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OpenRouter

Using o3 Mini on OpenRouter

Implementation guide · o3 · OpenAI

Serverless

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.

Code Examples

See OpenRouter documentation for integration details.

About OpenRouter

OpenRouter provides a unified interface for Large Language Models with better pricing, improved uptime, and no subscription requirements. Route across providers for cost optimization and reliability.

OpenRouter is a multi-provider LLM aggregator offering unified API access to 300+ models from all major labs and emerging providers, with automatic failover for reliability.

Pricing on OpenRouter

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

Capabilities

ReasoningFunction CallingTool UseStructured OutputsCode ExecutionPrompt Caching

About o3 Mini

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

Model Specs

Released2025-03-31
Context200K
ArchitectureDecoder Only
Knowledge cutoff2025-04

Provider

OpenRouter
OpenRouter

OpenRouter, Inc.

New York, NY, USA