Model reference
Happy Horse 1.1
Alibaba 1.1 video model featuring reduced per-second rates, nine aspect ratios, and directed motion workflows.
| Property | Value |
|---|---|
modelSlug | happy-horse-1-1 |
| Kind | Video |
| Maker | Alibaba |
Copies per request (variations) | 1 to 5 |
| How the cost is counted | per second of output (from duration), at a rate that depends on mode and resolution |
| Over MCP | yes, with the generate tool |
Credit amounts are left out because they change. The lowest price is creditCost on GET /v1/models, and POST /v1/jobs answers with the exact creditCost of a request.
input fields
Send the fields below inside the input object. A field you leave out takes its Default. Unknown field names are dropped without an error, so check the spelling if a setting seems to have no effect.
| Field | Type | Required | Default | Rules |
|---|---|---|---|---|
prompt | string | – | – | Up to 5,000 characters |
mode | string (one of) | – | text | text, image, reference |
first_frame | string[] (image upload ids) | – | – | First frame. One file at most |
reference_images | string[] (image upload ids) | – | – | Reference images. Up to 9 files |
aspect_ratio | string (one of) | – | 16:9 | 16:9, 9:16, 1:1, 4:3, 3:4, 4:5, 5:4, 9:21, 21:9 |
resolution | string (one of) | – | 720p | 720p, 1080p |
duration | integer | – | 5 | 3 to 15 |
Rules by setting
This model runs a different version depending on what you send. The rules below are checked before any credits move; a request that breaks one is refused with 400 and a message naming the field.
mode = text
- Takes no files in
first_frameandreference_images; a request that fills one is refused. prompt1 to 4,999 characters.
mode = image
aspect_ratiois not used; any value sent is ignored.- Takes no files in
reference_images; a request that fills one is refused. first_frame: required; one file at most; at most 20 MB per file; sides at least 300 px; width to height ratio 0.4 to 2.5.
mode = reference
- Takes no files in
first_frame; a request that fills one is refused. reference_images: required; up to 9 files; at most 20 MB per file; sides at least 400 px.promptat least 1 characters.
Example request
{
"modelSlug": "happy-horse-1-1",
"input": {
"prompt": "The camera circles slowly around a steaming cup of coffee on a wooden table"
}
}