Vidu Q4 Image To Video

This page is generated from the upstream official OpenAPI documentation. Endpoints, parameters and examples match the official docs; brand and API domain are replaced with ModelFold.

Endpoint

POST /jobs/createTask

Full URL: https://ai.modelfold.online/v1/jobs/createTask

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

Query Task Status

After submitting the task, you can check the progress of the task and obtain the generated results through the unified query endpoint:

• Get Task Details — Learn how to check the task status and obtain the generated results

TIP

In the production environment, it is recommended to use the "callBackUrl" parameter to receive the automatic notification upon completion of the generation, rather than polling the status endpoint.

Related resources

• Market Overview — View all available models
• General API — View account credits and usage

Request Parameters

Body (application/json)

Parameter	Type	Required	Description
model	string	Yes	The model name used for generation. This endpoint must use vidu-q4/image-to-video. Default："vidu-q4/image-to-video"。 Allowed values：vidu-q4/image-to-video。 示例：vidu-q4/image-to-video。
callBackUrl	string	No	The URL to receive generation task completion updates. Optional but recommended for production use. The system POSTs the task status and results to this URL when generation completes. 示例：https://your-domain.com/api/callback。
input	object	Yes	Input parameters for the generation task.
input.prompt	string	No	Text description of the motion and scene. Optional. Up to 20,000 characters.
input.duration	integer	No	Video length in seconds. Integer from 3 to 16. Default：5。 示例：5。
input.resolution	string	No	Output resolution. Default："720p"。 Allowed values：540p / 720p / 1080p / 2k / 4k。 示例：720p。
input.audio	boolean	No	Generate synchronized audio (dialogue and sound effects). Set false for a silent video. Default：true。 示例：true。
input.image_url	string	Yes	First-frame image URL (http/https). JPG, JPEG, PNG or WEBP, up to 50 MB. The video inherits this image's aspect ratio.

Request Example

curl -X POST "https://ai.modelfold.online/v1/jobs/createTask" \
  -H "Authorization: Bearer $MODELFOLD_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "model": "vidu-q4/image-to-video",
  "callBackUrl": "https://your-domain.com/api/callback",
  "input": {
    "image_url": "https://static.aiquickdraw.com/tools/example/vidu-q4-i2v.png",
    "prompt": "The astronaut waves and the camera slowly moves up.",
    "duration": 5,
    "resolution": "720p",
    "audio": true
  }
}'

{
  "model": "vidu-q4/image-to-video",
  "callBackUrl": "https://your-domain.com/api/callback",
  "input": {
    "image_url": "https://static.aiquickdraw.com/tools/example/vidu-q4-i2v.png",
    "prompt": "The astronaut waves and the camera slowly moves up.",
    "duration": 5,
    "resolution": "720p",
    "audio": true
  }
}

Response

200 — Request successful

参数	类型	必填	说明
code	integer	否	Status code of the request. The HTTP status is 200 even when the request fails, so always check this field: 200 means success; any other value means the request failed and msg describes the reason. Common values: 401 invalid or missing API key; 402 insufficient credits; 429 rate limit exceeded; 422 or 500 the request could not be processed (read msg and check your parameters before retrying). 可选值：200 / 400 / 401 / 402 / 404 / 422 / 429 / 455 / 500 / 501 / 505。 示例：200。
msg	string	否	Error message when code != 200 示例：success。
data	object	否	—
data.taskId	string	否	Task ID, can be used with Get Task Details endpoint to query task status 示例：task_abcdef123456。

{
  "code": 200,
  "msg": "success",
  "data": {
    "taskId": "task_abcdef123456"
  }
}

500 — Server error.

参数	类型	必填	说明
code	integer	是	Response status code - 200: Success - Request has been processed successfully - 401: Unauthorized - Authentication credentials are missing or invalid - 402: Insufficient Credits - Account does not have enough credits to perform the operation - 404: Not Found - The requested resource or endpoint does not exist - 408: Timeout - No result has been returned for over 10 minutes. - 422: Validation Error - The request parameters failed validation checks - 429: Rate Limited - Request limit has been exceeded for this resource - 455: Service Unavailable - System is currently undergoing maintenance - 500: Server Error - An unexpected error occurred while processing the request - 501: Generation Failed - Content generation task failed - 505: Feature Disabled - The requested feature is currently disabled
msg	string	是	Response message, error description when failed
data	object	是	—

{
  "code": 500,
  "msg": "Server Error - An unexpected error occurred while processing the request",
  "data": null
}

Callback

videoTaskCompleted

Callback URL: {$request.body#/callBackUrl} (the callBackUrl in the request body).

The system sends this callback when the vidu-q4/image-to-video task succeeds or fails.

Callback body parameters

参数	类型	必填	说明
code	integer	是	Unified callback code: 200 for success, 501 for failure. Allowed values：200 / 501。 示例：200。
msg	string	是	Unified callback message.
data	object	是	—
data.taskId	string	是	The unique task identifier.
data.model	string	是	The model used for the task. Allowed values：vidu-q4/image-to-video。 示例：vidu-q4/image-to-video。
data.state	string	是	Terminal task state. Allowed values：success / fail。 示例：success。
data.param	string	是	JSON string containing the submitted task parameters.
data.resultJson	string,null	否	JSON string containing resultUrls when successful. Present only when state is success.
data.failCode	string,null	否	Failure code. Present only when state is fail.
data.failMsg	string,null	否	Failure reason. Present only when state is fail.
data.costTime	integer	否	Processing time in seconds.
data.completeTime	integer	否	Task completion timestamp.
data.createTime	integer	否	Task creation timestamp.

{
  "code": 200,
  "msg": "",
  "data": {
    "taskId": "",
    "model": "vidu-q4/image-to-video",
    "state": "success",
    "param": "",
    "costTime": 0,
    "completeTime": 0,
    "createTime": 0
  }
}