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    • © 2025 OpenRouter, Inc

    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

    Recent activity on GPT-5.1-Codex-Mini

    Total usage per day on OpenRouter

    Prompt
    635M
    Reasoning
    17.3M
    Completion
    5.61M

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