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

# Kling 2.1 i2v

> Kuaishou's Kling 2.1 i2v model. Generate videos from reference images with camera control, motion brush, and multi-shot storyboarding.

Kling 2.1 i2v is an image-to-video generation model from Kuaishou's Kling series, available through Anyfast API. Transform static images into dynamic videos with customizable camera movements, motion brushes, and multi-shot storyboarding.

## Key capabilities

* **Image-to-Video** — Generate videos from first frame and/or end frame reference images
* **Camera Control** — Preset and custom camera movements (pan, tilt, zoom, roll)
* **Motion Brush** — Static and dynamic brush masks for precise motion control
* **Multi-Shot** — Create up to 6 storyboard shots with custom prompts and durations
* **Standard & Pro Modes** — Choose between cost-effective standard or high-quality professional output

## Quick example

<CodeGroup>
  ```bash cURL theme={null}
  curl https://www.anyfast.ai/kling/v1/videos/image2video \
    -H "Authorization: Bearer YOUR_API_KEY" \
    -H "Content-Type: application/json" \
    -d '{
      "model_name": "kling-v2-1",
      "image": "https://example.com/photo.jpg",
      "prompt": "The person smiles and waves to the camera",
      "duration": "5",
      "mode": "std"
    }'
  ```

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

  response = requests.post(
      "https://www.anyfast.ai/kling/v1/videos/image2video",
      headers={
          "Authorization": "Bearer YOUR_API_KEY",
          "Content-Type": "application/json"
      },
      json={
          "model_name": "kling-v2-1",
          "image": "https://example.com/photo.jpg",
          "prompt": "The person smiles and waves to the camera",
          "duration": "5",
          "mode": "std"
      }
  )

  task = response.json()
  print(f"Task ID: {task['task_id']}")
  ```
</CodeGroup>

## Parameters

| Parameter         | Type   | Required    | Description                                |
| ----------------- | ------ | ----------- | ------------------------------------------ |
| `model_name`      | string | No          | Must be `kling-v2-1`                       |
| `image`           | string | Conditional | First frame image (Base64 or URL)          |
| `image_tail`      | string | Conditional | End frame image (Base64 or URL)            |
| `prompt`          | string | Conditional | Text prompt (max 2500 chars)               |
| `negative_prompt` | string | No          | Negative prompt (max 2500 chars)           |
| `mode`            | string | No          | `std` or `pro`. Default: `std`             |
| `duration`        | string | No          | `3`–`15` seconds. Default: `5`             |
| `cfg_scale`       | float  | No          | Prompt relevance `0`–`1`. Default: `0.5`   |
| `camera_control`  | object | No          | Camera movement control                    |
| `sound`           | string | No          | `on` or `off`. Default: `off` (V2.6+ only) |
| `callback_url`    | string | No          | Webhook URL for notifications              |

<Card title="API Reference" icon="code" href="/api-reference/model-api/kuaishou/kling-v2-1-i2v">
  View the interactive API playground for Kling 2.1 i2v.
</Card>

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