Using o3-pro on OpenRouter

Implementation guide · o3 · OpenAI

Serverless

OpenRouter exposes o3-pro through model ID openai/o3-pro. Use the setup steps, sourced pricing, capabilities, and official provider links below to validate this route before deployment.

Last refreshed 2026-06-15. Next refresh: weekly.

Quick Start

  1. 1
    Create an account at OpenRouter and generate an API key.
  2. 2
    Use the OpenRouter SDK or REST API to call openai/o3-pro — see the documentation for request format.
  3. 3
    You'll be billed $20.00/1M input, $80.00/1M output tokens. See full pricing.
API PortalDocumentationPricingModel Card

Code Examples

See OpenRouter documentation for integration details.

Pricing on OpenRouter

TypePrice (per 1M)
Input tokens$20.00
Output tokens$80.00

Capabilities

VisionMultimodalReasoningJSON / Tool useStructured OutputsCode Execution

About o3-pro

Advanced o3 reasoning model for complex math, science, and coding problems. Supports tools, vision, and extended thinking. Available to Pro users. Released June 10, 2025.

Full model details →

Model Specs

Released2025-06-10
Context200k
ArchitectureDecoder Only
Knowledge cutoff2025-08

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Also available on(2)

OpenAI API$20.00/1MVercel AI Gateway$20.00/1M
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Provider

OpenRouter

OpenRouter, Inc.

New York, NY, USA