Google DeepMind eliminated its CEO title as Hassabis moved to AGI strategy

On 5 August 2026, Google DeepMind's cofounder CEO Demis Hassabis — who shared the 2024 Nobel prize in chemistry for AlphaFold — gave up the CEO title, becoming chairman of the unit and Alphabet's chief scientist. The company framed it as formalizing a shift away from day-to-day management toward AGI strategy and the scientific applications of AI. In a note to staff he wrote that AGI is close at hand, that getting the next steps right is critical for humanity, and that he would spend more time at Isomorphic Labs, Alphabet's AI drug discovery unit.

Daily operations passed to Koray Kavukcuoglu, DeepMind's CTO and Alphabet's chief AI architect, who took the role of senior vice president of Google DeepMind — deliberately no standalone CEO title — reporting to Sundar Pichai and overseeing Gemini model development. Hassabis's note touted 'great progress' on new models, naming the unreleased Gemini 4. Alphabet shares fell around 5% on the news.

The reshuffle landed the same day as another departure: Jeff Dean, Google's chief scientist and a 27-year veteran, left to cofound Discovery Loop, a public benefit corporation to automate machine learning, science and engineering research, joined by Sanjay Ghemawat, Oriol Vinyals and Quoc Le. Alphabet is a founding investor in the new company and will supply cloud compute.

The timing was difficult: Gemini 3.5 Pro, the next flagship model, ran months behind its original June launch target, after a string of exits from Gemini's leadership and research ranks — Gemini co-lead Noam Shazeer to OpenAI, Nobel laureate John Jumper to Anthropic. Pichai maintained in his note that Google had the talent, compute and distribution to compete.

Alphabet shares fell about 5% on the day; the upside hinges on the unreleased Gemini 4 that Hassabis cited as 'great progress'

Hassabis believes AGI is close at hand and wants his own time on AGI strategy and the scientific applications of AI.

Gemini 3.5 Pro, the next flagship, was months behind its original June 2026 launch target.

Gemini's leadership and research ranks were draining: Noam Shazeer left for OpenAI and John Jumper for Anthropic.

Folding daily operations into an SVP who reports to Pichai puts the lab inside Google's chain of command.

Isomorphic Labs, which Hassabis calls AI's top application for human health, needs more of his time.

Splitting 'where is AGI going' from 'ship the model' lets a founder-scientist stay scientific while an operator answers for delivery — expect the market to bill you for the ambiguity first.

The immediate verdict was a roughly 5% drop in Alphabet shares. Dean's exit went ahead as described: he told the New York Times that operating outside a public company gives the team room to make calls that are not in the company's purest financial interests, and Pichai publicly backed the move in his note to staff. Fortune's report, from the day of the announcement, gives no operational results for the new structure — the bet is that separating AGI strategy from model delivery fixes the delays and the talent drain, and that will only show in Gemini's release cadence.