Nobel Laureate John Jumper Leaves Google DeepMind for Anthropic
TL;DR
- Jumper and Shazeer went to direct competitors rather than founding companies, making the losses harder for Google to frame as natural entrepreneurial churn.
- Hassabis responded with tribute language and no successor announcement, signaling DeepMind has no ready replacement for Jumper's structural biology work.
- Jumper was part of Google's coding tools team, which underperformed commercially, adding product failure context beyond the AlphaFold narrative.
Nobel laureate John Jumper, vice president at Google DeepMind and the researcher who led AlphaFold2, announced Thursday he is leaving after nearly nine years to join Anthropic. AlphaFold2 predicts three-dimensional protein structures and earned Jumper a share of the 2024 Nobel Prize in Chemistry alongside Demis Hassabis of DeepMind; the other half went to University of Washington professor David Baker. Born in 1985, Jumper became the youngest chemistry Nobel laureate in over 70 years.
The announcement, which The Next Web reported Jumper made on X, arrived one day after Gemini co-lead Noam Shazeer announced he was leaving Google for OpenAI. Shazeer co-authored the foundational 2017 "Attention Is All You Need" paper underlying modern large language models, and Google reportedly spent $2.7 billion to bring him back from Character.AI less than two years ago. Two significant departures in 48 hours is a notable sequence, and in AI, where individual researchers can determine a company's technical trajectory, the pattern draws attention.
For Anthropic, the hire fits a visible strategic direction. In April the company acquired Coefficient Bio for $400 million, a stealth biotech startup with fewer than 10 employees, mostly former Genentech researchers. A researcher of Jumper's background, whose career has been built on applying AI to structural biology, would slot naturally into that ambition.
The honest caveat is that neither Anthropic nor DeepMind disclosed Jumper's specific role, and what the reporting doesn't give you is whether he'll be doing scientific AI research, contributing to foundational model work, or something else. Jumper said he plans to take time to recharge before starting, so the shape of his contribution is still to come.
Anthropicappears to be assembling the people and companies needed for a serious push into life sciences, not just a biology-flavored chatbot. Whether that translates into tools that drug discovery teams and structural biologists actually depend on, or stays at the level of strategic positioning, is worth watching over the next few years.
What others are reporting
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Bloomberg Read →
Bloomberg moved the story as hard financial news within hours, elevating the departure into the same tier as market-moving leadership changes rather than a research personnel note.
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CNBC Read →
CNBC also classified the departure as financial news, corroborating Bloomberg's editorial judgment that the move carries market-level significance for Google's AI lab standing.
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TechCrunch Read →
TechCrunch adds that Jumper was part of Google's coding tools team, which has struggled commercially, layering product underperformance context onto the structural biology narrative.
GDM is a special place, and I'll still be excited to hear about what amazing things they discover next.
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The Decoder Read →
The only source with insider sourcing connecting the departures to weak confidence in Gemini 3.5 Pro, framing the talent losses as a product confidence problem.
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X (John Jumper) Read →
First-person announcement from Jumper; the gracious tone toward DeepMind and absence of any public criticism gives Google no grievance narrative to manage.
After nearly nine years, I have decided to leave Google DeepMind and join Anthropic.
Originally reported by The Next Web
Read the original article →Original headline: Nobel Laureate John Jumper Leaves Google DeepMind for Anthropic — AlphaFold Creator's Exit Follows Noam Shazeer's Move to OpenAI by One Day