# HappyHorse 1.0 API

> Alibaba's HappyHorse 1.0: text to video, image to video, reference to video and video to video, up to 1080p. By Alibaba, on Revana from $0.17 per second of video.

- Model id: `happyhorse-1.0`
- Kind: video
- Maker: Alibaba
- Tasks: Text to video, Image to video, Reference to video, Video to video
- Resolutions: 720p, 1080p
- Durations: 3 to 15 seconds
- Audio: silent only
- Routes: 2 (starts on the cheapest, falls back automatically)
- Status: live on the API
- Page: https://revana.si/models/happyhorse-1.0

## Price (per second of video, USD)

| Resolution | Price | Credits |
|---|---|---|
| 720p | $0.17 | 17 |
| 1080p | $0.29 | 29 |

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": "happyhorse-1.0",
  "input": {
    "prompt": "A slow dolly shot through a neon-lit night market in the rain, steam rising from food stalls",
    "resolution": "720p",
    "duration": 3
  }
}
```

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

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