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

# ![Modelis 標誌](https://models.dev/logos/modelis.svg)Modelis

透過 Mastra 的模型路由器存取 9 個 Modelis 模型。系統會自動使用 `MODELIS_API_KEY` 環境變數完成身分驗證。

如需進一步了解，請參閱[Modelis 文件](https://modelishub.com/pricing)。

```bash
MODELIS_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: 'modelis/claude-fable-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` endpoint。部分 Provider 特有功能可能無法使用，詳情請參閱[Modelis 文件](https://modelishub.com/pricing)。

## 模型

| Model                       | Context | Tools | Reasoning | Image | Audio | Video | Input $/1M | Output $/1M |
| --------------------------- | ------- | ----- | --------- | ----- | ----- | ----- | ---------- | ----------- |
| `modelis/claude-fable-5`    | 1.0M    |       |           |       |       |       | $10        | $50         |
| `modelis/claude-opus-4-8`   | 1.0M    |       |           |       |       |       | $5         | $25         |
| `modelis/claude-sonnet-4-6` | 1.0M    |       |           |       |       |       | $3         | $15         |
| `modelis/deepseek-v4-flash` | 1.0M    |       |           |       |       |       | $0.10      | $0.20       |
| `modelis/deepseek-v4-pro`   | 1.0M    |       |           |       |       |       | $0.43      | $0.87       |
| `modelis/gemini-2.5-flash`  | 1.0M    |       |           |       |       |       | $0.30      | $3          |
| `modelis/gemini-2.5-pro`    | 1.0M    |       |           |       |       |       | $1         | $10         |
| `modelis/qwen/qwen3.7-max`  | 1.0M    |       |           |       |       |       | $3         | $9          |
| `modelis/qwen/qwen3.7-plus` | 1.0M    |       |           |       |       |       | $0.77      | $3          |

## 進階設定

### 自訂標頭

```typescript
const agent = new Agent({
  id: 'custom-agent',
  name: 'custom-agent',
  model: {
    url: 'https://modelishub.com/v1',
    id: 'modelis/claude-fable-5',
    apiKey: process.env.MODELIS_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 ? 'modelis/qwen/qwen3.7-plus' : 'modelis/claude-fable-5'
  },
})
```