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# ViduExtendVideoNode - ComfyUI Built-in Node Documentation

> Complete documentation for the ViduExtendVideoNode node in ComfyUI. Learn its inputs, outputs, parameters and usage.

> This documentation was AI-generated. If you find any errors or have suggestions for improvement, please feel free to contribute! [Edit on GitHub](https://github.com/Comfy-Org/embedded-docs/blob/main/comfyui_embedded_docs/docs/ViduExtendVideoNode/en.md)

The ViduExtendVideoNode generates additional frames to extend the length of an existing video. It uses a specified AI model to create a seamless continuation based on the source video and an optional text prompt.

## Inputs

| Parameter          | Data Type | Required | Range                                | Description                                                                                                                                                                        |
| ------------------ | --------- | -------- | ------------------------------------ | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| `model`            | COMBO     | Yes      | `"viduq2-pro"`<br />`"viduq2-turbo"` | The AI model to use for video extension. Selecting a model reveals its specific duration and resolution settings.                                                                  |
| `model.duration`   | INT       | Yes      | 1 to 7                               | The duration of the extended video in seconds (default: 4). This setting appears after selecting a model.                                                                          |
| `model.resolution` | COMBO     | Yes      | `"720p"`<br />`"1080p"`              | The resolution of the output video. This setting appears after selecting a model.                                                                                                  |
| `video`            | VIDEO     | Yes      | -                                    | The source video to extend.                                                                                                                                                        |
| `prompt`           | STRING    | No       | -                                    | An optional text prompt to guide the content of the extended video (max 2000 characters, default: empty).                                                                          |
| `seed`             | INT       | No       | 0 to 2147483647                      | A seed value for controlling the randomness of the generation (default: 1).                                                                                                        |
| `end_frame`        | IMAGE     | No       | -                                    | An optional image to use as the target end frame for the extension. If provided, its aspect ratio must be between 1:4 and 4:1, and its dimensions must be at least 128x128 pixels. |

**Note:** The source `video` must have a duration between 4 and 55 seconds.

## Outputs

| Output Name | Data Type | Description                                                     |
| ----------- | --------- | --------------------------------------------------------------- |
| `output`    | VIDEO     | The newly generated video file containing the extended footage. |