Using o4-mini on OpenRouter

Implementation guide · o3 · OpenAI

Serverless

OpenRouter exposes o4-mini through model ID openai/o4-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/o4-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

VisionMultimodalReasoningJSON / Tool useStructured OutputsCode Execution

About o4-mini

Fast and cost-efficient reasoning model with vision support for math, coding, and visual understanding. Retired from ChatGPT February 13, 2026 but still available via API. Released April 16, 2025.

Full model details →

Model Specs

Released2025-04-16
Context200k
ArchitectureDecoder Only
Knowledge cutoff2025-08

More Models on OpenRouter

o3-proo3o3 Mini
All models on OpenRouter →

Also available on(3)

Replicate API$1.00/1MOpenAI API$1.10/1MVercel AI Gateway$1.10/1M
Compare all providers →

Provider

OpenRouter

OpenRouter, Inc.

New York, NY, USA