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

Implementation guide · Gemini 3 · Google DeepMind

Serverless

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.

About OpenRouter

OpenRouter provides a unified interface for Large Language Models with better pricing, improved uptime, and no subscription requirements. Route across providers for cost optimization and reliability.

Multi-provider LLM aggregator offering unified API access to 300+ models from all major labs and emerging providers, with automatic failover for reliability.

Pricing on OpenRouter

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

Capabilities

VisionMultimodalReasoningFunction CallingTool UseStructured OutputsCode Execution

About Nano Banana Pro (Gemini 3 Pro Image Preview)

Google: Nano Banana Pro (Gemini 3 Pro Image Preview) available via OpenRouter. Pricing: $2/1M input, $12/1M output.

Model Specs

Released2025-09-01
Context66K
ArchitectureDecoder Only

Provider

OpenRouter
OpenRouter

OpenRouter, Inc.

New York, NY, USA