FeatureGoogleVerified
Gemini 3 Flash becomes the default model in the Gemini app
Listen Gemini 3 Flash
On December 17, 2025, Google launched Gemini 3 Flash and made it the default model in the Gemini app and AI Mode in Search globally, replacing Gemini 2.5 Flash. Google positions it as Pro-grade reasoning at Flash speed, citing 33.7% on Humanity's Last Exam without tools and 81.2% on MMMU-Pro, at $0.50 / $3 per million tokens.
Corroborating sources
- TechCrunch — Gemini 3 Flash default
https://techcrunch.com/2025/12/17/google-launches-gemini-3-flash-makes-it-the-default-model-in-the-gemini-app/
“Flash is just a much cheaper offering from an input and output price perspective.”
- Announcement / blog
https://blog.google/products/gemini/gemini-3-flash/