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    OpenAI: GPT-5 Chat

    openai/gpt-5-chat

    Created Aug 7, 2025128,000 context
    $1.25/M input tokens$10/M output tokens$10/K web search

    GPT-5 Chat is designed for advanced, natural, multimodal, and context-aware conversations for enterprise applications.

    Sample code and API for GPT-5 Chat

    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.