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

# Wan2.7 T2V

> Generate 30 fps videos with synchronized audio from text using Wan2.7 T2V.

Wan2.7 T2V is Alibaba Cloud's text-to-video model, available through the AnyFast asynchronous video API. It generates 720P or 1080P MP4 videos with synchronized audio and supports multi-shot storytelling.

`T2V` means **text-to-video**: the request uses a text prompt and does not require an input image or video.

## Key capabilities

* **Text-to-video** - Generate video from Chinese or English prompts
* **Synchronized audio** - Supply WAV/MP3 audio or let the model generate matching sound automatically
* **Resolution** - `720P` or `1080P`
* **Duration** - An integer from 2 to 15 seconds
* **Aspect ratio** - `16:9`, `9:16`, `1:1`, `4:3`, or `3:4`
* **Output** - 30 fps MP4 video

## Quick example

```bash cURL theme={null}
curl https://www.anyfast.ai/v1/video/generations \
  -H 'Authorization: Bearer YOUR_API_KEY' \
  -H 'Content-Type: application/json' \
  -d '{
    "model": "wan2.7-t2v",
    "input": {
      "prompt": "A paper boat sails through a neon-lit rainy city, cinematic tracking shot."
    },
    "parameters": {
      "resolution": "720P",
      "ratio": "16:9",
      "duration": 5,
      "prompt_extend": true,
      "watermark": false,
      "seed": 42
    }
  }'
```

<Note>
  Video generation is asynchronous. Save the returned task ID and poll the [Wan task query endpoint](/guides/model-api/alibaba/wan2-task-query). Task IDs and successful result URLs remain available for 24 hours.
</Note>

## Enable NSFW generation

1. Select the `Special-Ns` resource group when creating the API token.
2. Set `parameters.prompt_extend` to `false`. Its default value is `true`.

## Parameters

| Parameter                  | Type    | Required | Description                                                     |
| -------------------------- | ------- | -------- | --------------------------------------------------------------- |
| `model`                    | string  | Yes      | Must be `wan2.7-t2v`                                            |
| `input.prompt`             | string  | Yes      | Video description in Chinese or English, up to 5,000 characters |
| `input.negative_prompt`    | string  | No       | Content to exclude, up to 500 characters                        |
| `input.audio_url`          | string  | No       | Public WAV/MP3 URL; 2-30 seconds and up to 15 MB                |
| `parameters.resolution`    | string  | No       | `720P` or `1080P`. Default: `1080P`                             |
| `parameters.ratio`         | string  | No       | Output aspect ratio. Default: `16:9`                            |
| `parameters.duration`      | integer | No       | Duration from 2 to 15 seconds. Default: `5`                     |
| `parameters.prompt_extend` | boolean | No       | Rewrite and enrich the prompt. Default: `true`                  |
| `parameters.watermark`     | boolean | No       | Add an "AI Generated" watermark. Default: `false`               |
| `parameters.seed`          | integer | No       | Random seed in `[0, 2147483647]`                                |

If `audio_url` is omitted, the model generates matching audio. Audio longer than the requested video is truncated; if it is shorter, the remaining video is silent.

<CardGroup cols={2}>
  <Card title="API Reference" icon="code" href="/api-reference/model-api/alibaba/wan2.7-t2v">View the complete request schema.</Card>
  <Card title="Task Query" icon="magnifying-glass" href="/guides/model-api/alibaba/wan2-task-query">Poll the task and retrieve the result URL.</Card>
</CardGroup>

## Official reference

See the [Alibaba Cloud Model Studio Wan2.7 text-to-video API reference](https://www.alibabacloud.com/help/en/model-studio/text-to-video-api-reference).

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