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LangChain.js supports Cohere LLMs. Here's an example:

You'll first need to install the @langchain/cohere package.

npm install @langchain/cohere
import { Cohere } from "@langchain/cohere";

const model = new Cohere({
maxTokens: 20,
apiKey: "YOUR-API-KEY", // In Node.js defaults to process.env.COHERE_API_KEY
const res = await model.invoke(
"What would be a good company name a company that makes colorful socks?"
console.log({ res });

API Reference:

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