Google set to lose two AI researchers to Anthropic and OpenAI amid growing talent exodus

Google just lost two of its most important AI minds in the span of 48 hours. John Jumper, the Nobel Prize-winning scientist behind AlphaFold, is heading to Anthropic. Noam Shazeer, co-lead of Google’s Gemini models and a co-author of the transformer paper that essentially birthed modern AI, is going to OpenAI.

Wall Street’s reaction was about as gentle as you’d expect. Alphabet shares dropped roughly 5%, erasing an estimated $270 billion in market capitalization.

Two departures, one very bad week

Jumper confirmed his exit on June 19 after nearly nine years at Google DeepMind. He shared the 2024 Nobel Prize in Chemistry for his work on AlphaFold, the protein-structure prediction system that transformed computational biology. He reportedly plans to take some time to recharge before starting at Anthropic, the Claude-maker founded by former OpenAI researchers Dario and Daniela Amodei.

Shazeer’s departure, which happened around June 18, carries its own particular sting. He was one of the eight authors of “Attention Is All You Need,” the 2017 paper that introduced the transformer architecture.

Here’s the thing that makes Shazeer’s exit especially painful for Google: the company already lost him once. Shazeer left Google previously to co-found Character.AI, a chatbot startup. Google then invested over $2 billion to bring his team back.

What this means for investors

The $270 billion market cap hit tells you how seriously investors are taking this. It’s not just about two people leaving. It’s about what their departures signal regarding Google’s competitive positioning in a field where human capital is arguably the most important asset.

For Anthropic, landing Jumper is a significant credibility boost, particularly in the scientific applications of AI. AlphaFold demonstrated that AI could produce genuinely novel scientific breakthroughs, not just generate text or images.

OpenAI acquiring Shazeer gives it someone who literally helped invent the foundational technology the entire industry runs on.

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