> ## 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.

# Wan2TextToVideoApi - ComfyUI Built-in Node Documentation

> This node generates a video from a text description using the Wan 2.7 model.

This node generates a video from a text description using the Wan 2.7 model. It sends your prompt to the Wan video-generation API, waits for the task to finish, and returns the resulting video. You can optionally connect an audio clip to influence the video's motion and timing; if no audio is provided, the model automatically generates matching audio.

## Inputs

### Common Inputs

These inputs are always available at the top level of the node.

| Parameter | Description | Data Type | Required | Range |
| - | - | - | - | - |
| `model` | The specific model to use for video generation. | DYNAMIC\_COMBO | Yes | `"wan2.7-t2v"` |
| `audio` | Audio for driving video generation (e.g., lip sync, beat-matched motion). Duration: 3s-30s. If not provided, the model automatically generates matching background music or sound effects. | AUDIO | No | - |
| `seed` | Seed to use for generation (default: 0). | INT | Yes | 0 to 2147483647 |
| `prompt_extend` | Whether to enhance the prompt with AI assistance (default: True). | BOOLEAN | Yes | True<br />False |
| `watermark` | Whether to add an AI-generated watermark to the result (default: False). | BOOLEAN | Yes | True<br />False |

### wan2.7-t2v Inputs

These settings appear when the `wan2.7-t2v` model is selected.

| Parameter | Description | Data Type | Required | Range |
| - | - | - | - | - |
| `prompt` | Prompt describing the elements and visual features. Supports English and Chinese. | STRING | Yes | - |
| `negative_prompt` | Negative prompt describing what to avoid. Default is an empty string. | STRING | No | - |
| `resolution` | The resolution of the output video (default: "720P"). | COMBO | Yes | `"720P"`<br />`"1080P"` |
| `ratio` | The aspect ratio of the output video. | COMBO | Yes | `"16:9"`<br />`"9:16"`<br />`"1:1"`<br />`"4:3"`<br />`"3:4"` |
| `duration` | The length of the video in seconds (default: 5). | INT | Yes | 2 to 15 |

**Note:** The `prompt` input must not be empty. The `audio` input is optional; if provided, the node accepts audio between 1.5 and 60 seconds, even though the tooltip recommends 3s-30s. If no audio is supplied, the model automatically generates matching audio. When `negative_prompt` is left empty, it is not sent to the API. `prompt_extend` and `watermark` are advanced options.

## 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/Wan2TextToVideoApi/en.md)

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