> Discover all available pages from the documentation index: https://mastra.zisheng.pro/zh-HK/llms.txt

# ![Perplexity Agent 標誌](https://models.dev/logos/perplexity-agent.svg)Perplexity Agent

透過 Mastra 的模型路由器存取 20 個 Perplexity Agent 模型。系統會自動使用 `PERPLEXITY_API_KEY` 環境變數進行驗證。

詳情請參閱[Perplexity Agent 文件](https://docs.perplexity.ai/docs/agent-api/models)。

```bash
PERPLEXITY_API_KEY=your-api-key
```

```typescript
import { Agent } from '@mastra/core/agent'

const agent = new Agent({
  id: 'my-agent',
  name: 'My Agent',
  instructions: 'You are a helpful assistant',
  model: 'perplexity-agent/anthropic/claude-haiku-4-5',
})

// Generate a response
const response = await agent.generate('Hello!')

// Stream a response
const stream = await agent.stream('Tell me a story')
for await (const chunk of stream) {
  console.log(chunk)
}
```

> **資訊:** Mastra 使用與 OpenAI 相容的 `/chat/completions` 端點。部分 Provider 專屬功能可能無法使用，詳情請參閱[Perplexity Agent 文件](https://docs.perplexity.ai/docs/agent-api/models)。

## 模型

| Model                                                | Context | Tools | Reasoning | Image | Audio | Video | Input $/1M | Output $/1M |
| ---------------------------------------------------- | ------- | ----- | --------- | ----- | ----- | ----- | ---------- | ----------- |
| `perplexity-agent/anthropic/claude-haiku-4-5`        | 200K    |       |           |       |       |       | $1         | $5          |
| `perplexity-agent/anthropic/claude-opus-4-5`         | 200K    |       |           |       |       |       | $5         | $25         |
| `perplexity-agent/anthropic/claude-opus-4-6`         | 200K    |       |           |       |       |       | $5         | $25         |
| `perplexity-agent/anthropic/claude-opus-4-7`         | 1.0M    |       |           |       |       |       | $5         | $25         |
| `perplexity-agent/anthropic/claude-sonnet-4-5`       | 200K    |       |           |       |       |       | $3         | $15         |
| `perplexity-agent/anthropic/claude-sonnet-4-6`       | 200K    |       |           |       |       |       | $3         | $15         |
| `perplexity-agent/google/gemini-2.5-flash`           | 1.0M    |       |           |       |       |       | $0.30      | $3          |
| `perplexity-agent/google/gemini-2.5-pro`             | 1.0M    |       |           |       |       |       | $1         | $10         |
| `perplexity-agent/google/gemini-3-flash-preview`     | 1.0M    |       |           |       |       |       | $0.50      | $3          |
| `perplexity-agent/google/gemini-3.1-pro-preview`     | 1.0M    |       |           |       |       |       | $2         | $12         |
| `perplexity-agent/moonshot-ai/kimi-k2.7-code`        | 262K    |       |           |       |       |       | $0.95      | $4          |
| `perplexity-agent/moonshot-ai/kimi-k3`               | 1.0M    |       |           |       |       |       | $3         | $15         |
| `perplexity-agent/nvidia/nemotron-3-super-120b-a12b` | 1.0M    |       |           |       |       |       | $0.25      | $3          |
| `perplexity-agent/openai/gpt-5-mini`                 | 400K    |       |           |       |       |       | $0.25      | $2          |
| `perplexity-agent/openai/gpt-5.1`                    | 400K    |       |           |       |       |       | $1         | $10         |
| `perplexity-agent/openai/gpt-5.2`                    | 400K    |       |           |       |       |       | $2         | $14         |
| `perplexity-agent/openai/gpt-5.4`                    | 1.1M    |       |           |       |       |       | $3         | $15         |
| `perplexity-agent/openai/gpt-5.5`                    | 1.1M    |       |           |       |       |       | $5         | $30         |
| `perplexity-agent/perplexity/sonar`                  | 128K    |       |           |       |       |       | $0.25      | $3          |
| `perplexity-agent/xai/grok-4-1-fast-non-reasoning`   | 2.0M    |       |           |       |       |       | $0.20      | $0.50       |

## 進階設定

### 自訂標頭

```typescript
const agent = new Agent({
  id: 'custom-agent',
  name: 'custom-agent',
  model: {
    url: 'https://api.perplexity.ai/v1',
    id: 'perplexity-agent/anthropic/claude-haiku-4-5',
    apiKey: process.env.PERPLEXITY_API_KEY,
    headers: {
      'X-Custom-Header': 'value',
    },
  },
})
```

### 動態選擇模型

```typescript
const agent = new Agent({
  id: 'dynamic-agent',
  name: 'Dynamic Agent',
  model: ({ requestContext }) => {
    const useAdvanced = requestContext.task === 'complex'
    return useAdvanced
      ? 'perplexity-agent/xai/grok-4-1-fast-non-reasoning'
      : 'perplexity-agent/anthropic/claude-haiku-4-5'
  },
})
```

## 直接安裝 Provider

此 Provider 亦可直接安裝為獨立套件，用來取代 Mastra 模型路由器字串。詳情請參閱[套件文件](https://www.npmjs.com/package/@ai-sdk/openai)。

**npm**:

```bash
npm install @ai-sdk/openai
```

**pnpm**:

```bash
pnpm add @ai-sdk/openai
```

**Yarn**:

```bash
yarn add @ai-sdk/openai
```

**Bun**:

```bash
bun add @ai-sdk/openai
```