HappyHorse-1.0 API

规格 / 通道	官方	云厂商
1080p	$0.48	$0.336
720p	$0.28	$0.196

规格 / 通道	官方	云厂商
1080p	$0.48	$0.336
720p	$0.28	$0.196

规格 / 通道	官方	云厂商
1080p	$0.48	$0.336
720p	$0.28	$0.196

规格 / 通道	官方	云厂商
1080p	$0.48	$0.336
720p	$0.28	$0.196

Input

prompt *

Required edit instruction describing the intended change (e.g., style transfer / local replacement). Max 5,000 non‑Chinese characters or 2,500 Chinese characters; extra content is truncated.486/5000

video_url

File 1

Drag and drop or click to upload your imageMP4, QUICKTIME · 100 MB

File uploads require configured image storage. A public HTTPS image URL can be used directly.

Input video URL list. Exactly one video is required. Duration: 3–60s. Resolution: long side ≤ 2160px, short side ≥ 320px. Aspect ratio: 1:2.5 to 2.5:1. Frame rate: > 8 fps.

reference_image

Drag and drop or click to upload your imageJPEG, PNG, WEBP, JPG · 10 MB

File uploads require configured image storage. A public HTTPS image URL can be used directly.

Optional reference image URL list (0–5). JPEG/JPG/PNG/WEBP, up to 10MB each. Minimum resolution: width and height ≥ 300px. Aspect ratio: 1:2.5 to 2.5:1.

resolution

Output video resolution. Valid values: 720P, 1080P (default).

audio_setting

Audio handling strategy for the output video.

seed

Random seed. Range: [0, 2147483647]. If not specified, the system generates a seed automatically. Fixing the seed can improve reproducibility, but results may still vary due to the model’s stochasticity.