> ## Documentation Index
> Fetch the complete documentation index at: https://docs.comfy.org/llms.txt
> Use this file to discover all available pages before exploring further.

# 将 AI Image Upscaler Precision V2 与 Comfy Router 配合使用

> 通过 Comfy Router 调用 freepik/ai-image-upscaler-precision-v2：端点、请求结构以及 Router 返回的响应。

由 Comfy Router 从 Freepik 提供的 `freepik/ai-image-upscaler-precision-v2` API 参考。

## 快速开始

在[你的 Comfy 工作区](https://platform.comfy.org/profile/api-keys)中创建一个密钥，并将其导出为 `COMFY_API_KEY`。Python 和 TypeScript 代码片段使用 Comfy SDK（`pip install comfy-sdk`、`npm install @comfyorg/sdk`）；cURL 代码片段则是通过原始 HTTP 发起的同一调用。

**模型 ID:** `freepik/ai-image-upscaler-precision-v2`

**端点:** `POST https://api.comfy.org/v2/models/freepik/ai-image-upscaler-precision-v2`

<Tabs>
  <Tab title="Wait for the result">
    <CodeGroup>
      ```python Python theme={null}
      from comfy_sdk import Comfy

      # Reads COMFY_API_KEY from the environment.
      # The SDK automatically creates an idempotency key and reuses it for automatic retries.
      with Comfy() as client:
          result = client.models.run(
              "freepik/ai-image-upscaler-precision-v2",
              {
                  "image": "https://img.magnific.com/free-photo/light-through-mountains_395237-33.jpg?semt=ais_hybrid&w=740&q=80",
                  "scale_factor": 8,
              },
          )

      print(result)
      ```

      ```typescript TypeScript theme={null}
      import { comfy } from "@comfyorg/sdk";

      // Reads COMFY_API_KEY from the environment.
      // The SDK automatically creates an idempotency key and reuses it for automatic retries.
      const { data } = await comfy.models.run("freepik/ai-image-upscaler-precision-v2", {
        image: "https://img.magnific.com/free-photo/light-through-mountains_395237-33.jpg?semt=ais_hybrid&w=740&q=80",
        scale_factor: 8,
      });

      console.log(data);
      ```

      ```bash cURL theme={null}
      curl https://api.comfy.org/v2/models/freepik/ai-image-upscaler-precision-v2 \
        -H "X-API-Key: $COMFY_API_KEY" \
        -H "Idempotency-Key: $(uuidgen)" \
        -H "Content-Type: application/json" \
        -d "{\"image\": \"https://img.magnific.com/free-photo/light-through-mountains_395237-33.jpg?semt=ais_hybrid&w=740&q=80\", \"scale_factor\": 8}"
      ```
    </CodeGroup>
  </Tab>

  <Tab title="Queue and collect later">
    <CodeGroup>
      ```python Python theme={null}
      from comfy_sdk import Comfy

      # Reads COMFY_API_KEY from the environment.
      # Each submit() call mints its own Idempotency-Key and reuses it for automatic retries.
      with Comfy() as client:
          handle = client.models.submit(
              "freepik/ai-image-upscaler-precision-v2",
              {
                  "image": "https://img.magnific.com/free-photo/light-through-mountains_395237-33.jpg?semt=ais_hybrid&w=740&q=80",
                  "scale_factor": 8,
              },
          )
          print("request_id:", handle.request_id)  # with the model ID, all another process needs

          # Poll until the request completes, waiting the Retry-After the server names.
          for update in handle.iter_events():
              print(update.status, update.queue_position)

          # The provider's own payload, the same value models.run() returns.
          # A request that failed or was cancelled raises the typed Router error here.
          result = handle.get()

      print(result)
      ```

      ```typescript TypeScript theme={null}
      import { comfy } from "@comfyorg/sdk";

      // Reads COMFY_API_KEY from the environment.
      // Each submit() call mints its own Idempotency-Key and reuses it for automatic retries.
      const handle = await comfy.models.submit("freepik/ai-image-upscaler-precision-v2", {
        image: "https://img.magnific.com/free-photo/light-through-mountains_395237-33.jpg?semt=ais_hybrid&w=740&q=80",
        scale_factor: 8,
      });
      console.log("requestId:", handle.requestId); // with the model ID, all another process needs

      // Poll until the request completes, waiting the Retry-After the server names.
      for await (const update of handle.events()) {
        console.log(update.status, update.queuePosition);
      }

      // The same result models.run() returns. A request that failed or was cancelled rejects here.
      const result = await handle.get();

      console.log(result.data);
      ```

      ```bash cURL theme={null}
      # 1. Submit. Router answers 201 with request_id, status_url, response_url and cancel_url.
      curl https://api.comfy.org/v2/models/freepik/ai-image-upscaler-precision-v2/requests \
        -H "X-API-Key: $COMFY_API_KEY" \
        -H "Idempotency-Key: $(uuidgen)" \
        -H "Content-Type: application/json" \
        -d "{\"image\": \"https://img.magnific.com/free-photo/light-through-mountains_395237-33.jpg?semt=ais_hybrid&w=740&q=80\", \"scale_factor\": 8}"

      # 2. Poll until status is COMPLETED, waiting the Retry-After seconds each response names.
      REQUEST_ID="<request_id from the 201 body>"
      curl -i https://api.comfy.org/v2/models/freepik/ai-image-upscaler-precision-v2/requests/$REQUEST_ID/status \
        -H "X-API-Key: $COMFY_API_KEY"

      # 3. Collect. 200 with the model's native output, 202 with the status body while it is still running.
      curl https://api.comfy.org/v2/models/freepik/ai-image-upscaler-precision-v2/requests/$REQUEST_ID \
        -H "X-API-Key: $COMFY_API_KEY"
      ```
    </CodeGroup>
  </Tab>
</Tabs>

## Schema

### 输入

<ParamField body="flavor" type="string">
  图像处理风格：

  * sublime：针对艺术与插画类图像优化
  * photo：针对摄影类图像优化
  * photo\_denoiser：专为带噪波的照片设计，具备降噪能力

    可选值：`sublime`、`photo`、`photo_denoiser`
</ParamField>

<ParamField body="image" type="string" required>
  待放大的来源图像。支持以下两种形式：

  * 指向该图像的公开可访问 HTTPS URL
  * base64 编码的图像字符串
</ParamField>

<ParamField body="scale_factor" type="integer">
  图像缩放倍数。决定输出图像相比输入图像放大的程度。

  范围：`2` 至 `16`
</ParamField>

<ParamField body="sharpen" type="integer" default="7">
  图像锐度强度控制。数值越高，边缘轮廓与清晰度越强。

  范围：`0` 至 `100`
</ParamField>

<ParamField body="smart_grain" type="integer" default="7">
  智能颗粒/纹理增强。数值越高，添加的细腻纹理越多。

  范围：`0` 至 `100`
</ParamField>

<ParamField body="ultra_detail" type="integer" default="30">
  超精细细节增强级别。数值越高，生成的细节越繁复。

  范围：`0` 至 `100`
</ParamField>

<ParamField body="webhook_url" type="string (uri)">
  可选的回调 URL，用于在图像放大任务完成时接收异步通知。

  格式：`uri`
</ParamField>

本文档由 Router 在 `GET /v2/models/freepik/ai-image-upscaler-precision-v2/openapi.json` 提供的 schema 生成，与请求到达提供商之前 Router 用于校验调用的文档为同一份。

### 输出

<ResponseField name="data" type="object" required />

<ResponseField name="data.generated" type="string (uri)[]" required>
  已完成生成的图像 URL 列表。在 Router 返回的文档中该字段必定存在且非空；这个列表就是结果本身。这些链接由 Freepik 提供，并且会过期。
</ResponseField>

<ResponseField name="data.status" type="string" required>
  可选值：`COMPLETED`
</ResponseField>

<ResponseField name="data.task_id" type="string (uuid)">
  格式：`uuid`
</ResponseField>

## 示例

### 输入

```json theme={null}
{
  "image": "https://img.magnific.com/free-photo/light-through-mountains_395237-33.jpg?semt=ais_hybrid&w=740&q=80",
  "scale_factor": 8
}
```

### 输出

```json theme={null}
{
  "data": {
    "generated": [
      "https://example.invalid/freepik/ai-image-upscaler-precision-v2/upscaled.png"
    ],
    "status": "COMPLETED",
    "task_id": "046b6c7f-0b8a-43b9-b35d-6489e6daee91"
  }
}
```

## 发布前须知

SDK 会生成 `Idempotency-Key` 并在自动重试中复用它。手动重试时，请复用原始 key。Router 最长可保持连接 10 分钟。

请求失败时，Router 会发送 `X-Comfy-Error-Type` 响应头说明原因。`422` 表示 Router 在调用提供商之前就拒绝了输入。生成的资源请及时下载，因为[结果链接会过期](/zh/development/comfy-router/reference#结果资产)。

<CardGroup cols={3}>
  <Card title="请求头" icon="list" href="/zh/development/comfy-router/quickstart">
    身份验证、幂等性、请求 ID、错误分类、重试节奏、消费限额。
  </Card>

  <Card title="使用 Router API" icon="code" href="/zh/development/comfy-router/quickstart">
    模型发现、校验错误、重试与计费。
  </Card>

  <Card title="限制" icon="triangle-exclamation" href="/zh/development/comfy-router/limitations">
    Router 目前不支持的功能，以及替代方案。
  </Card>
</CardGroup>