Using o3 Mini on OpenRouter

Implementation guide · o3 · OpenAI

Serverless

OpenRouter exposes o3 Mini through model ID openai/o3-mini. 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-mini — see the documentation for request format.
  3. 3
    You'll be billed $1.10/1M input, $4.40/1M output tokens. See full pricing.
API PortalDocumentationPricingModel Card

Code Examples

See OpenRouter documentation for integration details.

Pricing on OpenRouter

TypePrice (per 1M)
Input tokens$1.10
Output tokens$4.40

Capabilities

ReasoningJSON / Tool useStructured OutputsCode ExecutionPrompt Caching

About o3 Mini

OpenAI o3-mini - cost-optimized reasoning model. Compact variant of reasoning model family.

Full model details →

Model Specs

Released2025-01-31
Context200k
ArchitectureDecoder Only
Knowledge cutoff2025-04

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Also available on(3)

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Provider

OpenRouter

OpenRouter, Inc.

New York, NY, USA