Alibaba Happy Horse 1.0 Text-to-Video

Overview

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.

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Why Choose HappyHorse 1.0?

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, and 3:4 for landscape, portrait, and square video formats.

Resolution options for different needs

Choose 720p for lower-cost iteration or 1080p for higher-quality final outputs.

Endpoint

POSThttps://openapi.joypix.ai/v1/alibaba/text-to-video

Headers

Name	Value	Required
Content-Type	application/json	Yes
Authorization	Bearer ${JoyPix_API_KEY}	Yes

Parameters

Parameter	Required	Description
model	Yes	The name of the model. Set to:happyhorse-1.0-t2v
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 720p for faster, cheaper iteration or 1080p for higher-quality outputs.
Set duration: choose a clip length between 3 and 15 seconds.
Set a seed (optional): use a fixed seed if you want more reproducible results.
Submit: generate and download your video.

Example Request

{
  "model": "happyhorse-1.0-t2v",
  "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",
  "aspect_ratio": "16:9",
  "resolution": "1080p",
  "duration": 5,
  "seed": 123456
}

Response

{
  "code": 200,
  "message": "success",
  "data": {
    "task_id": "task_123456789"
  }
}

Get Task Status

Endpoint

GEThttps://openapi.joypix.ai/v1/tasks/${task_id}

Headers

Name	Value	Required
Authorization	Bearer ${JoyPix_API_KEY}	Yes

Response

{
  "code": 200,
  "message": "success",
  "data": {
    "task_id": "task_123456789",
    "inputs": "...",
    "model": "happyhorse-1.0-t2v",
    "status": "completed",
    "error": "",
    "video_url": "https://joypix-output.s3.amazonaws.com/..." // Note: Data is only saved for 24 hours, please download it as soon as possible
  }
}

Pricing

Resolution	Cost
720p	14 credits/s ($0.14/s)
1080p	24 credits/s ($0.24/s)

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 720p for rapid testing, then switch to 1080p for final-quality renders.
Pick the aspect ratio based on the final destination: 9:16 for short-form mobile, 16:9 for widescreen, and 1:1 for square layouts.
Reuse the same seed when you want more reproducible outputs.
Start with shorter durations to validate motion and composition before generating longer clips.

Notes

Supported aspect ratios are 16:9, 9:16, 1:1, 4:3, and 3:4.
Supported resolutions are 720p and 1080p.
Supported video duration is 3-15 seconds.
Pricing scales linearly with duration.