Nobel laureate John Jumper, a key architect of the AlphaFold AI model, announced Friday that he is leaving Google DeepMind after nearly nine years to join rival AI company Anthropic. The move, disclosed in a post on X, marks another high-profile departure from the Alphabet-owned lab and signals Anthropic’s aggressive push to recruit top-tier AI talent.
A decade of scientific achievement
Jumper wrote that DeepMind CEO Demis Hassabis “took a real chance letting me lead the AlphaFold team just six months after finishing my PhD, and the entire GDM team taught me so much about how to do great science.” He added, “GDM is a special place, and I’ll still be excited to hear about what amazing things they discover next.”
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Jumper and Hassabis won the 2024 Nobel Prize in Chemistry for their work on AlphaFold, an AI model that can predict the 3D structure of proteins based solely on their genetic sequences. The breakthrough has been hailed as one of the most significant scientific advances enabled by AI, with applications in drug discovery, enzyme design, and fundamental biology.
Anthropic’s talent acquisition spree
Jumper’s move to Anthropic comes as the company, founded by former OpenAI employees, continues to build out its research team. According to Bloomberg, Jumper was also a key member of Google’s team developing coding tools, an area where the company has struggled to gain commercial traction. His expertise could help Anthropic strengthen its own coding and scientific AI capabilities.
The departure follows another notable exit this week: Character AI co-founder Noam Shazeer announced he is leaving DeepMind to join OpenAI. Shazeer had returned to Google when the search giant acquired Character AI last year.
Implications for the AI talent war
The string of departures from DeepMind highlights the intense competition for AI researchers among leading labs. DeepMind, long considered a crown jewel of AI research, has seen several key figures leave in recent years, including co-founder Mustafa Suleyman, who now leads Microsoft AI.
For Anthropic, landing a Nobel laureate of Jumper’s stature is a significant coup. The company has positioned itself as a safety-focused alternative to OpenAI, and Jumper’s background in scientific AI could open new research directions. For DeepMind, the loss of a researcher who led one of its most celebrated projects is a blow, though the lab retains a deep bench of talent under Hassabis’s leadership.
Frequently Asked Questions
When did John Jumper announce his departure from DeepMind?
He announced it on X on Friday, June 20, 2026, stating he was leaving after nearly nine years to join Anthropic.
Is John Jumper the only DeepMind researcher to leave this week?
No. Character AI co-founder Noam Shazeer also announced his departure from DeepMind this week, though he is joining OpenAI rather than Anthropic.
What does Anthropic do?
Anthropic is an AI safety and research company founded by former OpenAI employees. It develops large language models, including the Claude family of AI assistants, and focuses on building reliable and interpretable AI systems.
How does AlphaFold work?
AlphaFold uses deep learning to predict the 3D structure of proteins from their amino acid sequences. It was trained on a large database of known protein structures and can generate highly accurate predictions, often matching experimental methods.
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