Google ships Gemini models to the app on a fast cadence. This page lists each Gemini 3 family release by the day it reached users, and which plans got it.
Gemini 3 Pro arrived app-wide on 18th Nov 2025 alongside Gemini Agent, the app's first agentic feature. Gemini 3 Flash replaced 2.5 Flash as the default on 17th Dec 2025.
Since then the Flash line has moved quickly. Gemini 3.5 Flash came at I/O 2026 and 3.7 Flash began powering Spark on 13th Aug.
Gemini 3.8 Flash reached Pro and Ultra subscribers on 2nd Sep.
Each release below links to its entry and primary source on our Gemini tracker. The same models reach AI Mode on their own dates, tracked on the AI Mode tracker.