Demis Hassabis moves to chair as Sergey Brin’s Mountain View orbit takes over Google’s Gemini strategy. For more than a decade, the most important desk in Google‘s artificial intelligence operation sat in London. It belonged to Sir Demis Hassabis, the chess prodigy turned neuroscientist who sold DeepMind to Google in 2014 for around £400 million and then spent years defending it as a research lab first and a product factory second. That arrangement ended this week. Hassabis is stepping back from running Google DeepMind to become its chair and Alphabet’s chief scientist, and day-to-day control of the lab passes to Koray Kavukcuoglu, the former DeepMind CTO now promoted to senior vice-president reporting directly to Sundar Pichai.The seating chart says more than the press release does. According to the Financial Times, Kavukcuoglu moved from London to Mountain View last year and now leads Gemini development from a desk beside Sergey Brin. Google’s co-founder holds no formal executive title, has not held one since 2019, and has still become one of the loudest voices on AI strategy inside a $4.4 trillion company. The power centre of Google AI has not just crossed the Atlantic. It has parked itself next to a man who told an I/O audience he comes into the office pretty much every day because he likes being deep in the technical details.
Sergey Brin’s return to Google AI began quietly in 2023 and never really stopped
Brin’s re-entry was not an announcement. The Wall Street Journal reported in mid-2023 that he was turning up at Google’s Charleston East building three or four days a week, sitting with the researchers building Gemini and arguing about loss curves. He convened weekly research discussions. He weighed in on which researchers to hire. Google said at the time that he had no new role beyond co-founder and board member, which was accurate and also beside the point. Three years on, the person overseeing Google’s flagship model reports to Pichai and works within earshot of Brin, while the Nobel laureate who built the lab advises from London.
Why Demis Hassabis is stepping back from Google DeepMind now
Hassabis framed the move as a choice, and it did not happen overnight. People familiar with the reorganisation say the transition had been planned for months, with Hassabis handing over operational responsibility for Gemini development to Kavukcuoglu across the past year as Google accelerated work on its flagship models. Kavukcuoglu has also been reporting directly to Pichai since June. By the time Wednesday’s announcement landed, much of the actual power had already changed hands.He told staff he wants the time and space to focus on the big picture and to shape what comes next in artificial general intelligence, which he said is “close at hand”. He will also lean harder into Isomorphic Labs, the Alphabet drug discovery unit he founded in 2021, which has signed pharma partnerships but has yet to put an AI-designed drug into clinical trials.People inside the company tell a less tidy version. The FT reported that senior executives had grown frustrated by what they saw as his lighter interest in the commercial demands of the AI business, and that his decision to release AlphaFold freely—the work that won him the 2024 Nobel Prize in Chemistry—became a source of internal tension because it returned little against the money spent on it. A person close to the company disputed that there was any friction, noting Hassabis led the original Gemini launch and is invested in its success.
What Sergey Brin’s influence means for London and the DeepMind research culture
Bloomberg framed the reorganisation as the end of something larger: Hassabis was the only executive running a US tech giant’s AI development from outside the country, and now nobody is. He resisted overtures to relocate to California for years. Early investor Frank Meehan told Bloomberg that Hassabis simply believes the UK can build the best AI companies. British AI minister Kanishka Narayan reportedly made Hassabis his first call after taking the job.Inside the London lab, the reaction has been jumpier. The FT quoted current and former DeepMind staff who fear the reorganisation marks the end of the research culture Hassabis protected, and one former executive at a rival firm said he had already fielded calls from people ready to move. Recruiters noticed within hours. Bloomberg reported that DeepMind staffers were posting on X about pitches from Prometheus Labs, Jeff Bezos’s AI startup, that referenced the shakeup directly.
Google’s Gemini strategy now runs on shipping speed, not research prestige
The commercial context is unforgiving. Alphabet is spending upwards of $200 billion this year and posted negative free cash flow in Q2 for the first time since going public. Gemini has 950 million monthly users and Gemma has passed 900 million downloads, yet Google trails Anthropic and OpenAI on coding agents and enterprise deployment—the two places enterprise money is actually moving. John Jumper, who shared the Nobel with Hassabis, has already left for Anthropic. Noam Shazeer went to OpenAI. Alphabet shares fell around 5 per cent on the news.Kavukcuoglu’s brief is narrow and brutal: ship faster. Whether he gets to do it on his own terms, with Brin a few feet away, is the question Google has not answered.