o3-pro API
About
Build advanced reasoning agents with o3-pro, a specialized AI model optimized for complex logic and chain-of-thought tasks. This model delivers cost-effective pricing at $20.00/1M input and $80.00/1M output tokens, native tool calling support. Access o3-pro via the OpenRouter API with up to 100K 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
Fixed
Attachment
Supported
Limits
Context Window
200K
Tokens
Input Limit
200K
Tokens
Max Output
100K
Tokens
Pricing
Standard (per 1M tokens)
Input
$20.00
Output
$80.00
Frequently Asked Questions
o3-pro by OpenRouter costs $20.00 per 1M input tokens and $80.00 per 1M output tokens.
Model Details
API Integration
NPM Package
@openrouter/ai-sdk-provider
Environment Variables
OPENROUTER_API_KEY
API Base URL
https://openrouter.ai/api/v1