> ## Documentation Index
> Fetch the complete documentation index at: https://langchain-zh.cn/llms.txt
> Use this file to discover all available pages before exploring further.

# ChatXAI 集成

> 使用 LangChain JavaScript 集成 ChatXAI 聊天模型。

[xAI](https://x.ai/) 是一家开发大型语言模型（LLM）的人工智能公司。其旗舰模型 Grok 基于实时 X（原 Twitter）数据进行训练，旨在提供机智且富有个性的回答，同时在技术任务上保持高能力。

本指南将帮助您开始使用 `ChatXAI` [聊天模型](/oss/javascript/langchain/models)。有关 `ChatXAI` 所有功能和配置的详细文档，请参阅 [API 参考](https://reference.langchain.com/javascript/langchain-xai/ChatXAI)。

## 概述

### 集成详情

| 类                                                                             | 包                                                                | 可序列化 | PY 支持 |                                               下载量                                              |                                              版本                                             |
| :---------------------------------------------------------------------------- | :--------------------------------------------------------------- | :--: | :---: | :--------------------------------------------------------------------------------------------: | :-----------------------------------------------------------------------------------------: |
| [`ChatXAI`](https://reference.langchain.com/javascript/langchain-xai/ChatXAI) | [`@langchain/xai`](https://www.npmjs.com/package/@langchain/xai) |   ✅  |   ❌   | ![NPM - Downloads](https://img.shields.io/npm/dm/@langchain/xai?style=flat-square\&label=%20&) | ![NPM - Version](https://img.shields.io/npm/v/@langchain/xai?style=flat-square\&label=%20&) |

### 模型特性

下表标题中的链接提供了如何使用特定功能的指南。

| [工具调用](/oss/javascript/langchain/tools) | [结构化输出](/oss/javascript/langchain/structured-output) | [图像输入](/oss/javascript/langchain/messages#multimodal) | 音频输入 | 视频输入 | [令牌级流式传输](/oss/javascript/langchain/streaming/) | [令牌使用量](/oss/javascript/langchain/models#token-usage) | [对数概率](/oss/javascript/langchain/models#log-probabilities) |
| :-------------------------------------: | :--------------------------------------------------: | :---------------------------------------------------: | :--: | :--: | :---------------------------------------------: | :---------------------------------------------------: | :--------------------------------------------------------: |
|                    ✅                    |                           ✅                          |                           ❌                           |   ❌  |   ❌  |                        ✅                        |                           ✅                           |                              ✅                             |

## 设置

要访问 `ChatXAI` 模型，您需要创建一个 xAI 账户，[获取 API 密钥](https://console.x.ai/)，并安装 `@langchain/xai` 集成包。

### 凭证

前往 [xAI 网站](https://x.ai/) 注册 xAI 并生成 API 密钥。完成后，设置 `XAI_API_KEY` 环境变量：

```bash theme={"theme":{"light":"catppuccin-latte","dark":"catppuccin-mocha"}}
export XAI_API_KEY="your-api-key"
```

如果您希望自动追踪模型调用，还可以设置 [LangSmith](/langsmith/home) API 密钥，取消以下注释即可：

```bash theme={"theme":{"light":"catppuccin-latte","dark":"catppuccin-mocha"}}
# export LANGSMITH_TRACING="true"
# export LANGSMITH_API_KEY="your-api-key"
```

### 安装

LangChain `ChatXAI` 集成位于 `@langchain/xai` 包中：

<CodeGroup>
  ```bash npm theme={"theme":{"light":"catppuccin-latte","dark":"catppuccin-mocha"}}
  npm install @langchain/xai @langchain/core
  ```

  ```bash yarn theme={"theme":{"light":"catppuccin-latte","dark":"catppuccin-mocha"}}
  yarn add @langchain/xai @langchain/core
  ```

  ```bash pnpm theme={"theme":{"light":"catppuccin-latte","dark":"catppuccin-mocha"}}
  pnpm add @langchain/xai @langchain/core
  ```
</CodeGroup>

## 实例化

现在我们可以实例化模型对象并生成聊天补全：

```typescript theme={"theme":{"light":"catppuccin-latte","dark":"catppuccin-mocha"}}
import { ChatXAI } from "@langchain/xai"

const llm = new ChatXAI({
    model: "grok-beta", // 默认值
    temperature: 0,
    maxTokens: undefined,
    maxRetries: 2,
    // 其他参数...
})
```

## 调用

```typescript theme={"theme":{"light":"catppuccin-latte","dark":"catppuccin-mocha"}}
const aiMsg = await llm.invoke([
    [
      "system",
      "你是一个将英语翻译成法语的助手。请翻译用户的句子。",
    ],
    ["human", "I love programming."],
])
console.log(aiMsg)
```

```text theme={"theme":{"light":"catppuccin-latte","dark":"catppuccin-mocha"}}
AIMessage {
  "id": "71d7e3d8-30dd-472c-8038-b6b283dcee63",
  "content": "J'adore programmer.",
  "additional_kwargs": {},
  "response_metadata": {
    "tokenUsage": {
      "promptTokens": 30,
      "completionTokens": 6,
      "totalTokens": 36
    },
    "finish_reason": "stop",
    "usage": {
      "prompt_tokens": 30,
      "completion_tokens": 6,
      "total_tokens": 36
    },
    "system_fingerprint": "fp_3e3898d4ce"
  },
  "tool_calls": [],
  "invalid_tool_calls": [],
  "usage_metadata": {
    "output_tokens": 6,
    "input_tokens": 30,
    "total_tokens": 36,
    "input_token_details": {},
    "output_token_details": {}
  }
}
```

```typescript theme={"theme":{"light":"catppuccin-latte","dark":"catppuccin-mocha"}}
console.log(aiMsg.content)
```

```text theme={"theme":{"light":"catppuccin-latte","dark":"catppuccin-mocha"}}
J'adore programmer.
```

***

## API 参考

有关 `ChatXAI` 所有功能和配置的详细文档，请参阅 [API 参考](https://reference.langchain.com/javascript/langchain-xai/ChatXAI)。

***

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