Google: Nano Banana (Gemini 2.5 Flash Image)

GoogleID: google/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)

Pricing per 1M Tokens

Input (Prompt)$0.30
Output (Completion)$2.50
Cache Read$0.03
Cache Write$0.08
Image$0.30

Specifications

Context Length33K
Max Output Tokens33K
Input ModalitiesImage + Text
Output ModalitiesImage + Text
TokenizerGemini
Instruct TypeN/A
Top Provider Context33K
Top Provider Max Output33K
ModeratedNo

Compare this model

See how Google: Nano Banana (Gemini 2.5 Flash Image) stacks up against other models.

vs Google: Gemini 3.1 Flash Lite Previewvs Google: Nano Banana 2 (Gemini 3.1 Flash Image Preview)vs Google: Gemini 3.1 Pro Preview Custom Toolsvs Google: Gemini 3.1 Pro Previewvs Google: Gemini 3 Flash Preview

More from Google

Google: Gemini 3.1 Flash Lite Preview
Input$0.25
Context1.0M
Google: Nano Banana 2 (Gemini 3.1 Flash Image Preview)
Input$0.50
Context66K
Google: Gemini 3.1 Pro Preview Custom Tools
Input$2.00
Context1.0M
Google: Gemini 3.1 Pro Preview
Input$2.00
Context1.0M
Google: Gemini 3 Flash Preview
Input$0.50
Context1.0M

Last updated: March 23, 2026

First tracked: March 23, 2026