Nano Banana 2 (Gemini 3.1 Flash Image Preview)
Gemini 3.1 Flash Image Preview, 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.
The figures
- Made by
- Model ID
- google/gemini-3.1-flash-image-preview
- Input
- $0.5 per million tokens
- Output
- $3 per million tokens
- Context window
- 66K tokens
- Longest answer
- 59K tokens
- Takes in
- image, text
- Gives back
- image, text
- Reasoning
- Yes
- Tool calling
- No
- Reads images
- Yes
- Open weights
- No
- Released
- 26 Feb 2026
Read on 3 Oct 2026.