Google Loses Senior AI Researchers to Rivals: Shazeer to OpenAI, Jumper to Anthropic

In mid-June 2026, Google lost two of its most prominent AI researchers to direct rivals within 24 hours. Noam Shazeer — co-author of the 2017 'Attention Is All You Need' transformer paper, Google VP of Engineering, and Gemini co-lead — is joining OpenAI [2][16], less than two years after Google paid $2.7 billion to reacquire him via the Character.AI deal [2]. The following day, John Jumper — who shared the 2024 Nobel Prize in Chemistry with Demis Hassabis for AlphaFold and spent nearly nine years at Google DeepMind — announced he is joining Anthropic [9][10]. The two researchers are going to different rivals, spreading the talent gain across Google's competitive landscape.

The paired departures remove foundational research talent from Google across its two most visible AI fronts: large language models (Shazeer) and biological AI (Jumper). The $2.7 billion Google spent in 2024 to bring Shazeer back makes his exit financially as well as technically significant. Both researchers now work directly against Google at its primary competitors.

Noam Shazeer co-authored 'Attention Is All You Need' in 2017, the paper that introduced the transformer architecture now underlying virtually every major language model [1]. After leaving Google to co-found Character.AI, he was brought back in 2024 as part of a roughly $2.7 billion deal in which Google acquired a technology license and reabsorbed Character.AI's talent [2]. Google placed him as VP of Engineering and co-lead of its Gemini model line [3][4]. His departure to OpenAI, reported by Reuters and CNBC on June 18, 2026, effectively ends that investment within two years [2][5]. Multiple outlets including Axios and Business Insider confirmed the move [5][6].

John Jumper's departure was reported the following day. Jumper led the team at Google DeepMind that built AlphaFold, the protein-structure prediction system that resolved a decades-old problem in computational biology [7][8]. He and DeepMind CEO Demis Hassabis were awarded the 2024 Nobel Prize in Chemistry for that work [9]. After nearly nine years at the lab, Jumper announced he is joining Anthropic [10][9]. Bloomberg and The Next Web confirmed the move [10][11]. Business Insider described him as the AlphaFold pioneer who solved a 50-year-old problem in biology [12].

The two moves drew wide attention because they came within roughly 24 hours of each other and because each researcher is going to a different Google rival — Shazeer to OpenAI, Jumper to Anthropic. Multiple commentators noted that Google lost the co-inventor of the transformer to one competitor and the creator of AlphaFold to another in the same week [13][14]. A separate data point cuts in the other direction: Barret Zoph, a prominent AI researcher who had joined OpenAI, reportedly left that organization after only five months [15], a reminder that talent instability is not limited to Google.