Nano Banana Pro API
About
Build advanced reasoning agents with Nano Banana Pro, a specialized AI model optimized for complex logic and chain-of-thought tasks. This model delivers cost-effective pricing at $2.00/1M input and $12.00/1M output tokens, native tool calling support. Access Nano Banana Pro via the OpenRouter API with up to 33K output tokens.
Capabilities
Input Modalities
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Output Modalities
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Reasoning
Yes
Structured Output
Yes
Tool Use
Yes
WeightsClosed
Temperature
Adjustable
Attachment
Supported
Limits
Context Window
131K
Tokens
Input Limit
131K
Tokens
Max Output
33K
Tokens
Pricing
Standard (per 1M tokens)
Input
$2.00
Output
$12.00
Reasoning (per 1M tokens)
Output
$12.00
Caching (per 1M tokens)
Read
$0.20
Write
$0.38
Frequently Asked Questions
Nano Banana Pro by OpenRouter costs $2.00 per 1M input tokens and $12.00 per 1M output tokens. Cached reads cost $0.20 per 1M tokens. Cache writes cost $0.38 per 1M tokens.
Model Details
ID
google/gemini-3-pro-image
Provider
OpenRouterFamily
gemini-pro
Release Date
May 28, 2026
Knowledge Cutoff
Jan 1, 2025
API Integration
NPM Package
@openrouter/ai-sdk-provider
Environment Variables
OPENROUTER_API_KEY
API Base URL
https://openrouter.ai/api/v1