John Jumper, who won the Nobel Prize “for protein structure prediction”, says he is leaving Google DeepMind after nearly nine years to join Anthropic

A bit of news: After nearly 9 years, I have decided to leave Google DeepMind and join Anthropic (after taking some time to recharge). I am incredibly grateful for my time at GDM. @demishassabis took a real chance letting me lead the AlphaFold team just six months after finishing

@johnjumpersci 2026-06-20 John Jumper

Context & Ripple Effects

Jumper’s work at Google DeepMind is tied in the coverage to AlphaFold, a research program described as having changed biology and chemistry; later interviews also focused on combining its predictive-AI approach with LLMs. His move therefore carries significance beyond a routine staffing change.

The related reporting places the departure within Google’s competition with Anthropic and OpenAI, while Anthropic is expanding both its policy activity and its enterprise implementation efforts.

First-order effects

Google DeepMind loses a long-tenured scientific leader closely associated with AlphaFold just as it is applying AI across areas including weather and bioresilience.
Anthropic gains a researcher with experience leading a high-impact scientific-AI program, after Jumper’s stated recharge period.

Second-order effects

The move raises the competitive value of researchers who can connect frontier-model development with domain-specific scientific applications, an area DeepMind has publicly emphasized through AlphaFold and bioresilience work.
For Google, retaining continuity in scientific AI leadership becomes more consequential as rivals can recruit not only general-model talent but leaders with proven research-program execution.

Third-order effects

If comparable moves persist, competition among frontier labs will increasingly extend from model capability to the ability to attract and organize interdisciplinary teams for scientific and commercial deployment.
The case also points to a more fluid AI-lab talent market in which individual research leaders can materially shift perceived strength in specialized fields, though the practical impact will depend on Jumper’s role and resources at Anthropic.

The trend: Frontier AI competition is broadening from general-purpose models into a contest for the scientific talent and organizational capacity to turn AI research into domain-specific systems.

Discussion

@demishassabis Demis Hassabis on x
Thanks John for an extraordinary partnership and wonderful collaboration over the past 9 years! What we achieved with AlphaFold changed the world, and showed the field what was possible with AI for science and medicine, lighting the way for how AI can benefit humanity.
@woke8yearold Aleph on x
Google is getting crushed. I have no idea what they are doing Alternative reading: it's over and no one is catching Anthropic and OpenAI, all top talent will defect to them
@theo @theo on x
Gemini's current position reminds me of Llama's position early last year
@nc_frey Nathan C. Frey on x
excited to welcome @JohnJumperSci to @AnthropicAI ! John's work on AlphaFold opened the door for me and many other recovering physicists to contribute to this field. we need many more “AlphaFold moments” in AI x Bio and I'm stoked to have John on board
@ai_for_success AshutoshShrivastava on x
🚨 John Jumper, Nobel Prize winner is leaving Google DeepMind after 9 years to join Anthropic. Yesterday it was Noam Shazeer joining OpenAI. Today it's John Jumper joining Anthropic. What's happening 👀
@bonegpt Bone on x
nominative determinism strikes again
@ns123abc Nik on x
“Sir... John Jumper... the director of DeepMind... the co-creator of AlphaFold... the man who won the Nobel Prize with you... sir... he just announced he's leaving Google DeepMind and joining Anthropic...” [image]
@natebjones Nate on x
Noam to OpenAI and now John headed to Anthropic It's a two horse race at the frontier. Google is effectively out.
@yuchenj_uw Yuchen Jin on x
John Jumper is a Nobel laureate who won the 2024 Nobel Prize with Demis Hassabis. Now he's leaving Google DeepMind too, right after Noam Shazeer. What is going on at Google DeepMind? I had really high hopes for Gemini.
@antonpme Anton P. on x
🤯 That's a bit concerning... Google is losing big AI specialists: Noam Shazeer → OpenAI John Jumper → Anthropic Given that we still haven't seen the promised Gemini 3.5 Pro, things aren't looking particularly bright for the Google empire.
@zephyr_z9 @zephyr_z9 on x
Anthropic is beefing up its Biology/Chemistry AI team
@kimmonismus @kimmonismus on x
What the fu*k!! John Jumper, one of the key figures behind AlphaFold and co-winner of the Nobel Prize alongside Demis Hassabis, is leaving Google DeepMind to join Anthropic. Huge loss for, and an insane win for Anthropic! What is happening, especially at google?
@andrewcurran_ Andrew Curran on x
Another huge hire by Anthropic. He won the Nobel with Sir Demis for developing AlphaFold. Talent continues to concentrate at OpenAI and Anthropic.
@chrissgpt Chris on x
Anthropic gets John, Nobel prize winner with Sir Demis for creating AlphaFold. And OpenAI gets Noam, creator of the transformer architecture. I love how this timeline feels like a movie 🍿
@pushmeet Pushmeet Kohli on x
@JohnJumperSci , you have been a fantastic colleague. I am deeply grateful for all your invaluable contributions to the @GoogleDeepMind Science program. From the mission-focused execution on AlphaFold to the amazing Nobel ceremony- you leave us with a lot of memories. We wish
@lexnlin Leon Lin on x
Crazy Another goat left DeepMind to join Anthropic I wonder why 🤔
@basedjensen @basedjensen on x
Another big name leaves google
@8teapi Prakash on x
Anthropic gets a Nobel prize winner. wow
@kylebrussell Kyle Russell on x
folks getting pulled out of lumbering Google is its own kind of acceleration
@zephyr_z9 @zephyr_z9 on x
Thomas Kurian should have allocated compute to GDM rather than selling it to Anthropic and others
@stalkermustang Igor Kotenkov on x
If the departure of John and Noam is somehow related to the quality of the soon-to-be-released G 3.5 Pro, well, this really means that there are only 2 players left. xAI is far behind (even with Cursor under the belt), Meta is, well, doing data annotation. Anthropic has the
@quanquangu Quanquan Gu on x
After solving protein structure prediction, the next frontier is designing therapeutics. Foundation models has transformed language. They will transform biology next. AI for drug discovery is no longer just a niche application, it's becoming a frontier AI problem.
@haider1 Haider on x
what exactly is going on at google DeepMind? in the span of two days: - noam shazeer (transformer co-author) leaves google for openai - john jumper (nobel laureate and AlphaFold lead) leaves DeepMind for anthropic i think google isn't fully aligned on what to focus on [image]
@swyx @swyx on x
Anthropic is going to IPO at $2T
@davidiach David Iach on x
Fascinating just how fast talent gets absorbed by the two super labs. John was awarded the Nobel Prize for AlphaFold.
@ruoshuiresearch Ruo Shui on bluesky
frontier model wise, it's a duopoly with Anthropic in pole position [embedded post]
@ai-nerd @ai-nerd on bluesky
jumper shared the nobel with demis hassabis for alphafold ... and now half of that prize-winning duo is leaving hassabis's own lab for anthropic. that's two weeks after noam shazeer walked out for openai [embedded post]
r/claude r on reddit
Anthropic's Dario is on a mission—assembling a Team of AI Avengers.
r/singularity r on reddit
Nobel Winner John Jumper to Leave Google DeepMind for Anthropic
r/technology r on reddit
Nobel Winner John Jumper to Leave Google DeepMind for Anthropic

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