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*   [](/v0.2/)
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*   [Chat models](/v0.2/docs/integrations/chat/)
*   Cloudflare Workers AI

On this page

ChatCloudflareWorkersAI
=======================

Workers AI allows you to run machine learning models, on the Cloudflare network, from your own code.

Usage[​](#usage "Direct link to Usage")
---------------------------------------

You'll first need to install the LangChain Cloudflare integration package:

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/cloudflare

    yarn add @langchain/cloudflare

    pnpm add @langchain/cloudflare

tip

We're unifying model params across all packages. We now suggest using `model` instead of `modelName`, and `apiKey` for API keys.

    import { ChatCloudflareWorkersAI } from "@langchain/cloudflare";const model = new ChatCloudflareWorkersAI({  model: "@cf/meta/llama-2-7b-chat-int8", // Default value  cloudflareAccountId: process.env.CLOUDFLARE_ACCOUNT_ID,  cloudflareApiToken: process.env.CLOUDFLARE_API_TOKEN,  // Pass a custom base URL to use Cloudflare AI Gateway  // baseUrl: `https://gateway.ai.cloudflare.com/v1/{YOUR_ACCOUNT_ID}/{GATEWAY_NAME}/workers-ai/`,});const response = await model.invoke([  ["system", "You are a helpful assistant that translates English to German."],  ["human", `Translate "I love programming".`],]);console.log(response);/*AIMessage {  content: `Sure! Here's the translation of "I love programming" into German:\n` +    '\n' +    '"Ich liebe Programmieren."\n' +    '\n' +    'In this sentence, "Ich" means "I," "liebe" means "love," and "Programmieren" means "programming."',  additional_kwargs: {}}*/const stream = await model.stream([  ["system", "You are a helpful assistant that translates English to German."],  ["human", `Translate "I love programming".`],]);for await (const chunk of stream) {  console.log(chunk);}/*  AIMessageChunk {    content: 'S',    additional_kwargs: {}  }  AIMessageChunk {    content: 'ure',    additional_kwargs: {}  }  AIMessageChunk {    content: '!',    additional_kwargs: {}  }  AIMessageChunk {    content: ' Here',    additional_kwargs: {}  }  ...*/

#### API Reference:

*   [ChatCloudflareWorkersAI](https://v02.api.js.langchain.com/classes/langchain_cloudflare.ChatCloudflareWorkersAI.html) from `@langchain/cloudflare`

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