OpenAI: Codex Mini

openai/codex-mini

Created May 16, 2025200,000 context

$1.50/M input tokens$6/M output tokens

codex-mini-latest is a fine-tuned version of o4-mini specifically for use in Codex CLI. For direct use in the API, we recommend starting with gpt-4.1.

Providers for Codex Mini

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

Apps using Codex Mini

Top public apps this week using this model

Recent activity on Codex Mini

Tokens processed per day

Uptime stats for Codex Mini

Uptime stats for Codex Mini across all providers

Sample code and API for 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.