Friday Jul 3
STRATEGYGoogle

Gemini 3.5 Pro Ships Without Its Builders

3JUL
2 GONEGOOGLERIVALS

Google's next big model finally has a ship date. Noam Shazeer, Gemini's co-lead, and AlphaFold's John Jumper left for OpenAI and Anthropic. Alphabet lost 5% in market value that week.

Third and fourth senior Google AI researcher to leave in months. One helped invent the Transformer architecture behind every large model today.

The other won a Nobel Prize for protein-folding work before switching labs. Google set a July launch date for its flagship model, a month late. The slip came from coding and long-task performance issues, not the exits directly.

Every senior departure raises the same question about Google's research edge. More counter-offers and faster releases could follow as labs compete for talent.

full brief & sources

⚡ Why this matters

  • Talent flight from a frontier lab is a leading indicator, not a lagging one.
  • Gemini's launch slip shows Google can't out-execute OpenAI and Anthropic on schedule alone.
  • Anthropic keeps landing marquee scientific talent, not just engineers.

🔍 What happened

  • Noam Shazeer, Gemini co-lead and Transformer co-author, announced his move to OpenAI on June 18.
  • John Jumper, the AlphaFold lead and 2024 Nobel laureate, joined Anthropic's science team days later.
  • Alphabet shares fell 5-6% on June 22 as the departures became public.
  • Google confirmed Gemini 3.5 Pro ships in July, a month after its original June target.
  • Gemini 3.5 Flash already shipped in May; only the flagship Pro model was delayed.

💬 Smart takes

  • Fortune: the departures raise doubts about whether DeepMind can stay at the AI frontier.
  • Axios: Google DeepMind is losing 'star power' just as the race tightens.
  • Skeptic: Google still ships Gemini 3.5 Flash, a genuinely fast, cheap frontier model, so one bad week doesn't erase that lead.

🧭 Where this goes

  1. LikelyGoogle announces retention packages or reorganizes DeepMind leadership within the quarter.
  2. LikelyGemini 3.5 Pro ships in July close to its new target date.
  3. Possibleone or two more senior researchers leave Google before the end of the year.
  4. Wild CardGoogle pauses its largest frontier model training run to regroup.

🥄 The Spoon Take

Model races get the headlines, but talent races decide who wins them. Two of Google's most decorated researchers just voted with their feet, for OpenAI and Anthropic. A launch delay is a schedule problem. Losing the people who set the schedule is a different kind of problem.

🤔 Pushback

Google still shipped Gemini 3.5 Flash on time and it's genuinely fast. Two departures don't prove the lab has lost its edge.

·Fortune - DeepMind departures doubt·Axios - DeepMind loses star power·Tech Times - Gemini 3.5 Pro cleared