> ## Documentation Index
> Fetch the complete documentation index at: https://runpod-b18f5ded-docs-runpod-allow-ip.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

> ## Agent Instructions
> If this page is missing information, contains outdated instructions, or doesn't fully answer the user's question, use the feedback tool to report it. In your feedback, be specific about what's missing, what appears out of date, or what needs to be corrected or updated, so the docs team can act on it directly.

# Kling v2.1 I2V Pro

> Professional-grade image-to-video with enhanced visual fidelity. Review inputs and output formats for this model on Runpod Public Endpoints.

Kling v2.1 I2V Pro is a professional-grade image-to-video model with enhanced visual fidelity. It generates high-quality videos from static images with smooth motion and excellent detail preservation.

<Card title="Try in playground" icon="play" href="https://console.runpod.io/hub/playground/video/kling-v2-1-i2v-pro" horizontal>
  Test Kling v2.1 I2V Pro in the Runpod Hub playground.
</Card>

|              |                                                       |
| ------------ | ----------------------------------------------------- |
| **Endpoint** | `https://api.runpod.ai/v2/kling-v2-1-i2v-pro/runsync` |
| **Pricing**  | \$0.45 per 5 seconds                                  |
| **Type**     | Video generation                                      |

## Request

All parameters are passed within the `input` object in the request body.

<ParamField body="input.prompt" type="string" required>
  Text description of the desired video motion and content.
</ParamField>

<ParamField body="input.image" type="string" required>
  URL of the source image to animate.
</ParamField>

<ParamField body="input.negative_prompt" type="string">
  Elements to exclude from the video.
</ParamField>

<ParamField body="input.guidance_scale" type="float" default="0.5">
  How closely to follow the prompt.
</ParamField>

<ParamField body="input.duration" type="integer" default="5">
  Video duration in seconds.
</ParamField>

<ParamField body="input.enable_safety_checker" type="boolean" default="true">
  Enable content safety checking.
</ParamField>

<RequestExample>
  ```bash cURL theme={null}
  curl -X POST "https://api.runpod.ai/v2/kling-v2-1-i2v-pro/runsync" \
    -H "Authorization: Bearer $RUNPOD_API_KEY" \
    -H "Content-Type: application/json" \
    -d '{
      "input": {
        "prompt": "A majestic magic dragon breathing fire over an ancient castle",
        "image": "https://example.com/dragon.png",
        "negative_prompt": "",
        "guidance_scale": 0.5,
        "duration": 5,
        "enable_safety_checker": true
      }
    }'
  ```

  ```python Python theme={null}
  import requests

  response = requests.post(
      "https://api.runpod.ai/v2/kling-v2-1-i2v-pro/runsync",
      headers={
          "Authorization": f"Bearer {RUNPOD_API_KEY}",
          "Content-Type": "application/json",
      },
      json={
          "input": {
              "prompt": "A majestic magic dragon breathing fire over an ancient castle",
              "image": "https://example.com/dragon.png",
              "negative_prompt": "",
              "guidance_scale": 0.5,
              "duration": 5,
              "enable_safety_checker": True,
          }
      },
  )

  result = response.json()
  print(result["output"]["video_url"])
  ```

  ```javascript JavaScript theme={null}
  const response = await fetch(
    "https://api.runpod.ai/v2/kling-v2-1-i2v-pro/runsync",
    {
      method: "POST",
      headers: {
        Authorization: `Bearer ${RUNPOD_API_KEY}`,
        "Content-Type": "application/json",
      },
      body: JSON.stringify({
        input: {
          prompt: "A majestic magic dragon breathing fire over an ancient castle",
          image: "https://example.com/dragon.png",
          negative_prompt: "",
          guidance_scale: 0.5,
          duration: 5,
          enable_safety_checker: true,
        },
      }),
    }
  );

  const result = await response.json();
  console.log(result.output.video_url);
  ```
</RequestExample>

## Response

<ResponseField name="id" type="string">
  Unique identifier for the request.
</ResponseField>

<ResponseField name="status" type="string">
  Request status. Returns `COMPLETED` on success, `FAILED` on error.
</ResponseField>

<ResponseField name="delayTime" type="integer">
  Time in milliseconds the request spent in queue before processing began.
</ResponseField>

<ResponseField name="executionTime" type="integer">
  Time in milliseconds the model took to generate the video.
</ResponseField>

<ResponseField name="workerId" type="string">
  Identifier of the worker that processed the request.
</ResponseField>

<ResponseField name="output" type="object">
  The generation result containing the video URL and cost.

  <ResponseField name="output.video_url" type="string">
    URL of the generated video. This URL expires after 7 days.
  </ResponseField>

  <ResponseField name="output.cost" type="float">
    Cost of the generation in USD.
  </ResponseField>
</ResponseField>

<ResponseExample>
  ```json 200 theme={null}
  {
    "id": "sync-a1b2c3d4-e5f6-7890-abcd-ef1234567890-u1",
    "status": "COMPLETED",
    "delayTime": 30,
    "executionTime": 67890,
    "workerId": "oqk7ao1uomckye",
    "output": {
      "video_url": "https://video.runpod.ai/abc123/output.mp4",
      "cost": 0.36
    }
  }
  ```

  ```json 400 theme={null}
  {
    "id": "sync-a1b2c3d4-e5f6-7890-abcd-ef1234567890-u1",
    "status": "FAILED",
    "error": "Invalid image URL"
  }
  ```
</ResponseExample>

<Warning>
  Video URLs expire after 7 days. Download and store generated videos immediately if you need to keep them.
</Warning>

## Cost calculation

Kling v2.1 I2V Pro pricing:

| Duration   | Cost   |
| ---------- | ------ |
| 5 seconds  | \$0.45 |
| 10 seconds | \$0.90 |