Demis Hassabis steps back as Google DeepMind CEO

Google DeepMind co-founder Sir Demis Hassabis is stepping back from day-to-day leadership of the AI research unit, transitioning from CEO to chair while also taking on the role of chief scientist at parent company Alphabet. The move marks a significant shift for the London-based lab that has been central to recent AI breakthroughs.

Hassabis, 50, who won the 2024 Nobel Prize in Chemistry for developing AlphaFold, will hand operational management to Koray Kavukcuoglu, who will serve as senior vice-president rather than CEO. The leadership change comes as Google faces intensifying competition in AI and internal tensions over military partnerships.

Loss of independence

Former Google executives say the restructuring signals DeepMind's full absorption into its Mountain View parent. "The era of DeepMind as an independent actor is over," one former executive told The Guardian, which first reported the story. The source noted that Kavukcuoglu is a technical leader rather than the "inspirational figure" Hassabis represented.

The shift also appears to move control back to California, where Google co-founder Sergey Brin is reportedly playing a larger role in AI development. Google merged its two AI labs—London-based DeepMind and California-based Google Brain—under Hassabis three years ago.

Competitive pressures mount

Google's latest Gemini models have lost ground to competitors Anthropic and OpenAI, according to former employees. The company's next cutting-edge model, Gemini 3.5 Pro, has reportedly been delayed as engineers work to improve its code-writing capabilities—a key strength of rival products.

The leadership change coincides with the departure of Jeff Dean, a veteran Google engineer and DeepMind's chief scientist, who is leaving to form an AI startup called Discovery Loop along with three other top researchers. Former AI researcher Jeremy Nixon warned that Dean's exit could trigger further talent losses, noting that "the primary reason people want to work at Google is because of him and Noam Shazeer and all these other phenomenal researchers."

Google maintains that attrition rates for AI talent in the first half of this year are lower than the same period last year.

Internal tensions

DeepMind employees have expressed concern over the company's Pentagon contracts and work that could potentially assist military operations. One former employee launched a legal challenge against Google earlier this year, claiming unfair dismissal over their views on Gaza. Another employee resigned in mid-July citing Google's work with the Pentagon and Department of Homeland Security.

Rosa Curling of campaign group Foxglove said Hassabis's departure "is likely to cause further concern among its frontier AI staff about how their work will end up being used in the real world."

Why it matters

The restructuring reflects a broader shift in the AI industry from science-driven research to commercial imperatives. As one former executive put it, "the science-driven agenda of leadership in these labs has given way to cold, hard commercial reality" as companies seek returns on hundreds of billions in AI investments. For business leaders, this signals that even the most prestigious AI labs are now firmly under corporate control, with product timelines and competitive pressures taking precedence over pure research.

Hassabis said he looks forward to focusing on the "big picture" for AI and recently called for a U.S. safety body to assess cutting-edge models, arguing the industry is approaching artificial general intelligence—systems capable of performing any human cognitive task.

Details were first reported by The Guardian.