Wan 2.6 - Video 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.

Transform existing videos with new prompts using Wan's advanced AI model

Overview

Generates a new video featuring the subject of the reference video(s); the scene is described by your prompt. The output includes generated audio.

File Upload Requirements

Before using this API, you need to upload your video files:

Step 1: Upload Video

Use the File Upload API to upload your source video.

File Upload API - Learn how to upload videos and get file URLs

Step 2: Get File URL

After upload, you'll receive a file URL that you can use in the video_urls parameter.

WARNING

Supported formats: MP4, QuickTime, Matroska
Maximum file size: 10MB
Maximum 3 video URLs per request
Video content should be appropriate and follow usage guidelines

Usage Examples

TIP

Use descriptive prompts to specify how you want the video to change
Experiment with different prompt styles to achieve desired results

Query Task Status

After submitting a task, use the unified query endpoint to check progress and retrieve results:

Get Task Details — Learn how to query task status and retrieve generation results

TIP

For production use, we recommend using the callBackUrl parameter to receive automatic notifications when generation completes, rather than polling the status endpoint.

Market Overview — Explore all available models
Common API — Check credits and account usage

Request Parameters

Body (application/json)

Parameter	Type	Required	Description
`model`	`string`	Yes	The model name to use for generation. Required field. - Must be `wan/2-6-video-to-video` for this endpoint Default：`"wan/2-6-video-to-video"`。 Allowed values：`wan/2-6-video-to-video`。示例：`wan/2-6-video-to-video`。
`callBackUrl`	`string`	No	The URL to receive generation task completion updates. Optional but recommended for production use. - System will POST task status and results to this URL when generation completes - Callback includes generated content URLs and task information - Your callback endpoint should accept POST requests with JSON payload containing results - Alternatively, use the Get Task Details endpoint to poll task status - To ensure callback security, see Webhook Verification Guide for signature verification implementation 示例：`https://your-domain.com/api/callback`。
`input`	`object`	No	Input parameters for the generation task
`input.prompt`	`string`	Yes	Text prompts for video generation. Supports both Chinese and English, with a minimum of 2 characters and a maximum of 5,000 characters. (Max length: 5000 characters) 示例：`The video drinks milk tea while doing some improvised dance moves to the music.`。
`input.video_urls`	`array<string>`	Yes	Reference video URLs. (File URL after upload, not file content; Accepted types: video/mp4, video/quicktime, video/x-matroska; Max size: 10.0MB)
`input.duration`	`string`	No	The duration of the generated video in seconds Default：`"5"`。 Allowed values：`5` / `10`。示例：`5`。
`input.resolution`	`string`	No	Output resolution: 720p or 1080p. Set this field explicitly. Allowed values：`720p` / `1080p`。示例：`1080p`。
`input.multi_shots`	`boolean`	No	The multi shots parameter controls the shot composition style during AI video generation, determining whether the generated video is a single continuous shot or multiple shots with transitions. Default：`false`。示例：`false`。
`input.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

bash

curl -X POST "https://ai.modelfold.online/v1/jobs/createTask" \
  -H "Authorization: Bearer $MODELFOLD_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "model": "wan/2-6-video-to-video",
  "callBackUrl": "https://your-domain.com/api/callback",
  "input": {
    "prompt": "The video drinks milk tea while doing some improvised dance moves to the music.",
    "video_urls": [
      "https://static.aiquickdraw.com/tools/example/1765957777782_cNJpvhRx.mp4"
    ],
    "duration": "5",
    "resolution": "1080p",
    "multi_shots": false,
    "nsfw_checker": false
  }
}'

json

{
  "model": "wan/2-6-video-to-video",
  "callBackUrl": "https://your-domain.com/api/callback",
  "input": {
    "prompt": "The video drinks milk tea while doing some improvised dance moves to the music.",
    "video_urls": [
      "https://static.aiquickdraw.com/tools/example/1765957777782_cNJpvhRx.mp4"
    ],
    "duration": "5",
    "resolution": "1080p",
    "multi_shots": false,
    "nsfw_checker": false
  }
}

Response

200 — Request successful

json

{
  "code": 200,
  "msg": "success",
  "data": {
    "taskId": "task_wan_1765967743009"
  }
}

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	—

json

{
  "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 wan/2-6-video-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. Allowed values：`Playground task completed successfully.` / `Playground task failed.`。示例：`Playground task completed successfully.`。
`data`	`object`	是	—
`data.taskId`	`string`	是	The unique task identifier.
`data.model`	`string`	是	The model used for the task. Allowed values：`wan/2-6-video-to-video`。示例：`wan/2-6-video-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`	否	JSON string containing resultUrls, firstFrameUrl, lastFrameUrl, or resultObject when successful. Present only when state is success.
`data.failCode`	`string`	否	Failure code, a numeric string such as "400" or "500". Present only when state is fail.
`data.failMsg`	`string`	否	Failure reason. Present only when state is fail.
`data.costTime`	`integer`	否	Processing time in seconds. Present on both success and failure callbacks.
`data.completeTime`	`integer`	否	Task completion timestamp.
`data.createTime`	`integer`	否	Task creation timestamp.
`data.updateTime`	`integer`	否	Use completeTime as the completion time; updateTime may equal createTime.
`data.creditsConsumed`	`number`	否	Credits consumed by the task; 0 for failed tasks.

Task completed successfully

json

{
  "code": 200,
  "msg": "Playground task completed successfully.",
  "data": {
    "taskId": "task_example_video_webhook_001",
    "model": "wan/2-6-video-to-video",
    "state": "success",
    "param": "{\"input\":\"{\\\"prompt\\\":\\\"The video drinks milk tea while doing some improvised dance moves to the music.\\\",\\\"video_urls\\\":[\\\"https://example.com/input-video.mp4\\\"],\\\"duration\\\":\\\"5\\\",\\\"resolution\\\":\\\"1080p\\\",\\\"multi_shots\\\":false,\\\"nsfw_checker\\\":false}\",\"callBackUrl\":\"https://example.com/callback\",\"model\":\"wan/2-6-video-to-video\"}",
    "resultJson": "{\"resultUrls\":[\"https://example.com/generated-video.mp4\"]}",
    "costTime": 12,
    "completeTime": 1234567890,
    "createTime": 1234560000,
    "updateTime": 1234567890,
    "creditsConsumed": 1.23
  }
}

Task failed

json

{
  "code": 501,
  "msg": "Playground task failed.",
  "data": {
    "taskId": "task_example_video_webhook_001",
    "model": "wan/2-6-video-to-video",
    "state": "fail",
    "param": "{\"input\":\"{\\\"prompt\\\":\\\"The video drinks milk tea while doing some improvised dance moves to the music.\\\",\\\"video_urls\\\":[\\\"https://example.com/input-video.mp4\\\"],\\\"duration\\\":\\\"5\\\",\\\"resolution\\\":\\\"1080p\\\",\\\"multi_shots\\\":false,\\\"nsfw_checker\\\":false}\",\"callBackUrl\":\"https://example.com/callback\",\"model\":\"wan/2-6-video-to-video\"}",
    "failCode": "400",
    "failMsg": "<error detail>",
    "costTime": 12,
    "creditsConsumed": 0
  }
}

Wan 2.6 - Video to Video ​

Endpoint ​

Overview ​

File Upload Requirements ​

Step 1: Upload Video ​

Step 2: Get File URL ​

Usage Examples ​

Query Task Status ​

Related Resources ​

Request Parameters ​

Body (application/json) ​

Request Example ​

Response ​

200 — Request successful ​

500 — Server error. ​

Callback ​

videoTaskCompleted ​

Wan 2.6 - Video to Video

Endpoint

Overview

File Upload Requirements

Step 1: Upload Video

Step 2: Get File URL

Usage Examples

Query Task Status

Related Resources

Request Parameters

Body (application/json)

Request Example

Response

200 — Request successful

500 — Server error.

Callback

videoTaskCompleted