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    Meta: Llama 3.1 405B (base)

    meta-llama/llama-3.1-405b

    Created Aug 2, 202432,768 context
    $4/M input tokens$4/M output tokens

    Meta's latest class of model (Llama 3.1) launched with a variety of sizes & flavors. This is the base 405B pre-trained version.

    It has demonstrated strong performance compared to leading closed-source models in human evaluations.

    To read more about the model release, click here. Usage of this model is subject to Meta's Acceptable Use Policy.

    Providers for Llama 3.1 405B (base)

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

    Performance for Llama 3.1 405B (base)

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    Apps using Llama 3.1 405B (base)

    Top public apps this week using this model

    Recent activity on Llama 3.1 405B (base)

    Total usage per day on OpenRouter

    Uptime stats for Llama 3.1 405B (base)

    Uptime stats for Llama 3.1 405B (base) across all providers

    Sample code and API for Llama 3.1 405B (base)

    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.