> ## Documentation Index
> Fetch the complete documentation index at: https://nvd-54.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# ChatTogetherAI 集成

> 使用 LangChain JavaScript 集成 ChatTogetherAI chat model。

[Together AI](https://www.together.ai/) offers an API to query [50+ leading open-source models](https://docs.together.ai/docs/inference-models) in a couple lines of code.

本指南将帮助你开始使用 `ChatTogetherAI` [chat models](/oss/javascript/langchain/models)。有关所有 `ChatTogetherAI` 功能和配置的详细文档，请前往 [API 参考](https://reference.langchain.com/javascript/langchain-community/chat_models/togetherai/ChatTogetherAI)。

## 概述

### 集成详情

| Class                                                                                                                    | Package                                                                      | Serializable | [PY support](https://python.langchain.com/docs/integrations/chat/togetherai) |                                               Downloads                                              |                                              Version                                              |
| :----------------------------------------------------------------------------------------------------------------------- | :--------------------------------------------------------------------------- | :----------: | :--------------------------------------------------------------------------: | :--------------------------------------------------------------------------------------------------: | :-----------------------------------------------------------------------------------------------: |
| [`ChatTogetherAI`](https://reference.langchain.com/javascript/langchain-community/chat_models/togetherai/ChatTogetherAI) | [`@langchain/community`](https://www.npmjs.com/package/@langchain/community) |       ✅      |                                       ✅                                      | ![NPM - Downloads](https://img.shields.io/npm/dm/@langchain/community?style=flat-square\&label=%20&) | ![NPM - Version](https://img.shields.io/npm/v/@langchain/community?style=flat-square\&label=%20&) |

### 模型功能

请参阅下表标题中的链接，了解如何使用特定功能。

| [Tool calling](/oss/javascript/langchain/tools) | [Structured output](/oss/javascript/langchain/structured-output) | [Image input](/oss/javascript/langchain/messages#multimodal) | Audio input | Video input | [Token-level streaming](/oss/javascript/langchain/streaming/) | [Token usage](/oss/javascript/langchain/models#token-usage) | [Logprobs](/oss/javascript/langchain/models#log-probabilities) |
| :---------------------------------------------: | :--------------------------------------------------------------: | :----------------------------------------------------------: | :---------: | :---------: | :-----------------------------------------------------------: | :---------------------------------------------------------: | :------------------------------------------------------------: |
|                        ✅                        |                                 ✅                                |                               ✅                              |      ✅      |      ✅      |                               ✅                               |                              ✅                              |                                ✅                               |

## 设置

要访问 `ChatTogetherAI` models，你需要create a Together account, [get an API key](https://api.together.xyz/), and install the `@langchain/community` integration package.

### 凭证

前往 [api.together.ai](https://api.together.ai/) 注册 TogetherAI 并生成 API 密钥。完成后设置 `TOGETHER_AI_API_KEY` 环境变量：

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

如果你想要自动追踪模型调用，还可以设置你的 [LangSmith](/langsmith/home) API 密钥，取消注释以下内容：

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

### 安装

LangChain 的 ChatTogetherAI 集成位于 `@langchain/community` 包中：

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

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

  ```bash pnpm theme={"theme":{"light":"catppuccin-latte","dark":"catppuccin-mocha"}}
  pnpm add @langchain/community @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 { ChatTogetherAI } from "@langchain/community/chat_models/togetherai"

const llm = new ChatTogetherAI({
    model: "mistralai/Mixtral-8x7B-Instruct-v0.1",
    temperature: 0,
    // 其他参数...
})
```

## 调用

```typescript theme={"theme":{"light":"catppuccin-latte","dark":"catppuccin-mocha"}}
const aiMsg = await llm.invoke([
    [
        "system",
        "You are a helpful assistant that translates English to French. Translate the user sentence.",
    ],
    ["human", "I love programming."],
])
aiMsg
```

```text theme={"theme":{"light":"catppuccin-latte","dark":"catppuccin-mocha"}}
AIMessage {
  "id": "chatcmpl-9rT9qEDPZ6iLCk6jt3XTzVDDH6pcI",
  "content": "J'adore la programmation.",
  "additional_kwargs": {},
  "response_metadata": {
    "tokenUsage": {
      "completionTokens": 8,
      "promptTokens": 31,
      "totalTokens": 39
    },
    "finish_reason": "stop"
  },
  "tool_calls": [],
  "invalid_tool_calls": [],
  "usage_metadata": {
    "input_tokens": 31,
    "output_tokens": 8,
    "total_tokens": 39
  }
}
```

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

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

***

## API 参考

有关所有 `ChatTogetherAI` 功能和配置的详细文档，请前往 [API 参考](https://reference.langchain.com/javascript/langchain-community/chat_models/togetherai/ChatTogetherAI)。

***

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