This article first appeared on GuruFocus.

Alphabet (NASDAQ:GOOGL) is facing another test of its ability to retain elite AI talent after former Google chief scientist Jeff Dean reportedly entered talks to raise $1 billion for his new startup, Discovery Loop, at a valuation near $10 billion. The eye-popping figure underscores both Dean’s stature and a broader investor willingness to place enormous bets on proven AI researchers, even before their new companies reach commercial scale.

Dean left Google after 27 years alongside longtime Google engineer Sanjay Ghemawat and prominent AI researchers Quoc Le and Oriol Vinyals. Discovery Loop aims to use AI to automate machine-learning research, science and engineering, including running large numbers of experiments in parallel. Funding terms could still change, according to Business Insider.

The departure matters because the founders helped build technologies spanning Google Search, Ads, Gemini and core computing infrastructure. It also arrives during a broader reshuffling of Google’s AI leadership, with Demis Hassabis moving from day-to-day leadership of Google DeepMind to chairman and Alphabet chief scientist.

There is an important twist for Alphabet investors: Google is not entirely losing exposure to Dean’s next act. Alphabet is a founding investor in Discovery Loop and Google will serve as a cloud partner, giving the company potential financial upside while keeping the startup tied to its computing ecosystem.

Investor Takeaway

The bigger question is whether Dean’s exit becomes an isolated spinout or evidence of a deeper talent-retention problem as AI startups offer researchers enormous capital and autonomy.

Alphabet enters that test from a position of considerable operating strength. Second-quarter revenue rose 24% to $119.8 billion, while Google Cloud revenue surged 82% to $24.8 billion amid strong AI infrastructure demand.

Investors should now watch Gemini model execution, additional senior AI departures and returns on Alphabet’s rapidly expanding infrastructure budget. Alphabet raised its expected 2026 capital spending range to $195 billion to $205 billion after Q2. If Google continues delivering rapid Cloud and Gemini adoption, losing Dean may prove manageable. More high-profile departures or product delays, however, would make the talent issue considerably harder to dismiss.