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Integrations: Chat Models

LangChain offers a number of Chat Models implementations that integrate with various model providers. These are:

OpenAI​

import { ChatOpenAI } from "langchain/chat_models/openai";

const model = new ChatOpenAI({
  temperature: 0.9,
  openAIApiKey: "YOUR-API-KEY", // In Node.js defaults to process.env.OPENAI_API_KEY
});

Anthropic​

import { ChatAnthropic } from "langchain/chat_models/anthropic";

const model = new ChatAnthropic({
  temperature: 0.9,
  apiKey: "YOUR-API-KEY", // In Node.js defaults to process.env.ANTHROPIC_API_KEY
});