Skip to content
OpenRouterOpenRouter
© 2026 OpenRouter, Inc

Product

  • Chat
  • Rankings
  • Models
  • Providers
  • Pricing
  • Enterprise

Company

  • About
  • Announcements
  • CareersHiring
  • Partners
  • Privacy
  • Terms of Service
  • Support
  • State of AI

Developer

  • Documentation
  • API Reference
  • SDK
  • Status

Connect

  • Discord
  • GitHub
  • LinkedIn
  • X
  • YouTube

OpenAI: GPT-5.1-Codex-Mini

openai/gpt-5.1-codex-mini

Created Nov 13, 2025400,000 context
$0.25/M input tokens$2/M output tokens

GPT-5.1-Codex-Mini is a smaller and faster version of GPT-5.1-Codex

Providers for GPT-5.1-Codex-Mini

OpenRouter routes requests to the best providers that are able to handle your prompt size and parameters, with fallbacks to maximize uptime.

Performance for GPT-5.1-Codex-Mini

Compare different providers across OpenRouter

Apps using GPT-5.1-Codex-Mini

Top public apps this month

Recent activity on GPT-5.1-Codex-Mini

Total usage per day on OpenRouter

Prompt
108M
Reasoning
3.7M
Completion
710K

Prompt tokens measure input size. Reasoning tokens show internal thinking before a response. Completion tokens reflect total output length.

Uptime stats for GPT-5.1-Codex-Mini

Uptime stats for GPT-5.1-Codex-Mini across all providers

Sample code and API for GPT-5.1-Codex-Mini

OpenRouter normalizes requests and responses across providers for you.

OpenRouter provides an OpenAI-compatible completion API to 400+ models & providers that you can call directly, or using the OpenAI SDK. Additionally, some third-party SDKs are available.

In the examples below, the OpenRouter-specific headers are optional. Setting them allows your app to appear on the OpenRouter leaderboards.

Using third-party SDKs

For information about using third-party SDKs and frameworks with OpenRouter, please see our frameworks documentation.

See the Request docs for all possible fields, and Parameters for explanations of specific sampling parameters.