wowmachine
alibaba/happyhorse-1.0

happyhorse-1.0

alibaba/happyhorse-1.0

Happy Horse 1.0 is Alibaba's text- and image-to-video model. Generate a clip from a prompt, or animate a single still image into a fluid 3–15 second video at 720p or 1080p, with five aspect ratios for vertical, landscape and square delivery.

Input

Describe the video you want to generate. Optional when an image is provided — in that case the prompt directs how the image is animated.

Optional first-frame image. When set, the model runs in image-to-video mode. Accepts JPG, PNG, BMP or WebP up to 10 MB; aspect ratio between 1:2.5 and 2.5:1; each side at least 300 px.

add_photo_alternate

Output video resolution. 1080p is sharper and costs roughly twice as much per second as 720p.

Output aspect ratio. Only applies in text-to-video mode; when an image is provided, its aspect ratio is preserved.

Length of the generated clip in seconds. Pricing scales linearly with duration.

Optional random seed for reproducible generations. Leave empty to randomise.

min: 0max: 2147483647

Output

movie

Run the model to see output here.

Examples

Pricing

**15 credits per second** at 720p · **29 credits per second** at 1080p. | Duration | 720p | 1080p | |---|---|---| | 3 s | 45 | 87 | | 5 s | 75 | 145 | | 8 s | 120 | 232 | | 10 s | 150 | 290 | | 15...

Features

## What Happy Horse 1.0 is good at Happy Horse 1.0 is Alibaba's flagship video model in the Happy Horse family — the first publicly deployed checkpoint of the architecture, designed around two workfl...

API Examples

curl -X POST \
  /api/v1/model/alibaba/happyhorse-1.0 \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "input": {}
}'

Tags