Medium shot of a professional news anchor at a sleek desk in a modern broadcast studio, cool blue lighting, softly glowing screens behind. 0-5s: He looks into the camera and says in a clear measured voice, "Good evening. Tonight, a breakthrough that could change how millions of us work." 5-10s: He turns slightly toward a second camera, "We'll have the full story, and what it means for you, right after this." Precise lip-sync, subtle studio room tone, crisp broadcast quality, shallow depth of field.
HappyHorse 1.1 API
Alibaba HappyHorse 1.1: strong character consistency and natural motion, 3–15 s.
Alibaba·VideoAvailable
from$0.063/ second$0.0710% off
Model IDhappyhorse-1.1
text-to-videoimage-to-video
Input
Text · Image
Output
Video
Provider
6 providers
Duration (s)
3 – 15
Resolution
480p · 720p · 1080p
Aspect ratio
16:9 · 9:16 · 1:1 · 4:3 · 3:4 · 21:9
Last 7 days · not enough recent requests for stats yet.
HappyHorse 1.1 pricing
Prices are per unit; requests without a provider are routed to the cheapest provider that supports your parameters.
| Option | 480p | 720p | 1080p |
|---|---|---|---|
| All options | $0.063 / second 7 Credits | $0.126 / second 13 Credits | $0.162 / second 17 Credits |
Try HappyHorse 1.1 before you integrate
Test output quality, compare provider prices and estimate cost before writing any code.
Provider
Video
Estimated cost
Input
prompt
image_url
duration
resolution
aspect_ratio
seed
Result
IdleYour generation will appear here.
Provider prices for this request
Enter a prompt to compare provider prices.
HappyHorse 1.1 prompt examples
Ready-to-use prompts. Load one into the playground and tweak it.
Source
Scene
9 prompts
A luxury perfume bottle standing on black marble, surrounded by white roses, soft mist, silver reflections, elegant high-end commercial photography, dramatic spotlight. Mist rolls across the marble surface as rose petals fall around the perfume bottle. A beam of light sweeps over the glass, revealing reflections and liquid movement inside the bottle. Smooth luxury product commercial motion.
The animal prances across the branch
A solitary sports car travels through an endless empty landscape at sunset. No buildings, no people, only the sound of wind and the distant engine. The camera follows from behind as the car disappears toward the horizon, leaving a trail of dust illuminated by golden sunlight. Long shadows stretch across the ground while the sky gradually transitions from warm orange to deep blue. Themes of freedom, escape, and self-discovery. Cinematic road movie atmosphere, emotional storytelling, minimalist composition, ultra realistic, masterpiece.
Medium shot of a professional news anchor at a sleek desk in a modern broadcast studio, cool blue lighting, softly glowing screens behind. 0-5s: He looks into the camera and says in a clear measured voice, "Good evening. Tonight, a breakthrough that could change how millions of us work." 5-10s: He turns slightly toward a second camera, "We'll have the full story, and what it means for you, right after this." Precise lip-sync, subtle studio room tone, crisp broadcast quality, shallow depth of field.
News anchor
Talking HeadA news anchor at a desk in a blue-lit studio. 0-5s: she says "Good evening, here are tonight's top stories." 5-10s: she turns to a second camera and says "First, a breakthrough in clean energy." Accurate lip-sync, room tone, shallow depth of field.
HappyHorse 1.1 API reference
Endpoints, request fields and runnable examples for this model.
Base URL
https://01router.com/api/v1Quick start
Set API_KEY to your project key, then run a sample from your server. Replace example media URLs with your own public URLs.
Auto-routing chooses a provider that supports the request. Select a provider to see its input constraints and pinned request examples.
curl https://01router.com/api/v1/generations \
-H "Authorization: Bearer $API_KEY" \
-H "Content-Type: application/json" \
--data-binary @- <<'JSON'
{
"model": "happyhorse-1.1",
"input": {
"prompt": "A cinematic shot of a red fox running through snow",
"duration": 5,
"resolution": "720p",
"aspect_ratio": "16:9"
}
}
JSON
# Replace GENERATION_ID with the id returned above; poll until status is "succeeded" or "failed"
curl https://01router.com/api/v1/generations/GENERATION_ID -H "Authorization: Bearer $API_KEY"Endpoints
Only endpoints relevant to this model are listed. Paths below include /api/v1. Click an endpoint to read its usage.
POSTGETPOSTPOSTGET
/api/v1/generationsCreate a generation (charges credits) · API key required
/api/v1/generations/{id}Get a generation; polls the provider while running · API key required
/api/v1/generations/{id}/cancelCancel a running generation (credits refunded) · API key required
/api/v1/quotePrice a request on every provider (no charge, no key needed) · Public · no key
/api/v1/models/happyhorse-1.1Get one model · Public · no key
Authentication
Send your API key as a Bearer token. Requests are billed to the key owner's credits.
Authorization: Bearer YOUR_API_KEY
Content-Type: application/jsonInput
Send JSON with Content-Type: application/json. Model parameters belong inside input; model, provider and callback_url are top-level fields.
Request body
| Name | Type | Required | Description |
|---|---|---|---|
| model | string | Yes | "happyhorse-1.1" |
| provider | string | No | Pin a provider; omit to auto-route to the cheapest. One of: fal | replicate | wavespeed | kie | apimart | atlascloud |
| input | object | Yes | Model parameters, see the input fields below. |
| callback_url | string | No | Optional public HTTPS webhook URL. The final task result is signed and delivered here; polling remains available. |
input · input fields
Required fields are marked explicitly. Other fields use the listed defaults when omitted.
| Name | Type | Required | Values | Default |
|---|---|---|---|---|
| prompt* | string | Yes | — | — |
| image_url Optional start image (image-to-video) | string | No | — | — |
| duration | integer | No | min: 3 · max: 15 | 5 |
| resolution | string | No | 480p | 720p | 1080p | 720p |
| aspect_ratio | string | No | 16:9 | 9:16 | 1:1 | 4:3 | 3:4 | 21:9 | 16:9 |
| seed | integer | No | min: 0 · max: 2147483647 | — |
Output
Creating a task does not mean generation has finished. Keep its id, poll until succeeded or failed, then read outputs or error. Amounts below are illustrative; actual charges depend on the request.
queued→processing→succeeded / failed
Task submitted
{
"id": "gen_example",
"object": "generation",
"model": "happyhorse-1.1",
"type": "video",
"provider": "fal",
"status": "processing",
"input": {
"prompt": "A cinematic shot of a red fox running through snow",
"duration": 5,
"resolution": "720p",
"aspect_ratio": "16:9"
},
"outputs": [],
"error": null,
"credits": 0,
"price_usd": 0,
"created_at": "2026-10-25T08:00:00.000Z",
"completed_at": null
}Task completed
{
"id": "gen_example",
"object": "generation",
"model": "happyhorse-1.1",
"type": "video",
"provider": "fal",
"status": "succeeded",
"input": {
"prompt": "A cinematic shot of a red fox running through snow",
"duration": 5,
"resolution": "720p",
"aspect_ratio": "16:9"
},
"outputs": [
"https://example.com/output.mp4"
],
"error": null,
"credits": 0,
"price_usd": 0,
"created_at": "2026-10-25T08:00:00.000Z",
"completed_at": "2026-10-25T08:01:00.000Z"
}Response fields
| Name | Type | Required | Description |
|---|---|---|---|
| id | string | Yes | Generation ID. Use it to query or cancel this task. |
| object | string | Yes | generation |
| model | string | Yes | happyhorse-1.1 |
| type | string | Yes | video |
| provider | string | Yes | Provider |
| status | string | Yes | queued → processing → succeeded / failed. Stop polling at either terminal state. |
| input | object | Yes | Model parameters, see the input fields below. |
| outputs | string[] | Yes | Result URLs. Empty while processing; read after succeeded and save the files promptly. |
| error | string | null | Yes | Failure reason, or null when no failure is reported. |
| credits | number | Yes | Credits charged for this request. |
| price_usd | number | Yes | Request price in USD. |
| created_at | string | Yes | Creation time in ISO 8601 format. |
| completed_at | string | null | Yes | Completion time in ISO 8601 format; null before completion. |
Get the result
Poll every few seconds until status is succeeded or failed. Output URLs are provider-hosted and may expire — download them promptly. Or pass callback_url to get the result pushed.
curl "https://01router.com/api/v1/generations/GENERATION_ID" \
-H "Authorization: Bearer $API_KEY"queued → processing → succeeded / failed. Stop polling at either terminal state. Result URLs. Empty while processing; read after succeeded and save the files promptly.
Cancel a task
Cancellation depends on provider support and task state. A confirmed cancellation returns status: failed and error: Canceled by user. Unsupported or completed tasks return 409 not_cancelable.
curl -X POST "https://01router.com/api/v1/generations/GENERATION_ID/cancel" \
-H "Authorization: Bearer $API_KEY"Quote
Same body as creating a generation. Returns every available provider sorted by price, plus the ones that cannot serve the request and why.
curl "https://01router.com/api/v1/quote" -H "Content-Type: application/json" --data-binary @- <<'JSON'
{
"model": "happyhorse-1.1",
"input": {
"prompt": "A cinematic shot of a red fox running through snow",
"duration": 5,
"resolution": "720p",
"aspect_ratio": "16:9"
}
}
JSONModel schema
This public endpoint returns the model parameters and each provider’s supported constraints and prices.
curl "https://01router.com/api/v1/models/happyhorse-1.1"Errors
Check the HTTP status and error.message. Fix the request before retrying validation or authentication errors. A failed generation is reported in status and error on the task itself.
{
"error": {
"message": "Invalid or missing API key",
"code": "unauthorized"
}
}400Invalid body or parameter value
401Missing or invalid API key
402Not enough credits
404Unknown model or generation
409The task cannot be canceled (already finished, or the provider does not support canceling)
429Too many requests — retry after the given seconds
502Every provider rejected the task (credits refunded)
Use with AI
Give your coding assistant this model reference: endpoints, input constraints, output fields and request examples in plain text.
How does HappyHorse 1.1 compare?
Specs and starting prices side by side. Test with the same prompt before you choose.
| HappyHorse 1.1 | Wan 3.0 | Wan 2.7 | Grok Imagine Video 1.5 | |
|---|---|---|---|---|
| Vendor | Alibaba | Alibaba | Alibaba | xAI |
| Starting price | $0.063 / second | $0.03 / second | $0.06 / second | $0.011 / second |
| Input | Text · Image | Text · Image | Text · Image | Text · Image |
| Provider | 6 providers | 7 providers | 7 providers | 10 providers |
| Duration (s) | 3 – 15 | 2 – 30 | 2 – 15 | 1 – 15 |
| Resolution | 480p · 720p · 1080p | 480p · 720p · 1080p | 720p · 1080p | 480p · 720p · 1080p |
| Aspect ratio | 16:9 · 9:16 · 1:1 · 4:3 · 3:4 · 21:9 | 16:9 · 9:16 · 1:1 · 4:3 · 3:4 | 16:9 · 9:16 · 1:1 · 4:3 · 3:4 | 16:9 · 4:3 · 3:2 · 1:1 · 2:3 · 3:4 · 9:16 |
HappyHorse 1.1 API FAQ
What is HappyHorse 1.1 known for?
Alibaba's HappyHorse is known for native audio with multilingual lip-sync, which makes it a good fit for talking heads, presenters and dialogue scenes.
What durations and resolutions are supported?
3 to 15 seconds at 480p, 720p or 1080p, in 16:9, 9:16, 1:1, 4:3, 3:4 or 21:9.
Can I animate an image?
Yes. Pass image_url as the first frame; the output follows the image's aspect ratio.
How do I time dialogue?
Write timestamps in the prompt, such as "0-5s: ... 5-10s: ...", and put the spoken lines in quotes.
How is it billed on 01router?
Per output second at the chosen resolution; see the pricing table. Failed generations are refunded.
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