Infinitalk - From Audio

Endpoint

POST /audio/generations

Full URL: https://modelfold.ai/v1/audio/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 infinitalk/from-audio for this endpoint Default："infinitalk/from-audio"。 Allowed values：infinitalk/from-audio。 Example：infinitalk/from-audio。
image_url	string	Yes	URL of the input image. (File URL after upload, not file content; Accepted types: image/jpeg, image/png, image/webp; Max size: 10.0MB) Example：https://file.aiquickdraw.com/custom-page/akr/section-images/1757329269873ggqj2hz3.png。
audio_url	string	Yes	The URL of the audio file. (File URL after upload, not file content; Accepted types: audio/mpeg, audio/wav, audio/x-wav, audio/aac, audio/mp4, audio/ogg; Max size: 10.0MB) Example：https://file.aiquickdraw.com/custom-page/akr/section-images/1757329255705mmqwrnri.mp3。
prompt	string	Yes	The text prompt to guide video generation. (Max length: 5000 characters) maxLength: 5000. Example：A young woman with long dark hair talking on a podcast.。
resolution	string	No	Resolution of the video to generate. Must be either 480p or 720p. Default："480p"。 Allowed values：480p / 720p。 Example：480p。
seed	number	No	Random seed for reproducibility. Valid range is 10000 to 1000000.

Request Example

curl -X POST "https://modelfold.ai/v1/audio/generations" \
  -H "Authorization: Bearer $MODELFOLD_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "model": "infinitalk/from-audio",
  "image_url": "https://file.aiquickdraw.com/custom-page/akr/section-images/1757329269873ggqj2hz3.png",
  "audio_url": "https://file.aiquickdraw.com/custom-page/akr/section-images/1757329255705mmqwrnri.mp3",
  "prompt": "A young woman with long dark hair talking on a podcast.",
  "resolution": "480p"
}'

{
  "model": "infinitalk/from-audio",
  "image_url": "https://file.aiquickdraw.com/custom-page/akr/section-images/1757329269873ggqj2hz3.png",
  "audio_url": "https://file.aiquickdraw.com/custom-page/akr/section-images/1757329255705mmqwrnri.mp3",
  "prompt": "A young woman with long dark hair talking on a podcast.",
  "resolution": "480p"
}

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.mp3"
    }
  ],
  "usage": {}
}