About Nano Banana (Gemini 2.5 Flash Image)
Gemini 2.5 Flash Image, a.k.a. "Nano Banana," is now generally available. It is a state of the art image generation model with contextual understanding. It is capable of image generation, edits, and multi-turn conversations. Aspect ratios can be controlled with the [image_config API Parameter](https://openrouter.ai/docs/features/multimodal/image-generation#image-aspect-ratio-configuration)
Specifications
- Provider
- Context Length
- 32,768 tokens
- Input Types
- image, text
- Output Types
- image, text
- Category
- Gemini
- Added
- 10/7/2025
Benchmark Performance
How Nano Banana (Gemini 2.5 Flash Image) compares to its closest rivals across industry benchmarks
Human preference rankings for image generation models based on blind comparisons
Metric: Elo Score
#8
hunyuan-image-3.0
1,152
#9
flux-2-dev
1,149
Frequently Asked Questions
Common questions about Nano Banana (Gemini 2.5 Flash Image)