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    • © 2025 OpenRouter, Inc

    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.

    Recent activity on Codex Mini

    Total usage per day on OpenRouter

    Prompt
    2.86M
    Reasoning
    241K
    Completion
    84K

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