Gemini co-lead Noam Shazeer departs Google for OpenAI

Per CNBC, Noam Shazeer — a Transformer co-inventor, Character.AI founder, and Gemini co-lead after returning to Google — is leaving for OpenAI. The departure is a significant blow: Shazeer is among the most influential researchers in modern AI, and his exit comes just weeks after Google showcased Gemini 3.5 Flash and the Gemini Spark agent at I/O.

Paired with Nobel laureate John Jumper's move to Anthropic the same week, Google has lost two marquee figures in days, crystallizing how acute the AI talent war has become. For OpenAI, landing Shazeer ahead of a confidential IPO bolsters both its research bench and its recruiting narrative as it competes with Anthropic and Google for a tiny pool of frontier talent.

Google continues to ship: Gemini Live now accesses past chats, Memory, and Connected Apps, achieving parity with the main chat experience — a meaningful usability upgrade for its assistant. But the personnel story overshadowed the product news. The risk for Google isn't a single hire; it's the signal that even with Gemini's strong benchmark position, top researchers are choosing rivals. Watch whether retention packages and counter-hires follow, and whether Shazeer's move translates into visible OpenAI capability gains.