Bytedance V1 Pro Fast 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 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 bytedance/v1-pro-fast-image-to-video for this endpoint Default："bytedance/v1-pro-fast-image-to-video"。 Allowed values：bytedance/v1-pro-fast-image-to-video。 Example：bytedance/v1-pro-fast-image-to-video。
prompt	string	Yes	Prompt required by the ModelFold gateway; at most 2000 characters. The text prompt used to generate the video (Max length: 10000 characters) maxLength: 2000. Example：A cinematic close-up sequence of a single elegant ceramic coffee cup with saucer on a rustic wooden table near a sunlit window, hot rich espresso poured in a thin golden stream from above, gradually filling the cup in distinct stages: empty with faint steam, 1/4 filled with dark crema, half-filled with swirling coffee and rising steam, 3/4 filled nearing the rim, perfectly full just below overflow with glossy surface and soft bokeh highlights; ultra-realistic, warm golden-hour light, shallow depth of field, photorealism, detailed textures, subtle steam wisps, serene inviting atmosphere --ar 16:9 --q 2 --style raw。
image_url	string	Yes	The URL of the image used to generate video (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/1762340693669m6sey187.webp。
resolution	string	No	Output resolution: 720p or 1080p. Default："720p"。 Allowed values：720p / 1080p。 Example：720p。
duration	string	No	Duration of the video in seconds Default："5"。 Allowed values：5 / 10。 Example：5。
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": "bytedance/v1-pro-fast-image-to-video",
  "prompt": "A cinematic close-up sequence of a single elegant ceramic coffee cup with saucer on a rustic wooden table near a sunlit window, hot rich espresso poured in a thin golden stream from above, gradually filling the cup in distinct stages: empty with faint steam, 1/4 filled with dark crema, half-filled with swirling coffee and rising steam, 3/4 filled nearing the rim, perfectly full just below overflow with glossy surface and soft bokeh highlights; ultra-realistic, warm golden-hour light, shallow depth of field, photorealism, detailed textures, subtle steam wisps, serene inviting atmosphere --ar 16:9 --q 2 --style raw",
  "image_url": "https://file.aiquickdraw.com/custom-page/akr/section-images/1762340693669m6sey187.webp",
  "resolution": "720p",
  "duration": "5"
}'

{
  "model": "bytedance/v1-pro-fast-image-to-video",
  "prompt": "A cinematic close-up sequence of a single elegant ceramic coffee cup with saucer on a rustic wooden table near a sunlit window, hot rich espresso poured in a thin golden stream from above, gradually filling the cup in distinct stages: empty with faint steam, 1/4 filled with dark crema, half-filled with swirling coffee and rising steam, 3/4 filled nearing the rim, perfectly full just below overflow with glossy surface and soft bokeh highlights; ultra-realistic, warm golden-hour light, shallow depth of field, photorealism, detailed textures, subtle steam wisps, serene inviting atmosphere --ar 16:9 --q 2 --style raw",
  "image_url": "https://file.aiquickdraw.com/custom-page/akr/section-images/1762340693669m6sey187.webp",
  "resolution": "720p",
  "duration": "5"
}

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": {}
}