GoogleNano Banana
Nano Banana 2
Nano Banana 2 is the stable image model exposed as gemini-3.1-flash-image.
What the release provides
It accepts text, image, video and PDF input and can return images with text. The model combines image creation and editing with Flash-oriented speed.Nano Banana 2 official API documentation
How to use it well
Practical guidance. Use it when iteration speed matters to the image workflow. Define the intended image size, content and edit target before generating. Review the final exported pixels, including any text, rather than relying on the conversational description of the image.
Specifications & access
| Detail | Value and conditions |
|---|---|
| Access | API |
| Model identifiers | gemini-3.1-flash-image |
| Context window | 131,072 tokens API input limit; reserve output capacity where the service shares one window. Nano Banana 2 official API documentation |
| Maximum output | 32,768 tokens Published API output limit; request settings can be lower. Nano Banana 2 official API documentation |