# Vidu Q4 Preview API

> Shengshu's Vidu Q4 Preview: image to video and reference to video, up to 4K, with sound. By Shengshu, on Revana from $0.06 per second of video.

- Model id: `vidu-q4-preview`
- Kind: video
- Maker: Shengshu
- Tasks: Image to video, Reference to video
- Resolutions: 540p, 720p, 1080p, 2K, 4K
- Durations: 3 to 16 seconds
- Aspect ratios: 16:9, 9:16, 4:3, 3:4, 1:1
- Audio: supported (`"audio": true`)
- Input images: up to 15
- Routes: 1
- Status: live on the API
- Page: https://revana.si/models/vidu-q4-preview

## Price (per second of video, USD)

| Resolution | Price | Credits |
|---|---|---|
| 540p | $0.06 | 6 |
| 720p | $0.12 | 12 |
| 1080p | $0.13 | 13 |
| 2K | $0.21 | 21 |
| 4K | $0.42 | 42 |

100 credits = $1. Charged once, only for the route that succeeds; failed generations cost nothing.

## Request

POST https://api.revana.si/v1/generations with `Authorization: Bearer $REVANA_API_KEY`:

```json
{
  "model": "vidu-q4-preview",
  "input": {
    "prompt": "A slow dolly shot through a neon-lit night market in the rain, steam rising from food stalls",
    "image_url": "https://example.com/start-frame.jpg",
    "resolution": "720p",
    "duration": 3,
    "aspect_ratio": "16:9",
    "audio": true
  }
}
```

Poll `GET /v1/generations/{id}` until `status` is `succeeded` or `failed`, then download `GET /v1/generations/{id}/content`. Full API: https://revana.si/llms.txt

## Similar models

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- [Vidu Q3 Mix](https://revana.si/models/vidu-q3-mix.md): from $0.13 per second of video
- [Vidu Q3 Pro](https://revana.si/models/vidu-q3-pro.md): from $0.07 per second of video
- [Vidu Q3 Turbo](https://revana.si/models/vidu-q3-turbo.md): from $0.04 per second of video
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- [Seedance 2.5](https://revana.si/models/seedance-2.5.md): from $0.06 per second of video