Key Takeaways
- Jonas Adler and Alexander Pritzel, crucial members of Google’s Gemini development team, are departing to join Anthropic
- This follows recent high-profile exits including Nobel Prize winner John Jumper (to Anthropic) and renowned researcher Noam Shazeer (to OpenAI)
- Pre-IPO stock options at competing AI startups are believed to be the main financial incentive attracting talent away from Google
- Internal resource reallocation at Google, including computing power shifts, may have contributed to researcher dissatisfaction
- Shazeer previously earned hundreds of millions when Google acquired Character.AI technology for $2.7 billion
Alphabet is experiencing a significant drain of artificial intelligence expertise. Reports emerged Wednesday from Bloomberg indicating that Jonas Adler and Alexander Pritzel, two essential figures behind Google’s Gemini AI platform, are set to depart for rival Anthropic.
Shares of Alphabet (GOOGL) declined 0.30% following the announcement. These latest departures arrive mere days after Nobel Prize winner John Jumper also made the leap to Anthropic, while prominent researcher Noam Shazeer revealed his transition to OpenAI.
Adler specialized in Google’s artificial intelligence coding initiatives. Pritzel concentrated on training methodologies for AI systems. Both researchers were regarded as invaluable internal assets working on the Gemini project.
This wave of departures has concerned shareholders and sparked renewed debate about Google’s capacity to retain the specialized talent necessary for maintaining its competitive edge in AI development.
A Google representative referenced statements from Google DeepMind CEO Demis Hassabis, emphasizing the company’s continued confidence in its AI workforce strength. Anthropic has not issued a response to media inquiries.
The Allure of Pre-IPO Compensation
The financial incentives driving these moves are substantial. Both Anthropic and OpenAI are widely viewed as prime IPO candidates, with potential public offerings anticipated sometime between late 2026 and 2027.
For top-tier AI researchers, transitioning from a $4 trillion publicly-traded corporation to a pre-IPO startup represents one of the most lucrative opportunities available. While Google’s restricted stock units provide attractive compensation, the returns are relatively stable. Conversely, pre-IPO equity at a rapidly expanding artificial intelligence venture offers dramatically different upside potential.
Shazeer’s professional trajectory exemplifies this dynamic. After departing Google in 2021 to establish Character.AI, he eventually returned when Google structured a licensing agreement valued at approximately $2.7 billion. According to Wall Street Journal reporting, this transaction netted him hundreds of millions from his ownership position.
His most recent move takes him to OpenAI, which has privately submitted IPO documentation. Should he have secured additional equity as part of this transition, he’s positioned for another substantial payday.
Internal Resource Allocation Created Additional Tension
Financial considerations aren’t the complete picture. In specific instances, strategic decisions within Google seemingly amplified existing frustrations.
Just before Shazeer publicly announced his OpenAI transition, computational resources allocated to one of his initiatives were redirected to a London-based division within Google DeepMind. Management characterized this reallocation as necessary for enhanced collaboration and more efficient pre-training operations — the foundational stage of AI development where models process massive datasets.
However, for a researcher whose work fundamentally depends on computational access, such resource reductions carry significant implications. This context illuminates why monetary incentives alone don’t fully explain the exodus.
Google spent much of the recent AI advancement cycle struggling to keep pace before building momentum throughout late 2025 with improved models and proprietary chip technology. The consecutive exits of Jumper, Shazeer, Adler, and Pritzel now cast doubt on whether that momentum can be sustained.
Adler, Pritzel, Jumper, and Shazeer have not provided responses to media inquiries.
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