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Google

Gemini 3 Pro Preview API

Google
About

Build advanced reasoning agents with Gemini 3 Pro 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, native tool calling support. Access Gemini 3 Pro Preview via the Google API with up to 64K output tokens.

Capabilities

Input Modalities

textimagevideoaudiopdf

Output Modalities

text
Reasoning
Yes
Structured Output
Yes
Tool Use
Yes
WeightsClosed
Temperature
Adjustable
Attachment
Supported
Limits
Context Window
1.0M

Tokens

Input Limit
1.0M

Tokens

Max Output
64K

Tokens

Pricing

Standard (per 1M tokens)

Input
$2.00
Output
$12.00

Caching (per 1M tokens)

Read
$0.20
Frequently Asked Questions

Gemini 3 Pro Preview by Google costs $2.00 per 1M input tokens and $12.00 per 1M output tokens. Cached reads cost $0.20 per 1M tokens.

Model Details
ID
gemini-3-pro-preview
Provider
Google
Family
gemini-pro
Release Date
Nov 18, 2025
Knowledge Cutoff
Jan 1, 2025
API Integration
NPM Package
@ai-sdk/google
Environment Variables
GOOGLE_GENERATIVE_AI_API_KEY
GEMINI_API_KEY
Documentation