This node generates a video from a text description using the Wan 2.7 model. It sends your request to an external API, which processes the prompt and returns a video file. You can optionally provide an audio clip to influence the video's motion and timing.

## Inputs

| Parameter | Description | Data Type | Required | Range |
| --- | --- | --- | --- | --- |
| `model` | The specific model to use for video generation. | COMBO | Yes | `"wan2.7-t2v"` |
| `model.prompt` | A description of the elements and visual features you want in the video. Supports English and Chinese. | STRING | Yes | - |
| `model.negative_prompt` | A description of elements or features you want to avoid in the generated video. | STRING | No | - |
| `model.resolution` | The resolution of the output video. | COMBO | Yes | `"720P"`<br>`"1080P"` |
| `model.ratio` | The aspect ratio of the output video. | COMBO | Yes | `"16:9"`<br>`"9:16"`<br>`"1:1"`<br>`"4:3"`<br>`"3:4"` |
| `model.duration` | The length of the video in seconds (default: 5). | INT | Yes | 2 to 15 |
| `audio` | An audio file to drive video generation, such as for lip-syncing or motion matching the beat. If not provided, the model will generate matching background music or sound effects. The audio duration must be between 1.5 and 60 seconds. | AUDIO | No | - |
| `seed` | A number used to control the randomness of the generation, ensuring reproducible results (default: 0). | INT | No | 0 to 2147483647 |
| `prompt_extend` | When enabled, the prompt will be enhanced with AI assistance (default: True). | BOOLEAN | No | - |
| `watermark` | When enabled, an AI-generated watermark will be added to the result (default: False). | BOOLEAN | No | - |

**Note:** The `audio` parameter is optional. If provided, its duration must be between 1.5 and 60 seconds. If omitted, the model will automatically generate audio.

## 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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