, reporting directly to chief executive Sundar Pichai. The CEO title disappears, bringing DeepMind closer to the operating structure of other Google divisions.

Power shifts to California

The reorganisation consolidates AI leadership in Mountain View, ending the unusual arrangement under which Hassabis ran a US tech giant's AI development from London. Kavukcuoglu relocated from London to Google's headquarters in the past year and now leads Gemini development from a desk beside co-founder Sergey Brin, who has re-emerged as one of the company's most influential voices on AI strategy since the launch of ChatGPT. Kavukcuoglu, Turkish-born, spent 13 years at DeepMind, started its deep learning team, and led the work behind WaveNet and DQN. He studied under Yann LeCun at New York University, who calls him a great engineer who built rare research-management skills. He is now the only one of Gemini's co-leads still at Google, and some tip him to succeed Pichai one day.

Talent exodus

The same week, Jeff Dean, a 27-year Google veteran and the company's 30th employee, announced he is leaving alongside three other top AI researchers to form a new AI startup. A current Google employee, speaking anonymously due to fear of retaliation, described Dean's departure as an example of "the vestiges of Google's idealism" dying out.

“Losing Jeff continues the brain drain at Google. Mediocrity is the likely result.”

Google faces growing pressure to prove it can compete with OpenAI and Anthropic in coding tools and enterprise AI, while contending with an exodus of senior talent and mounting investor concern over the cost of its AI push.

Two readings of the exit

Google's official account and Hassabis's own framing present the move as a personal choice. Hassabis told staff he had decided this was the right time to hand over daily operational responsibilities, and said he was stepping back to "focus on the big picture." A second reading is sharper. After a 2024 image-generation fiasco, Hassabis demanded more control and won it, consolidating power in London while sitting 5,000 miles from headquarters. People close to DeepMind suspect a falling-out at the top, with Bloomberg's Parmy Olson writing that the chess champion was outmanoeuvred by Kavukcuoglu. Google has not addressed that reading, and it remains informed speculation. Hassabis's decision to make AlphaFold, the protein structure prediction system that earned him a Nobel Prize in Chemistry in 2024, freely available also became a source of internal tension, as the project generated little commercial return.

What Pichai and Hassabis said

Pichai conceded there were "areas we need to improve" and told staff the company had to move fast.

“We are committed to being at the frontier, and are super focused on the areas where we need to improve. We have to continue to move fast and with clear purpose here.”

Hassabis wrote that the company is entering a "next chapter" and has "all the ingredients to lead from here, and I firmly believe we will."