happyhorse-image-to-video

HappyHorse - image-to-video

video HappyHorse price on request

Request

POST https://app.video-blade.com/api/v1/generations
X-API-Key: vb_…
Content-Type: application/json

{
  "callback_url": "https://your-app.example/callbacks/video-blade",
  "input": {
    "image_urls ": "\u2026"
  },
  "model": "happyhorse-image-to-video"
}

Input parameters

Name	Type	Required	Description
`prompt`	string	optional	Text prompt describing the video to generate (any language). Max 5,000 non‑Chinese characters or 2,500 Chinese characters; extra content is truncated.
`image_urls`	array	required	First-frame image URL list. Exactly one image is required. Image constraints: Format: JPEG, JPG, PNG, WEBP. Resolution: Width and height must be at least 300 pixels. Aspect ratio: 1:2.5 to 2.5:1. File size: Up to 10 MB.
`resolution`	string	optional	Output video resolution. Valid values: 720P, 1080P (default). Values: `720p`, `1080p` Default: `1080p`
`duration`	integer	optional	Output duration in seconds. Must be between 3 and 15. Defaults to 5. Default: `5`
`seed`	integer	optional	Random seed for reproducibility (if supported). Default: `0`

Pricing

Price on request; the charge is settled from actual consumption with the video coefficient ×2.0. See Pricing & tokens.