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 $120.00/1M output tokens. Access Nano Banana Pro via the Google API with up to 33K output tokens.
Capabilities
Input Modalities
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Output Modalities
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Reasoning
Yes
Structured Output
No
Tool Use
No
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
$120.00
Frequently Asked Questions
Nano Banana Pro by Google costs $2.00 per 1M input tokens and $120.00 per 1M output tokens.
Model Details
ID
gemini-3-pro-image-preview
Provider
GoogleFamily
gemini-pro
Release Date
Nov 20, 2025
Knowledge Cutoff
Jan 1, 2025
API Integration
NPM Package
@ai-sdk/google
Environment Variables
GOOGLE_API_KEY
GOOGLE_GENERATIVE_AI_API_KEY
GEMINI_API_KEY