Google Gemini 3.5 Pro
Announced by Sundar Pichai at Google I/O with a promised June general availability, reported to be a ground-up architectural rebuild abandoning the 2.5 Pro lineage, with a rumored but unconfirmed 2M-token context window. Google has confirmed no specs or pricing.
Nothing has shipped. It missed the June window, then a leaked July 17 target, and mid-July reporting describes a third delay over hallucination and reliability gaps, with Google considering a stopgap release.
Reality review pending — we publish the executive verdict after the launch has had time to meet the real world.
Google's flagship is the conspicuous absence in the frontier race — publicly promised by the CEO and repeatedly missed, which is unusual for Google and matters to any enterprise standardizing on Vertex AI. Treat Gemini roadmap dates as soft until Google confirms specs and pricing in writing.