LLM Reference
OpenRouter

Using Nano Banana Pro (Gemini 3 Pro Image Preview) on OpenRouter

Implementation guide · Gemini 3 · Google DeepMind

Serverless

OpenRouter exposes Nano Banana Pro (Gemini 3 Pro Image Preview) through model ID google/gemini-3-pro-image-preview. Use the setup steps, sourced pricing, capabilities, and official provider links below to validate this route before deployment.

Last refreshed 2026-06-15. Next refresh: weekly.

Quick Start

  1. 1
    Create an account at OpenRouter and generate an API key.
  2. 2
    Use the OpenRouter SDK or REST API to call google/gemini-3-pro-image-preview — see the documentation for request format.
  3. 3
    You'll be billed $2.00/1M input, $12.00/1M output tokens. See full pricing.
API PortalDocumentationPricingModel Card

Code Examples

See OpenRouter documentation for integration details.

Pricing on OpenRouter

TypePrice (per 1M)
Input tokens$2.00
Output tokens$12.00

Capabilities

No model capability flags are currently sourced.

About Nano Banana Pro (Gemini 3 Pro Image Preview)

Preview release of Nano Banana Pro for Gemini 3 Pro Image. Google released the GA gemini-3-pro-image model on 2026-05-28 and will retire this preview API ID on 2026-06-25.

Full model details →

Model Specs

Released2025-09-01
Context66k
ArchitectureDecoder Only

More Models on OpenRouter

Gemini 3 Flash Preview
All models on OpenRouter →

Also available on(2)

Google AI Studio$2.00/1MGCP Vertex AI$3.00/1M
Compare all providers →

Provider

OpenRouter
OpenRouter

OpenRouter, Inc.

New York, NY, USA