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*   [Components](/v0.2/docs/integrations/components)
*   [Chat models](/v0.2/docs/integrations/chat/)
*   Baidu Wenxin

ChatBaiduWenxin
===============

LangChain.js supports Baidu's ERNIE-bot family of models. Here's an example:

tip

See [this section for general instructions on installing integration packages](/v0.2/docs/how_to/installation#installing-integration-packages).

*   npm
*   Yarn
*   pnpm

    npm install @langchain/community

    yarn add @langchain/community

    pnpm add @langchain/community

Available models: `ERNIE-Bot`,`ERNIE-Bot-turbo`,`ERNIE-Bot-4`,`ERNIE-Speed-8K`,`ERNIE-Speed-128K`,`ERNIE-4.0-8K`, `ERNIE-4.0-8K-Preview`,`ERNIE-3.5-8K`,`ERNIE-3.5-8K-Preview`,`ERNIE-Lite-8K`,`ERNIE-Tiny-8K`,`ERNIE-Character-8K`, `ERNIE Speed-AppBuilder`

    import { ChatBaiduWenxin } from "@langchain/community/chat_models/baiduwenxin";import { HumanMessage } from "@langchain/core/messages";// Default model is ERNIE-Bot-turboconst ernieTurbo = new ChatBaiduWenxin({  baiduApiKey: "YOUR-API-KEY", // In Node.js defaults to process.env.BAIDU_API_KEY  baiduSecretKey: "YOUR-SECRET-KEY", // In Node.js defaults to process.env.BAIDU_SECRET_KEY});// Use ERNIE-Botconst ernie = new ChatBaiduWenxin({  model: "ERNIE-Bot", // Available models are shown above  temperature: 1,  baiduApiKey: "YOUR-API-KEY", // In Node.js defaults to process.env.BAIDU_API_KEY  baiduSecretKey: "YOUR-SECRET-KEY", // In Node.js defaults to process.env.BAIDU_SECRET_KEY});const messages = [new HumanMessage("Hello")];let res = await ernieTurbo.invoke(messages);/*AIChatMessage {  text: 'Hello! How may I assist you today?',  name: undefined,  additional_kwargs: {}  }}*/res = await ernie.invoke(messages);/*AIChatMessage {  text: 'Hello! How may I assist you today?',  name: undefined,  additional_kwargs: {}  }}*/

#### API Reference:

*   [ChatBaiduWenxin](https://v02.api.js.langchain.com/classes/langchain_community_chat_models_baiduwenxin.ChatBaiduWenxin.html) from `@langchain/community/chat_models/baiduwenxin`
*   [HumanMessage](https://v02.api.js.langchain.com/classes/langchain_core_messages.HumanMessage.html) from `@langchain/core/messages`

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