Three days after reports emerged that four Google DeepMind researchers had moved to Anthropic, Demis Hassabis gave Semafor an exclusive on June 23: Google, he said, was still winning the AI talent contest. The claim deserves scrutiny, because the organisational structure Hassabis runs is unlike anything else in the field.
What Hassabis said, and the context around it
In a Semafor exclusive published June 23, Hassabis countered the narrative of a talent drain at Google DeepMind, saying the lab continues to recruit competitively. The interview followed an Eastern Herald report on June 26 detailing that four DeepMind researchers had joined Anthropic within a single week.
The departures are real but need scaling. Google DeepMind employs approximately 3,000 researchers following the 2023 merger of Google Brain and the original London-based DeepMind. Four departures in a week is a fraction of one percent of headcount. What matters more is the seniority and specialisation of those who leave, which neither Hassabis nor the subsequent reports have specified by name.
The broader structural context: OpenAI itself was seeded in large part by Google Brain alumni, and Anthropic was founded by former OpenAI researchers. The wave of researcher exits from big-compute labs to well-funded startups is not new; what is new is that Anthropic's $47B ARR valuation and $965B implied enterprise value now makes it a credible destination for researchers who want both mission and financial upside.
Isomorphic Labs: the retention argument Hassabis can make that others cannot
The most concrete card Hassabis holds is Isomorphic Labs. In May 2026, the company closed a $2.1 billion Series B led by Thrive Capital, with participation from Alphabet, GV, MGX, Temasek, CapitalG, and the UK Sovereign AI Fund, bringing its total raised to $2.7 billion. The round followed a $600 million Series A in 2025, also steered by Thrive.
