On Friday, June 19, 2026, John Jumper — co-recipient of the 2024 Nobel Prize in Chemistry — announced on X that he is leaving Google DeepMind after nearly nine years to join rival Anthropic. TechCrunch reported the move on June 20. He was not the only star researcher to exit Google that week: Noam Shazeer, co-author of the Transformer paper and co-lead of Gemini, announced his own departure three days earlier, with OpenAI as his destination.
Nine Years at DeepMind Come to a Close
Jumper’s departure note was measured and generous. He recalled that DeepMind CEO Demis Hassabis “took a real chance letting me lead the AlphaFold team just six months after finishing my PhD,” and that “the entire GDM team taught me so much about how to do great science.” He added that “GDM is a special place, and I’ll still be excited to hear about what amazing things they discover next.”
For DeepMind, the loss is heavier than a title suggests. Jumper is the public face of the lab’s “AI for science” line of work, and where he lands is itself a vote on which labs are worth a top researcher’s next decade.
AlphaFold and the Nobel Prize in Chemistry
Jumper shared the 2024 Nobel Prize in Chemistry with Demis Hassabis for AlphaFold, the AI system that predicts a protein’s three-dimensional structure from its amino acid sequence. It turned one of structural biology’s slowest and most expensive experimental problems into something close to instant computation — and turned “AI for science” from a slogan into a Nobel-worthy track record. AlphaFold’s structure predictions have since become routine infrastructure for drug discovery and molecular biology, which is why the system’s co-creator carries a weight that few AI researchers anywhere can match.
Bloomberg’s reporting adds a telling detail: in recent years Jumper was also a key member of Google’s team building coding tools, a product area where Google has struggled on the enterprise side — and precisely the product line where Anthropic is strongest. That background makes the landing spot look deliberate: science and coding are the two axes along which Anthropic has been expanding most aggressively.
The Same Week: Shazeer Heads to OpenAI
The timing makes the exodus dramatic. On Wednesday, June 17, Character AI co-founder Noam Shazeer announced he was leaving Google. He had been at the company for more than two decades — apart from a three-year Character AI stint that ended when Google brought him and his team back through a $2.7 billion deal in 2024 — and he co-authored the 2017 paper “Attention Is All You Need,” the architectural foundation of modern generative AI.
TechCrunch reports that OpenAI, racing toward its IPO, is bringing him on board — and Shazeer is not the only name arriving: the same reporting notes OpenAI is also hiring Dean Ball, a former White House AI policy official, to lead a new Strategic Futures team covering catastrophic risk, recursive self-improvement, and the ties between frontier labs and governments. Within a single week, Google DeepMind lost both a Nobel-caliber scientist and a co-inventor of the Transformer, and the beneficiaries were its two most direct competitors.
What the Talent Flow Means for the Frontier Race
There are a few ways to read this wave. For Anthropic, hiring Jumper reinforces its “AI for science” narrative and continues a recent rhythm of landing heavyweight researchers. For OpenAI, Shazeer’s arrival adds the most important name yet to its pre-IPO research story. For Google, it is one more reminder that the loyalty of top researchers is being repriced by the frontier race — by compensation, equity, and the freedom to chase a specific research agenda. And for everyone else building AI products, it is a signal that the people who invented the field’s foundational techniques are still in play, and still movable.
Two threads are worth following. First, how Hassabis reorganizes the leadership of AlphaFold and the broader science teams — Jumper ran that group since before the Nobel, and succession there shapes DeepMind’s scientific identity. Second, whether Jumper’s actual remit at Anthropic leans toward scientific research or toward coding products. Either way, the third week of June 2026 now has a firm footnote in the history of AI talent migration.
Sources
- Nobel laureate John Jumper is leaving DeepMind for rival Anthropic — TechCrunch
- OpenAI is bringing on some big guns in the lead-up to its IPO — TechCrunch
AI-assisted summary compiled from the sources above, reviewed by a human before publishing.