# Runway Aleph2 Video to Video Node

This node edits a video using a text prompt with Runway's Aleph2 model. It transforms your footage by restyling, relighting, adding or removing elements, or changing the viewpoint while preserving the original motion and timing.

## Inputs

| Parameter | Description | Data Type | Required | Range |
|-----------|-------------|-----------|----------|-------|
| `prompt` | Describes what should appear in the output (1-1000 characters). | STRING | Yes | 1-1000 characters |
| `video` | Input video to edit. Must be 2-30 seconds at 30 fps or lower. | VIDEO | Yes | 2-30 seconds duration, 30 fps max |
| `seed` | Random seed for generation (default: 0). | INT | Yes | 0 to 4294967295 |
| `public_figure_threshold` | Content moderation for recognizable public figures (default: "low"). | COMBO | Yes | "auto"<br>"low" |
| `keyframes` | Guidance images anchored to the input video, from Aleph2 Keyframe nodes (up to 5). Use keyframes or prompt images, not both. | KEYFRAME | No | Up to 5 items |
| `prompt_images` | Guidance images anchored to the output video, from Aleph2 Prompt Image nodes (up to 5). Use keyframes or prompt images, not both. | PROMPT_IMAGE | No | Up to 5 items |

**Important constraints:**
- The input video must be between 2 and 30 seconds long and have a frame rate of 30 fps or lower.
- You can use either `keyframes` or `prompt_images` for guidance, but not both at the same time.
- Each guidance input (keyframes or prompt images) supports a maximum of 5 items.
- Keyframe timestamps and prompt image timestamps must not exceed the input video duration.

## Outputs

| Output Name | Description | Data Type |
|-------------|-------------|-----------|
| `video` | The edited video generated by the Aleph2 model. | VIDEO |

> 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/RunwayAleph2VideoToVideoNode/en.md)

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