Gemini Co-Lead Noam Shazeer Leaves Google for OpenAI
On June 17, 2026, Noam Shazeer—Google vice president of engineering and co-lead of Gemini, Transformer co-author, and Character.AI co-founder—announced he is leaving Google to join OpenAI. The move comes less than two years after Google’s reported $2.7 billion Character.AI-linked rehire that returned him to lead Gemini work, and as OpenAI advances its confidential IPO process.
TLDR
Noam Shazeer, a defining figure of modern deep learning and Gemini co-lead at Google, said on June 17, 2026 that he will join OpenAI. In an X post he called the decision difficult, praised his Google team, and said he looks forward to OpenAI’s “exceptional team.” Reuters, CNBC, and TechCrunch framed the jump as one of 2026’s largest talent shifts—especially after Google spent heavily to reclaim him from Character.AI in 2024.
Who Shazeer is and what he said
- Background: Longtime Google AI researcher; co-author of the Transformer (“Attention Is All You Need”) paper; left Google around 2021 to co-found Character.AI; returned in 2024 via a deal widely reported near $2.7 billion that brought him back as a Gemini leader.
- Role at Google: VP of engineering; co-lead of Gemini.
- Announcement: June 17 (Wednesday) X post—joining OpenAI; proud of Google team and what they built.
- OpenAI context: Company had confidentially filed an S-1 on June 8; Sam Altman publicly welcomed the hire in contemporaneous coverage, citing long-standing interest in working with Shazeer.
TechCrunch also noted OpenAI recruiting other policy/talent figures the same week (e.g., Dean Ball for a Strategic Futures policy role announced June 18).
Why this story matters
Frontier labs compete as much for people who can invent architectures as for GPUs. Losing a Transformer co-author and Gemini co-lead to a direct rival—after a multi-billion rehire—signals where elite researchers believe the next model leaps (and IPO upside) will land. For Google, it is a high-profile setback in the Gemini race; for OpenAI, a pre-IPO talent coup.
Sources
- Noam Shazeer X announcement (June 17, 2026).
- Reuters: “Google Gemini co-lead Noam Shazeer to join IPO-bound OpenAI” (June 17, 2026).
- CNBC and TechCrunch coverage of the departure and OpenAI IPO-context talent moves (June 17–18, 2026).
Featured Image Alt Text
Split Google Gemini and OpenAI logos with abstract transformer attention pattern representing Noam Shazeer’s move.
Tags
Noam Shazeer, OpenAI, Google, Gemini, Talent War, Transformer