Google: Nano Banana Pro (Gemini 3 Pro Image Preview) API
About
Build advanced reasoning agents with Google: Nano Banana Pro (Gemini 3 Pro Image Preview), 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. Access Google: Nano Banana Pro (Gemini 3 Pro Image Preview) via the Kilo Gateway API with up to 33K output tokens.
Capabilities
Input Modalities
imagetext
Output Modalities
imagetext
Reasoning
Yes
Structured Output
No
Tool Use
No
WeightsClosed
Temperature
Adjustable
Attachment
Supported
Limits
Context Window
66K
Tokens
Input Limit
66K
Tokens
Max Output
33K
Tokens
Pricing
Standard (per 1M tokens)
Input
$2.00
Output
$12.00
Reasoning (per 1M tokens)
Output
$12.00
Frequently Asked Questions
Google: Nano Banana Pro (Gemini 3 Pro Image Preview) by Kilo Gateway costs $2.00 per 1M input tokens and $12.00 per 1M output tokens.
Model Details
ID
google/gemini-3-pro-image-preview
Provider
Kilo GatewayFamily
Release Date
Nov 20, 2025
Knowledge Cutoff
N/A
API Integration
NPM Package
@ai-sdk/openai-compatible
Environment Variables
KILO_API_KEY
API Base URL
https://api.kilo.ai/api/gateway