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    OpenAI: o4 Mini Deep Research

    openai/o4-mini-deep-research

    Created Oct 10, 2025200,000 context
    $2/M input tokens$8/M output tokens$1.53/K input imgs$10/K web search

    o4-mini-deep-research is OpenAI's faster, more affordable deep research model—ideal for tackling complex, multi-step research tasks.

    Note: This model always uses the 'web_search' tool which adds additional cost.

    Sample code and API for o4 Mini Deep Research

    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.