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    OpenAI: o3 Pro

    openai/o3-pro

    Created Jun 10, 2025200,000 context
    $20/M input tokens$80/M output tokens$15.30/K input imgs$10/K web search

    The o-series of models are trained with reinforcement learning to think before they answer and perform complex reasoning. The o3-pro model uses more compute to think harder and provide consistently better answers.

    Note that BYOK is required for this model. Set up here: https://openrouter.ai/settings/integrations

    Providers for o3 Pro

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

    Performance for o3 Pro

    Compare different providers across OpenRouter

    Apps using o3 Pro

    Top public apps this week using this model

    Recent activity on o3 Pro

    Total usage per day on OpenRouter

    Uptime stats for o3 Pro

    Uptime stats for o3 Pro across all providers

    Sample code and API for o3 Pro

    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.