happyhorse/reference-to-video

HappyHorse - reference-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": {
    "prompt": "\u2026",
    "reference_image": "\u2026"
  },
  "model": "happyhorse-reference-to-video"
}

Input parameters

Name	Type	Required	Description
`prompt`	string	required	Text prompt describing the video to generate (any language). Max 5,000 non‑Chinese characters or 2,500 Chinese characters; extra content is truncated.
`reference_image`	array	required	Reference image URL list. Provide 1–9 images. The order defines which image is character1, character2, etc. Image limits: Format: JPEG, JPG, PNG, and WEBP. Resolution: shortest side at least 400 px. 720P or higher recommended. Avoid small, blurry, or heavily compressed images, as they degrade output quality. File size: 10 MB maximum.
`resolution`	string	optional	Output video resolution. Valid values: 720P, 1080P (default). Values: `720p`, `1080p` Default: `1080p`
`aspect_ratio`	string	optional	Output aspect ratio. Valid values: 16:9 (default), 9:16, 1:1, 4:3, 3:4. Values: `16:9`, `9:16`, `1:1`, `4:3`, `3:4` Default: `16:9`
`duration`	integer	optional	Output duration in seconds (integer). 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.