Noam Shazeer leaves Google to join OpenAI as lead for architecture research; he rejoined Google as a Gemini co-lead in 2024 during the $2.7B Character.AI deal
Shazeer returned to Google in 2024 alongside other Character.AI personnel, under a non-exclusive technology agreement that reporting later characterized as chiefly aimed at bringing him back. An internal memo subsequently made him Gemini’s co-technical lead, working with Jeff Dean and Oriol Vinyals.
His move now reverses that high-profile retention effort and puts a researcher associated with Google’s generative-AI lineage in OpenAI’s architecture-research organization. It matters most as a transfer of senior technical leadership between two direct AI-platform rivals, rather than as a change to the underlying Character.AI agreement.
First-order effects
OpenAI adds Shazeer as lead for architecture research, strengthening its senior research leadership in a role tied to the design of future models and systems.
Google loses a Gemini co-lead whom it had specifically brought back through the 2024 Character.AI-related arrangement, requiring Gemini’s remaining leadership to absorb or reassign his responsibilities.
Second-order effects
The departure raises the cost of retaining scarce frontier-AI leaders for Google and peers: compensation, research autonomy, and clarity of technical ownership become more consequential competitive tools.
Character.AI’s earlier technology agreement remains non-exclusive, but the personnel rationale behind Google’s deal is weakened; the company’s value to Google shifts more toward the licensed technology and the teams that remain.
Third-order effects
If similar moves persist, competition among leading AI labs will be shaped not only by compute and product distribution but by rapid circulation of a small pool of researchers who can influence model architecture.
The episode also underscores the limits of talent-centered licensing or acquihire-style arrangements as long-term retention mechanisms: they can secure expertise quickly, but do not eliminate later mobility.
The trend: Frontier AI competition is increasingly a contest for durable technical leadership, with major labs using deals and research roles to recruit—and attempting to retain—the researchers who shape core model capabilities.
I'm excited to share that I'll be joining OpenAI and look forward to working with the exceptional team there. It was a difficult decision to move on. I'm incredibly proud of the amazing team at Google and everything we've built together. It has been an honor and a pleasure to
Very excited to welcome @NoamShazeer to OpenAI as our new lead for architecture research! His work on transformers, MoE, and efficient decoding have shaped modern AI. He's extremely AGI-pilled and is super thoughtful about making it all go well. Welcome, Noam!
Very much looking forward to work with Noam! I have said many times that the research culture in OAI is unparalleled in my opinion, and I can't wait to see what someone like Noam will do in such an environment.
So so excited — we're in a fast moving time and RSI seems increasingly close but human ingenuity has a role for at least a little while longer and I'm so honored to get an opportunity to work with Noam!
Noam's leaving Google makes Gemini's future feel uncertain. More than one DeepMind person has told me Noam saved Gemini. There's even lore that he tweaked a few lines of training code and Gemini's quality instantly jumped. Gemini's coding ability still feels behind. I really
Noam Shazeer - co-author of the Transformer, T5, and Switch Transformer papers, and one of the pioneers of sparse MoE models - is leaving his VP Engineering / Gemini co-lead role at Google DeepMind to join OpenAI This is likely the most significant AI talent move of the year.
cold open: google campus. a conference room named “moonshot serenity 4b.” twelve people are in a meeting titled: pre-sync for sync alignment on ai velocity. sundar sits calmly at the head of the table. a pm clicks to slide 1 of 187. “the agenda today is simple,” she says. “how
“Google licensing Character AI for $2.7B to get Noam has to be one of the worst 4 deals since AOL x Time Warner. It's like if the Lakers signed Dwight Howard...but for $900M...on an expiring contract...and got bounced in the first round...and then he left...for the CELTICS” [imag…
Really glad Dean is joining OpenAI. He's spent a lot of time thinking seriously about the biggest questions frontier labs need to get right: risk, governance, frontier policy issues, and what comes next. We won't always agree on everything, which is a good thing. This is a really
I'm simultaneously very happy for Dean, but also sad to have another extremely bright, independent voice join the labs. At least OpenAI is more willing to let people speak freely. I hope that can continue.
Twitter community, I would like you to perform a public service. Please take a moment to calibrate how unhinged Dean's posting has been. Now, resolve that you will dunk on his ass if he lets incentives make him noticeably less unhinged. Dean, we're watching, and rooting for you.
I am pleased and honored to announce that, on July 6, I'll be joining @OpenAI as leader of a new team called Strategic Futures. Our mandate will be to help the company's leadership shape frontier AI policy. There is a ton of work to do, and I'm excited to get started. [image]