Key Takeaways
- Jonas Adler and Alexander Pritzel, instrumental figures in Google’s Gemini development, are departing for Anthropic
- Recent exits also include Nobel Prize winner John Jumper moving to Anthropic and prominent researcher Noam Shazeer joining OpenAI
- Pre-IPO stock options at competing AI startups appear to be the main financial motivator for these transitions
- Google reallocated computational resources from one of Shazeer’s initiatives just before his OpenAI announcement
- Shazeer previously earned hundreds of millions from a $2.7 billion Google licensing agreement following his Character.AI venture
Google’s AI division is experiencing a significant talent drain. Reports emerged Wednesday from Bloomberg indicating that Jonas Adler and Alexander Pritzel, both integral to the development of Google’s Gemini AI platform, are preparing to transition to Anthropic.
Alphabet (GOOGL) stock declined 0.30% following the announcement. These departures arrive on the heels of Nobel Prize recipient John Jumper’s move to Anthropic and prominent scientist Noam Shazeer’s decision to join OpenAI just days earlier.
Adler specialized in Google’s artificial intelligence coding initiatives. Pritzel concentrated on AI system training methodologies. Both researchers were regarded as essential internal assets working on Gemini.
This succession of departures has unsettled market participants and sparked renewed concerns about Google’s capacity to retain the specialized talent necessary to maintain its competitive edge.
A Google spokesperson referenced statements from Google DeepMind CEO Demis Hassabis, emphasizing the company’s continued confidence in its AI talent pipeline. Anthropic has not provided public commentary.
The Appeal of Pre-IPO Compensation
The economic incentives are substantial. Anthropic and OpenAI are both widely anticipated to pursue initial public offerings, with potential listings expected in late 2026 or throughout 2027.
For top-tier AI scientists, transitioning from a $4 trillion publicly traded corporation to a pre-IPO venture represents one of the most direct routes to exceptional wealth creation. While restricted stock units at Google provide competitive compensation packages, the upside potential is relatively fixed. Equity stakes in rapidly expanding pre-IPO AI companies present an entirely different financial equation.
Shazeer’s professional trajectory exemplifies this dynamic. He departed Google in 2021 to establish Character.AI, after which Google structured a $2.7 billion licensing arrangement that facilitated his return. According to the Wall Street Journal, this transaction netted him hundreds of millions based on his ownership position.
His latest transition—to OpenAI, which recently submitted confidential IPO documentation—suggests another potentially lucrative opportunity. If his move included fresh equity compensation, he’s positioned for another substantial payday.
Internal Resource Allocation Created Additional Tension
Financial considerations aren’t the only factor. In Shazeer’s situation, internal organizational decisions at Google seemingly contributed to his departure.
Just prior to announcing his OpenAI transition, computational resources allocated to one of Shazeer’s initiatives were redirected to a London-based Google DeepMind division. Company representatives characterized this reallocation as an efficiency measure designed to enhance collaboration and optimize pre-training operations—the foundational stage where AI models process massive datasets.
However, for a researcher whose work depends heavily on computational access, such resource constraints carry significant implications. This context suggests that financial incentives represent only part of the departure equation.
Google has been working to regain ground throughout much of the current AI competitive cycle before building momentum in late 2025 with improved models and proprietary chip technology. The consecutive exits of Jumper, Shazeer, Adler, and Pritzel now cast that advancement in a more uncertain light.
Adler, Pritzel, Jumper, and Shazeer have not responded to inquiries seeking comment.
