What did John Jumper say in his announcement?

John Jumper posted on X on June 19, 2026 that he is leaving Google DeepMind after nearly nine years to join Anthropic, and that he plans to take time to recharge before starting his new role. He did not give a specific start date or describe what he will work on at Anthropic.

What will John Jumper do at Anthropic?

Anthropic has not yet disclosed John Jumper's role. Anthropic does not currently ship a protein-folding model, so observers expect his focus to broaden beyond AlphaFold-style biology and into the foundational research that underpins Claude. The lab has separately said Jumper will stay at Google DeepMind through the end of 2026 to help with the transition.

How does this compare to Noam Shazeer's move to OpenAI?

John Jumper's announcement comes two days after Noam Shazeer, Google's Gemini co-lead and 'Attention Is All You Need' co-author, said he is joining OpenAI as Lead for Architecture Research. Both departures take senior Google research leaders to direct frontier-lab rivals in a single week, intensifying the 2026 AI talent war.

Why does this matter for Google DeepMind?

John Jumper led the AlphaFold work that won Demis Hassabis and Jumper the 2024 Nobel Prize in Chemistry, and that anchors DeepMind's science-AI reputation. Losing him along with Noam Shazeer in the same week removes two of the lab's most visible technical leaders during a period when Google is defending Gemini's market share against Anthropic and OpenAI.

Anthropic · 2026-06-19 · major

John Jumper to Anthropic — Nobel laureate AlphaFold creator leaves DeepMind

John Jumper, the 2024 Nobel chemistry laureate and AlphaFold co-creator, posted on X that he is leaving Google DeepMind after nearly nine years to join Anthropic. He is the second senior Google AI departure this week after Noam Shazeer.

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Nobel chemistry laureate and AlphaFold co-creator John Jumper is leaving Google DeepMind after nine years to join Anthropic.

Quick facts

Who	John Jumper, 2024 Nobel chemistry laureate
From	Google DeepMind (VP and Engineering Fellow)
To	Anthropic
Tenure at DeepMind	Nearly 9 years
Announced	June 19, 2026 (via X)
New role	Not yet disclosed
Transition	Stays at DeepMind through end of 2026

What is it?

John Jumper announced on X on June 19, 2026 that he is leaving Google DeepMind, where he has been a vice president and Engineering Fellow for nearly nine years, to join Anthropic. Jumper shared the 2024 Nobel Prize in Chemistry with Demis Hassabis for AlphaFold, the deep-learning system that predicted the structure of more than 200 million proteins.

How does it work?

Anthropic has not disclosed Jumper's title or focus area, and Jumper said on X he will take a break before starting. Google DeepMind told reporters he will stay through the end of 2026 to help hand off ongoing work. Anthropic does not currently ship a protein-folding product, so observers expect Jumper's remit to be broader than the AlphaFold line he led at DeepMind.

Why does it matter?

Two of Google's most senior AI researchers have left for direct rivals in three days: Noam Shazeer to OpenAI on June 17, and now John Jumper to Anthropic. The Jumper move strips DeepMind of the public face of its Nobel-winning science-AI program and pulls that credibility toward Anthropic ahead of OpenAI's expected IPO. For researchers, it signals that the most consequential biology-AI work may now happen outside Google.

Who is it for?

researchers and labs tracking where Nobel-tier AI leaders work next

Frequently asked questions

What did John Jumper say in his announcement?: John Jumper posted on X on June 19, 2026 that he is leaving Google DeepMind after nearly nine years to join Anthropic, and that he plans to take time to recharge before starting his new role. He did not give a specific start date or describe what he will work on at Anthropic.
What will John Jumper do at Anthropic?: Anthropic has not yet disclosed John Jumper's role. Anthropic does not currently ship a protein-folding model, so observers expect his focus to broaden beyond AlphaFold-style biology and into the foundational research that underpins Claude. The lab has separately said Jumper will stay at Google DeepMind through the end of 2026 to help with the transition.
How does this compare to Noam Shazeer's move to OpenAI?: John Jumper's announcement comes two days after Noam Shazeer, Google's Gemini co-lead and 'Attention Is All You Need' co-author, said he is joining OpenAI as Lead for Architecture Research. Both departures take senior Google research leaders to direct frontier-lab rivals in a single week, intensifying the 2026 AI talent war.
Why does this matter for Google DeepMind?: John Jumper led the AlphaFold work that won Demis Hassabis and Jumper the 2024 Nobel Prize in Chemistry, and that anchors DeepMind's science-AI reputation. Losing him along with Noam Shazeer in the same week removes two of the lab's most visible technical leaders during a period when Google is defending Gemini's market share against Anthropic and OpenAI.