Skip to content
  12.  
    13. © 2023 – 2025 OpenRouter, Inc

    NousResearch: Hermes 2 Pro - Llama-3 8B

    nousresearch/hermes-2-pro-llama-3-8b

    Created May 27, 202432,768 context
    $0.025/M input tokens$0.08/M output tokens

    Hermes 2 Pro is an upgraded, retrained version of Nous Hermes 2, consisting of an updated and cleaned version of the OpenHermes 2.5 Dataset, as well as a newly introduced Function Calling and JSON Mode dataset developed in-house.

    Sample code and API for Hermes 2 Pro - Llama-3 8B

    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.