Google: Gemini 2.5 Flash Image (Nano Banana)

Image input Text input Image output Text output
Author's Description

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)

Key Specifications
Context
32K
Released
Oct 07, 2025
Supported Parameters

This model supports the following parameters:

Seed Max Tokens Structured Outputs Response Format Top P Temperature
Features

This model supports the following features:

Response Format Structured Outputs
Model Pricing

Current Pricing

Feature Price (per 1M tokens)
Prompt $0.3
Completion $2.5
Image Generation $1.24 per 1K images

Price History

Available Endpoints
Provider Endpoint Name Context Length Pricing (Input) Pricing (Output)
Google AI Studio
Google AI Studio | google/gemini-2.5-flash-image 32K $0.3 / 1M tokens $2.5 / 1M tokens
Google
Google | google/gemini-2.5-flash-image 32K $0.3 / 1M tokens $2.5 / 1M tokens
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