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. It combines advanced contextual understanding with fast, cost-efficient inference, making complex image generation and iterative edits significantly more accessible. Aspect ratios can be controlled with the [image_config API Parameter](https://openrouter.ai/docs/features/multimodal/image-generation#image-aspect-ratio-configuration)
Nano Banana 2 is a specialized model from Gemini : built for a specific domain.
Domain-specific model. Optimized for a particular task such as code generation, image creation, or web search.
| Type | per 1M tokens |
|---|---|
| Input (prompt) | $0.500 |
| Output (completion) | $3.00 |
This model may use your data for training