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  • Supported Models
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  • Integrating LangChain with Cohere Models
Integrations

Cohere and LangChain (Integration Guide)

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Cohere Chat on LangChain (Integration Guide)

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Built with

Cohere has support for LangChain, a framework which enables you to quickly create LLM powered applications. This guide outlines how to use features from supported Cohere models with LangChain.

Supported Models

The LangChain-Cohere integration currently supports:

  • Command (e.g., command-r-08-2024)
  • Embed (e.g., embed-english-v3.0, embed-multilingual-v3.0)
  • Rerank (e.g., rerank-english-v3.0, rerank-multilingual-v3.0)

Not Yet Supported

Newer models like Command A+ (command-a-plus-05-2026), Command A Reasoning (command-a-reasoning-08-2025), and Command A Vision (command-a-vision-07-2025) are not supported in LangChain.

Prerequisite

To use LangChain and Cohere you will need:

  • LangChain package. To install it, run pip install langchain.

  • LangChain Package. To install it, run:

    • pip install langchain
    • pip install langchain-cohere (to use the Cohere integrations in LangChain)
    • Optional: pip install langchain-community (to access third-party integrations such as web search APIs)

  • Cohere’s SDK. To install it, run pip install cohere. If you run into any issues or want more details on Cohere’s SDK, see this wiki.

  • A Cohere API Key. For more details on pricing see this page. When you create an account with Cohere, we automatically create a trial API key for you. This key will be available on the dashboard where you can copy it, and it’s in the dashboard section called “API Keys” as well.

Integrating LangChain with Cohere Models

The following guides contain technical details on the many ways in which Cohere and LangChain can be used in tandem:

  • Chat on LangChain
  • Embed on LangChain
  • Rerank on LangChain
  • Tools on LangChain