Topaz - Video Upscale

Endpoint

POST /videos/generations

Full URL: https://modelfold.ai/v1/videos/generations

Authentication: every request must include the Authorization: Bearer <API_KEY> header.

Send model parameters directly in the JSON body. Do not wrap them in input. This request waits for generation to finish and returns data[].url; supported media models also offer async jobs, polling and callbacks. Replace example media URLs with your own publicly accessible files. See API gateway for billing and errors.

Input parameters for the generation task

Request Parameters

Body (application/json)

Parameter	Type	Required	Description
model	string	Yes	The model name to use for generation. Required field. - Must be topaz/video-upscale for this endpoint Default："topaz/video-upscale"。 Allowed values：topaz/video-upscale。 Example：topaz/video-upscale。
video_url	string	Yes	URL of the video to upscale (File URL after upload, not file content; Accepted types: video/mp4, video/quicktime, video/x-matroska; Max size: 50.0MB) Example：https://file.aiquickdraw.com/custom-page/akr/section-images/1758166466095hvbwkrpw.mp4。
upscale_factor	string	No	Upscale factor (string): "1", "2" (default) or "4". Default："2"。 Allowed values：1 / 2 / 4。 Example：2。
prompt	string	Yes	Prompt required by the ModelFold gateway; at most 2000 characters. maxLength: 2000.

Request Example

curl -X POST "https://modelfold.ai/v1/videos/generations" \
  -H "Authorization: Bearer $MODELFOLD_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "model": "topaz/video-upscale",
  "video_url": "https://file.aiquickdraw.com/custom-page/akr/section-images/1758166466095hvbwkrpw.mp4",
  "upscale_factor": "2",
  "prompt": "A paper boat drifting down a rainy street."
}'

{
  "model": "topaz/video-upscale",
  "video_url": "https://file.aiquickdraw.com/custom-page/akr/section-images/1758166466095hvbwkrpw.mp4",
  "upscale_factor": "2",
  "prompt": "A paper boat drifting down a rainy street."
}

Response

200 — Generation completed. usage contains actual billing details; result URLs are illustrative.

{
  "ok": true,
  "created": 1792134000,
  "data": [
    {
      "url": "https://modelfold.ai/uploads/outputs/result.mp4"
    }
  ],
  "usage": {}
}