AI model · Google
Nano Banana 2 (Gemini 3.1 Flash Image)
Model ID: google/gemini-3.1-flash-image
- Input
- $0.50 per 1M tokens
- Output
- $3 per 1M tokens
- Context
- 131K tokens at once
- Max output
- 33K tokens per reply
- Released
- 18 Jun 2026 Google
What it can do
- YesReasoning
- NoTool calling
- YesImage input
- NoOpen weights
- NoFree to use
Takes image, text; gives image, text.
How its listing describes it
Gemini 3.1 Flash Image, a.k.a. "Nano Banana 2," is Google’s latest state of the art image generation and editing model, delivering Pro-level visual quality at Flash speed.
Sources
- Google: Nano Banana 2 (Gemini 3.1 Flash Image) on OpenRouter — read 2 Oct 2026