Wan 2.5 - Image to Video

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 image-to-video task.

Request Parameters

Body (application/json)

Parameter	Type	Required	Description
model	string	Yes	The model name used for generation. This field is required. - This endpoint must use the wan/2-5-image-to-video model Default："wan/2-5-image-to-video"。 Allowed values：wan/2-5-image-to-video。 Example：wan/2-5-image-to-video。
prompt	string	Yes	Prompt required by the ModelFold gateway; at most 2000 characters. The text prompt describing the desired video motion. Maximum length: 800 characters. maxLength: 800. Example：The same woman from the reference image looks directly into the camera, takes a breath, then smiles brightly and speaks with enthusiasm: "Have you heard? Alibaba Wan 2.5 API is now available on modelfold.ai!" Ambient audio: quiet indoor atmosphere, soft natural room tone. Camera: medium close-up, steady framing, natural daylight mood, accurate lip-sync with dialogue.。
image_url	string	Yes	URL of the image to use as the first frame. Must be publicly accessible. - Please provide the URL of the uploaded file, not raw file content - Accepted types: image/jpeg, image/png, image/webp - Max size: 10.0MB Example：https://file.aiquickdraw.com/custom-page/akr/section-images/1758796480945qb63zxq8.webp。
duration	string	Yes	The duration of the generated video in seconds. - 5: 5 seconds - 10: 10 seconds Allowed values：5 / 10。 Example：5。
resolution	string	Yes	Required. 720p or 1080p. Allowed values：720p / 1080p。 Example：1080p。
negative_prompt	string	No	Negative prompt used to describe content to avoid. Maximum length: 500 characters. maxLength: 500.
enable_prompt_expansion	boolean	No	Whether to enable prompt rewriting using LLM. - Boolean value: true / false Example：true。
seed	integer	No	Random seed for reproducibility. If omitted, a random seed is chosen.
nsfw_checker	boolean	No	Defaults to false. When false, no additional content filtering is applied and results are returned directly by the model.

Request Example

curl -X POST "https://modelfold.ai/v1/videos/generations" \
  -H "Authorization: Bearer $MODELFOLD_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "model": "wan/2-5-image-to-video",
  "prompt": "The same woman from the reference image looks directly into the camera, takes a breath, then smiles brightly and speaks with enthusiasm: \"Have you heard? Alibaba Wan 2.5 API is now available on ModelFold!\" Ambient audio: quiet indoor atmosphere, soft natural room tone. Camera: medium close-up, steady framing, natural daylight mood, accurate lip-sync with dialogue.",
  "image_url": "https://file.aiquickdraw.com/custom-page/akr/section-images/1758796480945qb63zxq8.webp",
  "duration": "5",
  "resolution": "1080p"
}'

{
  "model": "wan/2-5-image-to-video",
  "prompt": "The same woman from the reference image looks directly into the camera, takes a breath, then smiles brightly and speaks with enthusiasm: \"Have you heard? Alibaba Wan 2.5 API is now available on ModelFold!\" Ambient audio: quiet indoor atmosphere, soft natural room tone. Camera: medium close-up, steady framing, natural daylight mood, accurate lip-sync with dialogue.",
  "image_url": "https://file.aiquickdraw.com/custom-page/akr/section-images/1758796480945qb63zxq8.webp",
  "duration": "5",
  "resolution": "1080p"
}

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": {}
}