Gemini 3.5 Pro Targets July 17 Launch After Full Architecture Rebuild
Summary: Gemini 3.5 Pro, scrapped and rebuilt from scratch after enterprise testers flagged quality regressions in June, is now targeting July 17 for GA — with what would be the largest context window of any production frontier model.
Key Points
- July 17 GA target confirmed by multiple independent outlets; no official Google blog post yet
- 2 million token context window — double the 1M cap on Gemini 2.5 Pro, largest of any frontier model at launch
- Deep Think multi-step reasoning gated to the $250/month Ultra tier only
- Estimated pricing ~$1.25 input / $10 output per million tokens (unconfirmed)
- The rebuild followed enterprise beta feedback flagging coding and reasoning regressions vs. Gemini 2.5 Pro — Google scrapped the existing architecture entirely
Why It Matters
Google enters the post-June frontier race behind GPT-5.6 and Grok 4.5, after a talent exodus that wiped $225B off Alphabet's market cap. Gemini 3.5 Pro's independent benchmark results at launch will be the most concrete test yet of whether DeepMind can compete at the frontier after losing Shazeer, Jumper, and four other senior researchers in a single week.
Read More
- Google Delays Gemini 3.5 Pro Launch to July 17 for Full Architectural Rebuild — BigGo Finance
- Gemini 3.5 Pro Targets July 17 — TechTimes