Key Researchers Noam Shazeer and John Jumper Depart Google for OpenAI and Anthropic

• Early careers and Google’s big bet
• Mid‑June: Shazeer exits for OpenAI
• June 19–20: Jumper heads to Anthropic
• A visible hit to Google in a ‘celebrity era’ of AI

Key Researchers Noam Shazeer and John Jumper Depart Google for OpenAI and Anthropic Google’s AI crown jewels are on the move, as two of its most celebrated researchers defect in the same week to archrivals OpenAI and Anthropic — a stark signal of how fiercely the labs are competing to own the future of artificial intelligence.

§Early careers and Google’s big bet

Noam Shazeer spent about two decades at Google, emerging as a “foundational mind” behind modern generative AI and co‑authoring the 2017 “Attention Is All You Need” paper that introduced the Transformer architecture. Google even paid roughly $2.7 billion in 2024 to bring him and part of his Character.AI team back in an acqui-hire style deal.

John Jumper joined Google DeepMind in 2017 and went on to lead the AlphaFold team, whose open‑source protein-structure model reshaped biology and medicine. In 2024, he and DeepMind CEO Demis Hassabis shared the Nobel Prize in Chemistry for that breakthrough.

§Mid‑June: Shazeer exits for OpenAI

On June 18, reports confirmed that Shazeer, a Gemini vice president of engineering and co‑lead, was leaving Google DeepMind to join OpenAI. Business Insider framed the move as part of an escalating “AI talent war.” TechCrunch noted that OpenAI is “bringing on some big guns” ahead of its IPO, pairing Shazeer with former Trump AI policy official Dean Ball.

OpenAI CEO Sam Altman publicly welcomed Shazeer with a characteristically wry compliment: “We offer no explanation as to why Noams are so good at AI; we attribute their success, as all else, to divine benevolence.”

§June 19–20: Jumper heads to Anthropic

Two days later, Nobel laureate Jumper announced he would leave DeepMind after “nearly 9 years” to join Anthropic, following a short break. The Verge highlighted that Google’s “Nobel Prize‑winning AI researcher is joining Anthropic,” underlining the symbolic weight of the move.

Hassabis responded with praise, calling their nine‑year collaboration “extraordinary” and saying AlphaFold “changed the world” and showed what AI can do for science and medicine.

§A visible hit to Google in a ‘celebrity era’ of AI

By June 23, Business Insider argued that “the AI talent wars are heating up again” and that “in the battle for stars, Google is losing out,” citing Shazeer and Jumper alongside other high‑profile moves to Anthropic and OpenAI. Axios likewise concluded that “Google takes the hit in AI’s talent war,” noting that Shazeer and Jumper are genuine lab‑to‑lab defections at a time when top researchers are weighing not just pay, but access to compute, IPO upside and how responsibly leadership will wield AI power.

Behind the individual career choices, the rapid‑fire departures encapsulate a broader shift: as AI research races toward more powerful systems, a handful of star scientists are being treated as strategic assets capable of tipping the balance among the world’s leading labs.

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