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

# ByteDanceTextToVideoNode - ComfyUI Built-in Node Documentation

> The ByteDance Text to Video node generates a video using ByteDance models through an API based on a text prompt.

The ByteDance Text to Video node generates a video using ByteDance models through an API based on a text prompt. You provide a prompt and choose settings such as the model, resolution, aspect ratio, and duration; the node submits the generation request and returns the generated video.

## Inputs

| Parameter | Description | Data Type | Required | Range |
| - | - | - | - | - |
| `model` | The ByteDance model used to generate the video (default: `"seedance-1-0-pro-fast-251015"`). | COMBO | Yes | `"seedance-1-5-pro-251215"`<br />`"seedance-1-0-pro-250528"`<br />`"seedance-1-0-pro-fast-251015"` |
| `prompt` | The text prompt used to generate the video. | STRING | Yes | - |
| `resolution` | The resolution of the output video. | COMBO | Yes | `"480p"`<br />`"720p"`<br />`"1080p"` |
| `aspect_ratio` | The aspect ratio of the output video. | COMBO | Yes | `"16:9"`<br />`"4:3"`<br />`"1:1"`<br />`"3:4"`<br />`"9:16"`<br />`"21:9"` |
| `duration` | The duration of the output video in seconds (default: 5). | INT | Yes | 3 to 12 |
| `seed` | Seed to use for generation (default: 0). | INT | No | 0 to 2147483647 |
| `camera_fixed` | Specifies whether to fix the camera. The platform appends an instruction to fix the camera to your prompt, but does not guarantee the actual effect (default: False). | BOOLEAN | No | - |
| `watermark` | Whether to add an "AI generated" watermark to the video (default: False). | BOOLEAN | No | - |
| `generate_audio` | This parameter is ignored for any model except `seedance-1-5-pro-251215` (default: False). | BOOLEAN | No | - |

**Parameter Constraints:**

* The `prompt` parameter must contain at least 1 character after whitespace removal.
* The `prompt` parameter cannot contain the following text parameters: "resolution", "ratio", "duration", "seed", "camerafixed", "watermark".
* The node builds the final prompt by appending the selected `resolution`, `aspect_ratio`, `duration`, `seed`, `camera_fixed`, and `watermark` settings to the prompt text.
* The `duration` parameter is limited to values between 3 and 12 seconds. For the `seedance-1-5-pro-251215` model, the minimum supported duration is 4 seconds.
* The `seed` parameter accepts values from 0 to 2,147,483,647.
* The `generate_audio` parameter only has an effect when the `model` is set to `seedance-1-5-pro-251215`; it is ignored for all other models.

## Outputs

| Output Name | Description | Data Type |
| - | - | - |
| `output` | The generated video file | 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/ByteDanceTextToVideoNode/en.md)

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