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GitHub Models

OpenAI o3 API

GitHub Models
About

Build advanced reasoning agents with OpenAI o3, a specialized AI model optimized for complex logic and chain-of-thought tasks. This model delivers available completely free of charge. Access OpenAI o3 via the GitHub Models API with up to 100K 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
Fixed
Attachment
Not Supported
Limits
Context Window
200K

Tokens

Input Limit
200K

Tokens

Max Output
100K

Tokens

Pricing

Standard (per 1M tokens)

Input
Free
Output
Free
Frequently Asked Questions

OpenAI o3 by GitHub Models costs Free per 1M input tokens and Free per 1M output tokens.

Model Details
ID
openai/o3
Provider
GitHub Models
Family
o
Release Date
Jan 31, 2025
Knowledge Cutoff
Apr 1, 2024
API Integration
NPM Package
@ai-sdk/openai-compatible
Environment Variables
GITHUB_TOKEN
API Base URL
https://models.github.ai/inference
Documentation