Cohere

Cohere provides the Command family of models, used in LibreChat as a custom endpoint. Its API does not follow the OpenAI spec, so it relies on a compatibility layer that maps a subset of parameters.

Get an API key

Create a key from the Cohere dashboard. Add it to your .env file:

COHERE_API_KEY=your-api-key

Configuration

Add the endpoint under endpoints.custom in your librechat.yaml:

    - name: "cohere"
      apiKey: "${COHERE_API_KEY}"
      baseURL: "https://api.cohere.ai/v1"
      models:
        default: ["command-r","command-r-plus","command-light","command-light-nightly","command","command-nightly"]
        fetch: false
      modelDisplayLabel: "cohere"
      titleModel: "command"
      dropParams: ["stop", "user", "frequency_penalty", "presence_penalty", "temperature", "top_p"]

Notes

• Cohere does not follow the OpenAI spec. A compatibility layer maps a subset of OpenAI parameters to Cohere's equivalents: stop to stopSequences, top_p to p, frequency_penalty to frequencyPenalty, and presence_penalty to presencePenalty (each with different min/max ranges). model and stream are shared and sent by default; max_tokens maps to maxTokens but is not sent by default. The example above uses dropParams to remove most of these and fall back to Cohere's defaults.
• For the full list of Cohere-specific parameters, see the Cohere API documentation.