Alibaba Happy Horse 1.0 (Text-to-Video) generates cinematic 720p / 1080p videos from text prompts with smooth camera movement, expressive motion, and strong prompt fidelity. Ready-to-use REST API, best performance, no coldstarts, affordable pricing.
Idle
$0.7per run·~14 / $10
ExamplesView all
A young woman standing in the dusty living room of her childhood home during the afternoon, holding an old cassette tape she has just found in a drawer. The room is filled with old furniture, framed family photos, and soft sunlight coming through thin curtains. Her expression is nostalgic and slightly emotional. Realistic cinematic photography, intimate family drama, warm muted tones, slice-of-life storytelling, film still
A young female detective in a long black trench coat stands on a neon-lit, rain-soaked street, clutching a photograph wet with raindrops. She glances up at a mysterious hooded man in the distance, her eyes instantly sharpening. The man turns and disappears into an alley, and the detective immediately gives chase. The camera begins with a close-up of the photograph in her hand, slowly panning up to her eyes, then quickly zooms in as she runs into a narrow alley. Rain splashes, neon lights reflect in the puddles, and the background is imbued with a cyberpunk urban atmosphere. Cinematic feel, low-angle tracking shot, shallow depth of field, strong blue-purple lighting, tense and suspenseful pacing, realistic cinematic video, 24fps, dynamic camera movement.
Related Models
README
Alibaba Happy Horse 1.0 Text-to-Video
Alibaba Happy Horse 1.0 Text-to-Video turns natural-language prompts into cinematic videos with smooth motion, strong prompt alignment, and stable subject rendering. It supports both 720p and 1080p output, along with multiple aspect ratios for ad creatives, social content, storytelling, and concept work.
- Need to animate a reference image instead? Try Alibaba Happy Horse 1.0 Image-to-Video.
Why Choose This?
-
Strong prompt fidelity Follows detailed instructions for scene composition, action, lighting, mood, and camera movement.
-
Cinematic motion Generates smooth, expressive motion with stable subjects and polished visual dynamics.
-
Flexible aspect ratios Supports
16:9,9:16,1:1,4:3, and3:4for landscape, portrait, and square video formats. -
Resolution options for different needs Choose
720pfor lower-cost iteration or1080pfor higher-quality final outputs. -
Production-ready API Access the model through a REST inference API with no cold starts for easy integration into creative workflows.
Parameters
| Parameter | Required | Description |
|---|---|---|
| prompt | Yes | Text prompt describing the desired video. Maximum 2500 characters. |
| aspect_ratio | No | Output aspect ratio: 16:9 (default), 9:16, 1:1, 4:3, or 3:4. |
| resolution | No | Output resolution: 720p (default) or 1080p. |
| duration | No | Video length in seconds. Range: 3–15, default 5. |
| seed | No | Random seed for reproducibility. Range: 0–2147483647. |
How to Use
- Write your prompt — describe the scene, subject, action, camera movement, lighting, and mood.
- Choose aspect ratio — select the format that best matches your target platform or creative layout.
- Choose resolution — use
720pfor faster, cheaper iteration or1080pfor higher-quality outputs. - Set duration — choose a clip length between
3and15seconds. - Set a seed (optional) — use a fixed seed if you want more reproducible results.
- Submit — generate and download your video.
Example Prompt
A cinematic street scene at night, light rain falling, soft reflections on wet pavement, a stylish woman walking slowly toward the camera, gentle dolly-in movement, neon glow, shallow depth of field, elegant and atmospheric mood
Pricing
Per 5 Seconds
| Resolution | Cost |
|---|---|
| 720p | $0.70 |
| 1080p | $1.40 |
Example Costs
| Resolution | 3s | 5s | 10s | 15s |
|---|---|---|---|---|
| 720p | $0.42 | $0.70 | $1.40 | $2.10 |
| 1080p | $0.84 | $1.40 | $2.80 | $4.20 |
Billing Rules
- Base price:
720pcosts $0.70 per 5 seconds - 1080p surcharge:
1080pcosts 2× the720prate - Total price formula:
total_price = 0.70 × (resolution == "1080p" ? 2 : 1) × duration / 5
Best Use Cases
- Ad creatives — Generate short cinematic promo videos from detailed campaign concepts.
- Social media content — Create scroll-stopping vertical, square, or landscape videos for different platforms.
- Concept visualization — Turn written ideas into motion previews for pitching, ideation, or storyboarding.
- Brand storytelling — Build polished mood-driven clips with specific lighting, movement, and atmosphere.
- Creative prototyping — Explore different visual directions quickly before committing to full production.
- Short-form cinematic scenes — Generate expressive clips for teasers, motion concepts, and narrative experiments.
Pro Tips
- Be specific in your prompt about subject, action, camera movement, lighting, and mood.
- Mention visual style clearly, such as cinematic, commercial, dreamy, realistic, or editorial.
- Use
720pfor rapid testing, then switch to1080pfor final-quality renders. - Pick the aspect ratio based on the final destination:
9:16for short-form mobile,16:9for widescreen, and1:1for square layouts. - Reuse the same
seedwhen you want more reproducible outputs. - Start with shorter durations to validate motion and composition before generating longer clips.
Notes
promptis the only required field.- Supported aspect ratios are
16:9,9:16,1:1,4:3, and3:4. - Supported resolutions are
720pand1080p. - Supported video duration is
3–15 seconds. - Pricing scales linearly with
duration. 1080ppricing is exactly 2× the720prate.
Related Models
- Alibaba Happy Horse 1.0 Image-to-Video — Animate a reference image into a cinematic video clip.
Happyhorse 1.0 Text To Video API — Quick start
Grab a WaveSpeedAI API key, then call POST https://api.wavespeed.ai/api/v3/alibaba/happyhorse-1.0/text-to-video with your input as JSON. The endpoint returns a prediction id; poll the prediction endpoint until status flips to completed, then read the output URL from data.outputs[0]. Examples for Happyhorse 1.0 Text To Video below.
HTTP example
# Submit the prediction
curl -X POST "https://api.wavespeed.ai/api/v3/alibaba/happyhorse-1.0/text-to-video" \
-H "Content-Type: application/json" \
-H "Authorization: Bearer $WAVESPEED_API_KEY" \
-d '{
"prompt": "A cinematic shot of a city at sunset, soft golden light",
"aspect_ratio": "16:9",
"resolution": "720p",
"duration": 5,
"seed": 0
}'
# Response includes a prediction id. Poll for the result:
curl -X GET "https://api.wavespeed.ai/api/v3/predictions/{request_id}/result" \
-H "Authorization: Bearer $WAVESPEED_API_KEY"
# When status is "completed", read the output from data.outputs[0].Node.js example
// npm install wavespeed
const WaveSpeed = require('wavespeed');
const client = new WaveSpeed(); // reads WAVESPEED_API_KEY from env
const result = await client.run("alibaba/happyhorse-1.0/text-to-video", {
"prompt": "A cinematic shot of a city at sunset, soft golden light",
"aspect_ratio": "16:9",
"resolution": "720p",
"duration": 5,
"seed": 0
});
console.log(result.outputs[0]); // → URL of the generated outputPython example
# pip install wavespeed
import wavespeed
output = wavespeed.run(
"alibaba/happyhorse-1.0/text-to-video",
{
"prompt": "A cinematic shot of a city at sunset, soft golden light",
"aspect_ratio": "16:9",
"resolution": "720p",
"duration": 5,
"seed": 0
}
)
print(output["outputs"][0]) # → URL of the generated outputHappyhorse 1.0 Text To Video API — Frequently asked questions
What is the Happyhorse 1.0 Text To Video API?
Happyhorse 1.0 Text To Video is a Alibaba model for video generation, exposed as a REST API on WaveSpeedAI. Alibaba Happy Horse 1.0 (Text-to-Video) generates cinematic 720p / 1080p videos from text prompts with smooth camera movement, expressive motion, and strong prompt fidelity. Ready-to-use REST API, best performance, no coldstarts, affordable pricing. You can call it programmatically or try it from the playground above.
How do I call the Happyhorse 1.0 Text To Video API?
POST your input parameters to the model's REST endpoint (shown in the API tab of this playground) with your WaveSpeedAI API key in the Authorization header. Submission returns a prediction ID; poll the prediction endpoint until status flips to "completed", then read the output URL from the result. The playground generates a ready-to-paste code sample in Python, JavaScript, or cURL for whatever inputs you've set. Full request/response shape is documented at https://wavespeed.ai/docs/docs-api/alibaba/alibaba-happyhorse-1.0-text-to-video.
How much does Happyhorse 1.0 Text To Video cost per run?
Happyhorse 1.0 Text To Video starts at $0.70 per run. That figure is the base price — the final charge scales with the parameters you set in the form (output size, length, count, references, or whatever knobs this model exposes), so a higher-quality or larger output costs more than a minimal one. The exact cost for your current input is shown live next to the Generate button before you submit, and the actual per-call charge is recorded on the prediction afterwards.
What inputs does Happyhorse 1.0 Text To Video accept?
Key inputs: `prompt`, `aspect_ratio`, `resolution`, `duration`, `seed`. The full JSON schema (types, defaults, allowed values) is rendered above the Generate button and mirrored in the API reference at https://wavespeed.ai/docs/docs-api/alibaba/alibaba-happyhorse-1.0-text-to-video.
How do I get started with the Happyhorse 1.0 Text To Video API?
Sign up for a free WaveSpeedAI account to claim starter credits, copy your API key from /accesskey, then call the endpoint shown in the API tab of the playground. The playground also auto-generates a code sample in Python, JavaScript, or cURL for the parameters you've set.
Can I use Happyhorse 1.0 Text To Video outputs commercially?
Commercial usage rights depend on the model's license, set by its provider (Alibaba). The license summary appears on the model card above; see WaveSpeedAI's Terms of Service for platform-level conditions.