Nobel Laureate John Jumper Leaves Google DeepMind for Anthropic

John Jumper, the Nobel Prize-winning scientist who led the development of DeepMind’s AlphaFold, announced on June 19, 2026 that he is leaving Google DeepMind after nearly nine years to join Anthropic. Jumper shared the 2024 Nobel Prize in Chemistry with DeepMind CEO Demis Hassabis for AlphaFold, an AI system that predicts the 3D structure of proteins from amino-acid sequences. AlphaFold’s public database now offers access to more than 200 million protein structure predictions, accelerating drug discovery and biological research worldwide.

The move is a significant talent acquisition for Anthropic and a notable loss for Google DeepMind. It comes just one day after Noam Shazeer, the Transformer co-inventor and Gemini co-lead, left Google for OpenAI — meaning Google lost two of its most celebrated AI researchers within 48 hours. Jumper’s specific role at Anthropic has not been detailed, but the hire aligns with Anthropic’s growing push into life sciences and computational biology. In April 2026, Anthropic paid approximately $400 million in stock to acquire Coefficient Bio, signaling serious investment in AI for biology.

Jumper wrote on X that DeepMind CEO Demis Hassabis “took a real chance letting me lead the AlphaFold team just six months after finishing my PhD” and called DeepMind “a special place.” He plans to take time to recharge before starting at Anthropic. The departure highlights the fierce talent war between frontier AI labs, where a limited pool of elite researchers commands enormous compensation and the freedom to shape scientific agendas.

Why it matters: The concentration of the world’s top AI-for-science talent at Anthropic signals that the next frontier of AI competition extends beyond chatbots into scientific discovery — and that even Nobel-winning researchers are willing to move between rival labs in pursuit of new impact.