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

# ![Berget.AI 標誌](https://models.dev/logos/berget.svg)Berget.AI

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

如需進一步了解，請參閱[Berget.AI 文件](https://api.berget.ai)。

```bash
BERGET_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: 'berget/google/gemma-4-31B-it',
})

// 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[Berget.AI 文件](https://api.berget.ai)。

## 模型

| Model                                                  | Context | Tools | Reasoning | Image | Audio | Video | Input $/1M | Output $/1M |
| ------------------------------------------------------ | ------- | ----- | --------- | ----- | ----- | ----- | ---------- | ----------- |
| `berget/google/gemma-4-31B-it`                         | 128K    |       |           |       |       |       | $0.28      | $0.55       |
| `berget/meta-llama/Llama-3.3-70B-Instruct`             | 128K    |       |           |       |       |       | $0.99      | $0.99       |
| `berget/mistralai/Mistral-Medium-3.5-128B`             | 262K    |       |           |       |       |       | $2         | $6          |
| `berget/mistralai/Mistral-Small-3.2-24B-Instruct-2506` | 32K     |       |           |       |       |       | $0.33      | $0.33       |
| `berget/moonshotai/Kimi-K2.6`                          | 262K    |       |           |       |       |       | $0.83      | $4          |
| `berget/moonshotai/Kimi-K3`                            | 328K    |       |           |       |       |       | $3         | $15         |
| `berget/openai/gpt-oss-120b`                           | 128K    |       |           |       |       |       | $0.22      | $0.83       |
| `berget/zai-org/GLM-4.7`                               | 128K    |       |           |       |       |       | $0.77      | $3          |
| `berget/zai-org/GLM-5.2`                               | 524K    |       |           |       |       |       | $2         | $5          |

## 進階設定

### 自訂標頭

```typescript
const agent = new Agent({
  id: 'custom-agent',
  name: 'custom-agent',
  model: {
    url: 'https://api.berget.ai/v1',
    id: 'berget/google/gemma-4-31B-it',
    apiKey: process.env.BERGET_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 ? 'berget/zai-org/GLM-5.2' : 'berget/google/gemma-4-31B-it'
  },
})
```