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GitHub Copilot

Gemini 3 Pro Preview API

GitHub Copilot
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 available completely free of charge, native tool calling support. Access Gemini 3 Pro Preview via the GitHub Copilot API with up to 64K 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
128K

Tokens

Input Limit
128K

Tokens

Max Output
64K

Tokens

Pricing

Standard (per 1M tokens)

Input
Free
Output
Free
Frequently Asked Questions

Gemini 3 Pro Preview by GitHub Copilot costs Free per 1M input tokens and Free per 1M output tokens.

Model Details
ID
gemini-3-pro-preview
Provider
GitHub Copilot
Family
gemini-pro
Release Date
Nov 18, 2025
Knowledge Cutoff
Jan 1, 2025
API Integration
NPM Package
@ai-sdk/openai-compatible
Environment Variables
GITHUB_TOKEN
API Base URL
https://api.githubcopilot.com
Documentation