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

# ![QiHang 標誌](https://models.dev/logos/qihang-ai.svg)QiHang

透過 Mastra 的模型路由器存取 9 個 QiHang 模型。系統會自動使用 `QIHANG_API_KEY` 環境變數進行驗證。

詳情請參閱[QiHang 文件](https://www.qhaigc.net/docs)。

```bash
QIHANG_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: 'qihang-ai/claude-haiku-4-5-20251001',
})

// 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[QiHang 文件](https://www.qhaigc.net/docs)。

## 模型

| Model                                  | Context | Tools | Reasoning | Image | Audio | Video | Input $/1M | Output $/1M |
| -------------------------------------- | ------- | ----- | --------- | ----- | ----- | ----- | ---------- | ----------- |
| `qihang-ai/claude-haiku-4-5-20251001`  | 200K    |       |           |       |       |       | $0.14      | $0.71       |
| `qihang-ai/claude-opus-4-5-20251101`   | 200K    |       |           |       |       |       | $0.71      | $4          |
| `qihang-ai/claude-sonnet-4-5-20250929` | 200K    |       |           |       |       |       | $0.43      | $2          |
| `qihang-ai/gemini-2.5-flash`           | 1.0M    |       |           |       |       |       | $0.09      | $0.71       |
| `qihang-ai/gemini-3-flash-preview`     | 1.0M    |       |           |       |       |       | $0.07      | $0.43       |
| `qihang-ai/gemini-3-pro-preview`       | 1.0M    |       |           |       |       |       | $0.57      | $3          |
| `qihang-ai/gpt-5-mini`                 | 200K    |       |           |       |       |       | $0.04      | $0.29       |
| `qihang-ai/gpt-5.2`                    | 400K    |       |           |       |       |       | $0.25      | $2          |
| `qihang-ai/gpt-5.2-codex`              | 400K    |       |           |       |       |       | $0.14      | $1          |

## 進階設定

### 自訂標頭

```typescript
const agent = new Agent({
  id: 'custom-agent',
  name: 'custom-agent',
  model: {
    url: 'https://api.qhaigc.net/v1',
    id: 'qihang-ai/claude-haiku-4-5-20251001',
    apiKey: process.env.QIHANG_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 ? 'qihang-ai/gpt-5.2-codex' : 'qihang-ai/claude-haiku-4-5-20251001'
  },
})
```