# Kling Video v2.6 Image to Video

> Kling 2.6 Pro: Top-tier image-to-video with cinematic visuals, fluid motion, and native audio generation.


## Overview

- **Endpoint**: `https://fal.run/fal-ai/kling-video/v2.6/pro/image-to-video`
- **Model ID**: `fal-ai/kling-video/v2.6/pro/image-to-video`
- **Category**: image-to-video
- **Kind**: inference


## Pricing

Videos generated without audio cost $0.07 per second. Videos with native audio cost $0.14 per second, and videos with native audio and voice control cost $0.168 per second. For example, a 5-second video with audio costs $0.70, while a 10-second video with audio and voice control costs $1.68

For more details, see [fal.ai pricing](https://fal.ai/pricing).

## API Information

This model can be used via our HTTP API or more conveniently via our client libraries.
See the input and output schema below, as well as the usage examples.


### Input Schema

The API accepts the following input parameters:


- **`prompt`** (`string`, _required_)
  - Examples: "A king walks slowly and says \"My people, here I am! I am here to save you all\""

- **`start_image_url`** (`string`, _required_):
  URL of the image to be used for the video
  - Examples: "https://v3b.fal.media/files/b/0a84ab29/BSJXz9Ht-jgRgMf4IGxLU_upscaled.png"

- **`duration`** (`DurationEnum`, _optional_):
  The duration of the generated video in seconds Default value: `"5"`
  - Default: `"5"`
  - Options: `"5"`, `"10"`

- **`negative_prompt`** (`string`, _optional_):
   Default value: `"blur, distort, and low quality"`
  - Default: `"blur, distort, and low quality"`

- **`generate_audio`** (`boolean`, _optional_):
  Whether to generate native audio for the video. Supports Chinese and English voice output. Other languages are automatically translated to English. For English speech, use lowercase letters; for acronyms or proper nouns, use uppercase. Default value: `true`
  - Default: `true`

- **`voice_ids`** (`list<string>`, _optional_):
  Optional Voice IDs for video generation. Reference voices in your prompt with <<<voice_1>>> and <<<voice_2>>> (maximum 2 voices per task). Get voice IDs from the kling video create-voice endpoint: https://fal.ai/models/fal-ai/kling-video/create-voice
  - Array of string

- **`end_image_url`** (`string`, _optional_):
  URL of the image to be used for the end of the video



**Required Parameters Example**:

```json
{
  "prompt": "A king walks slowly and says \"My people, here I am! I am here to save you all\"",
  "start_image_url": "https://v3b.fal.media/files/b/0a84ab29/BSJXz9Ht-jgRgMf4IGxLU_upscaled.png"
}
```

**Full Example**:

```json
{
  "prompt": "A king walks slowly and says \"My people, here I am! I am here to save you all\"",
  "start_image_url": "https://v3b.fal.media/files/b/0a84ab29/BSJXz9Ht-jgRgMf4IGxLU_upscaled.png",
  "duration": "5",
  "negative_prompt": "blur, distort, and low quality",
  "generate_audio": true
}
```


### Output Schema

The API returns the following output format:

- **`video`** (`File`, _required_):
  The generated video
  - Examples: {"file_size":11814817,"file_name":"output.mp4","content_type":"video/mp4","url":"https://v3b.fal.media/files/b/0a84ab51/Qr1twf8UgtD5rZHpNXC2P_output.mp4"}



**Example Response**:

```json
{
  "video": {
    "file_size": 11814817,
    "file_name": "output.mp4",
    "content_type": "video/mp4",
    "url": "https://v3b.fal.media/files/b/0a84ab51/Qr1twf8UgtD5rZHpNXC2P_output.mp4"
  }
}
```


## Usage Examples

### cURL

```bash
curl --request POST \
  --url https://fal.run/fal-ai/kling-video/v2.6/pro/image-to-video \
  --header "Authorization: Key $FAL_KEY" \
  --header "Content-Type: application/json" \
  --data '{
     "prompt": "A king walks slowly and says \"My people, here I am! I am here to save you all\"",
     "start_image_url": "https://v3b.fal.media/files/b/0a84ab29/BSJXz9Ht-jgRgMf4IGxLU_upscaled.png"
   }'
```

### Python

Ensure you have the Python client installed:

```bash
pip install fal-client
```

Then use the API client to make requests:

```python
import fal_client

def on_queue_update(update):
    if isinstance(update, fal_client.InProgress):
        for log in update.logs:
           print(log["message"])

result = fal_client.subscribe(
    "fal-ai/kling-video/v2.6/pro/image-to-video",
    arguments={
        "prompt": "A king walks slowly and says \"My people, here I am! I am here to save you all\"",
        "start_image_url": "https://v3b.fal.media/files/b/0a84ab29/BSJXz9Ht-jgRgMf4IGxLU_upscaled.png"
    },
    with_logs=True,
    on_queue_update=on_queue_update,
)
print(result)
```

### JavaScript

Ensure you have the JavaScript client installed:

```bash
npm install --save @fal-ai/client
```

Then use the API client to make requests:

```javascript
import { fal } from "@fal-ai/client";

const result = await fal.subscribe("fal-ai/kling-video/v2.6/pro/image-to-video", {
  input: {
    prompt: "A king walks slowly and says \"My people, here I am! I am here to save you all\"",
    start_image_url: "https://v3b.fal.media/files/b/0a84ab29/BSJXz9Ht-jgRgMf4IGxLU_upscaled.png"
  },
  logs: true,
  onQueueUpdate: (update) => {
    if (update.status === "IN_PROGRESS") {
      update.logs.map((log) => log.message).forEach(console.log);
    }
  },
});
console.log(result.data);
console.log(result.requestId);
```


## Additional Resources

### Documentation

- [Model Playground](https://fal.ai/models/fal-ai/kling-video/v2.6/pro/image-to-video)
- [API Documentation](https://fal.ai/models/fal-ai/kling-video/v2.6/pro/image-to-video/api)
- [OpenAPI Schema](https://fal.ai/api/openapi/queue/openapi.json?endpoint_id=fal-ai/kling-video/v2.6/pro/image-to-video)

### fal.ai Platform

- [Platform Documentation](https://docs.fal.ai)
- [Python Client](https://docs.fal.ai/clients/python)
- [JavaScript Client](https://docs.fal.ai/clients/javascript)