Nobel Laureate John Jumper Leaves DeepMind for Anthropic

John Jumper, the Nobel Prize-winning co-creator of AlphaFold, is leaving Google DeepMind after nearly nine years to join Anthropic, the company behind Claude. Jumper announced the move on X, saying he would take some time to recharge before starting at his new employer and adding that “GDM is a special place, and I'll still be excited to hear about what amazing things they discover next.”

Jumper is among the most decorated scientists in the field. He shared the 2024 Nobel Prize in Chemistry with DeepMind CEO Demis Hassabis for AlphaFold, the AI system that predicts the three-dimensional structure of proteins from their genetic sequence. AlphaFold has since predicted the shapes of more than 200 million proteins — effectively the entire known protein universe — and reshaped how biologists approach drug discovery, enzyme design and basic research.

The hire fits a deliberate Anthropic strategy. Throughout 2026 the company has been assembling the infrastructure for serious AI-for-science work: opening wet labs, publishing research on AI agents built specifically for biological workflows, and announcing flagship partnerships with the Allen Institute and the Howard Hughes Medical Institute. Bringing in the person most associated with AI's biggest scientific breakthrough to date signals that Anthropic intends to compete with DeepMind not just on general-purpose models but on the science frontier where DeepMind has been strongest.

It also lands in the middle of an intensifying talent war. Alphabet shares slipped on the news, a reminder of how much markets weigh marquee researchers, and the departure follows a string of high-profile moves across the industry. For DeepMind, losing a Nobel laureate to a direct rival is a symbolic blow; for Anthropic — reportedly preparing for an IPO after a financing round that valued it among the most valuable AI companies in the world — it is a statement of ambition aimed squarely at the field's scientific high ground.

Jumper has not detailed what he will build at Anthropic, and he signaled he will rest before beginning. But the trajectory is clear enough: the lab that made its name on safety and on Claude's coding prowess is now staffing up to turn frontier models into instruments of discovery, and it has just hired one of the few people who has already done exactly that.