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

# ![Snowflake Cortex 標誌](https://models.dev/logos/snowflake-cortex.svg)Snowflake Cortex

透過 Mastra 的模型路由器存取 21 個 Snowflake Cortex 模型。系統會自動使用 `SNOWFLAKE_CORTEX_PAT` 環境變數進行驗證，並須同時設定 `SNOWFLAKE_ACCOUNT`。

詳情請參閱[Snowflake Cortex 文件](https://docs.snowflake.com/en/user-guide/snowflake-cortex/cortex-rest-api)。

```bash
SNOWFLAKE_ACCOUNT=your-value
SNOWFLAKE_CORTEX_PAT=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: 'snowflake-cortex/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` 端點。部分 Provider 專屬功能可能無法使用，詳情請參閱[Snowflake Cortex 文件](https://docs.snowflake.com/en/user-guide/snowflake-cortex/cortex-rest-api)。

## 模型

| Model                                     | Context | Tools | Reasoning | Image | Audio | Video | Input $/1M | Output $/1M |
| ----------------------------------------- | ------- | ----- | --------- | ----- | ----- | ----- | ---------- | ----------- |
| `snowflake-cortex/claude-fable-5`         | 1.0M    |       |           |       |       |       | —          | —           |
| `snowflake-cortex/claude-haiku-4-5`       | 200K    |       |           |       |       |       | —          | —           |
| `snowflake-cortex/claude-opus-4-7`        | 1.0M    |       |           |       |       |       | —          | —           |
| `snowflake-cortex/claude-opus-4-8`        | 1.0M    |       |           |       |       |       | —          | —           |
| `snowflake-cortex/claude-sonnet-4-5`      | 200K    |       |           |       |       |       | —          | —           |
| `snowflake-cortex/claude-sonnet-4-6`      | 1.0M    |       |           |       |       |       | —          | —           |
| `snowflake-cortex/deepseek-r1`            | 128K    |       |           |       |       |       | —          | —           |
| `snowflake-cortex/gemini-3.1-pro`         | 1.0M    |       |           |       |       |       | —          | —           |
| `snowflake-cortex/mistral-large2`         | 262K    |       |           |       |       |       | —          | —           |
| `snowflake-cortex/openai-gpt-4.1`         | 1.0M    |       |           |       |       |       | —          | —           |
| `snowflake-cortex/openai-gpt-5`           | 400K    |       |           |       |       |       | —          | —           |
| `snowflake-cortex/openai-gpt-5-mini`      | 272K    |       |           |       |       |       | —          | —           |
| `snowflake-cortex/openai-gpt-5-nano`      | 400K    |       |           |       |       |       | —          | —           |
| `snowflake-cortex/openai-gpt-5.1`         | 400K    |       |           |       |       |       | —          | —           |
| `snowflake-cortex/openai-gpt-5.2`         | 400K    |       |           |       |       |       | —          | —           |
| `snowflake-cortex/openai-gpt-5.4`         | 1.1M    |       |           |       |       |       | —          | —           |
| `snowflake-cortex/openai-gpt-5.5`         | 1.1M    |       |           |       |       |       | —          | —           |
| `snowflake-cortex/openai-gpt-5.6-luna`    | 1.1M    |       |           |       |       |       | —          | —           |
| `snowflake-cortex/openai-gpt-5.6-sol`     | 1.1M    |       |           |       |       |       | —          | —           |
| `snowflake-cortex/openai-gpt-5.6-terra`   | 1.1M    |       |           |       |       |       | —          | —           |
| `snowflake-cortex/snowflake-llama3.3-70b` | 128K    |       |           |       |       |       | —          | —           |

## 進階設定

### 自訂標頭

```typescript
const agent = new Agent({
  id: 'custom-agent',
  name: 'custom-agent',
  model: {
    url: 'https://${SNOWFLAKE_ACCOUNT}.snowflakecomputing.com/api/v2/cortex/v1',
    id: 'snowflake-cortex/claude-fable-5',
    apiKey: process.env.SNOWFLAKE_CORTEX_PAT,
    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
      ? 'snowflake-cortex/snowflake-llama3.3-70b'
      : 'snowflake-cortex/claude-fable-5'
  },
})
```