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Seedream4.5 - Edit ​

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.

Image editing by Seedream4.5

The output format is not fixed: results may be PNG or JPEG.

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.

Request Parameters ​

Body (application/json) ​

ParameterTypeRequiredDescription
modelstringYesThe model name to use for generation. Required field.
- Must be seedream/4.5-edit for this endpoint Default："seedream/4.5-edit"。 Allowed values：seedream/4.5-edit。 示例：seedream/4.5-edit。
callBackUrlstringNoThe 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。
inputobjectNoInput parameters for the generation task
  input.promptstringYesA text description of the image you want to generate (Max length: 3000 characters) 示例：Keep the model's pose and the flowing shape of the liquid dress unchanged. Change the clothing material from silver metal to completely transparent clear water (or glass). Through the liquid water, the model's skin details are visible. Lighting changes from reflection to refraction.。
  input.image_urlsarray&lt;string&gt;YesUpload an image file to use as input for the API (File URL after upload, not file content; Accepted types: image/jpeg, image/png, image/webp; Max size: 30.0MB)
  input.aspect_ratiostringYesRequired. Width-height ratio of the image, determining its visual form. Allowed values：1:1 / 4:3 / 3:4 / 16:9 / 9:16 / 2:3 / 3:2 / 21:9。 示例：1:1。
  input.qualitystringYesRequired. Basic outputs 2K images, while High outputs 4K images. Allowed values：basic / high。 示例：basic。
  input.nsfw_checkerbooleanNoDefaults 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": "seedream/4.5-edit",
  "callBackUrl": "https://your-domain.com/api/callback",
  "input": {
    "prompt": "Keep the model'\''s pose and the flowing shape of the liquid dress unchanged. Change the clothing material from silver metal to completely transparent clear water (or glass). Through the liquid water, the model'\''s skin details are visible. Lighting changes from reflection to refraction.",
    "image_urls": [
      "https://static.aiquickdraw.com/tools/example/1764851484363_ScV1s2aq.webp"
    ],
    "aspect_ratio": "1:1",
    "quality": "basic",
    "nsfw_checker": true
  }
}'
json
{
  "model": "seedream/4.5-edit",
  "callBackUrl": "https://your-domain.com/api/callback",
  "input": {
    "prompt": "Keep the model's pose and the flowing shape of the liquid dress unchanged. Change the clothing material from silver metal to completely transparent clear water (or glass). Through the liquid water, the model's skin details are visible. Lighting changes from reflection to refraction.",
    "image_urls": [
      "https://static.aiquickdraw.com/tools/example/1764851484363_ScV1s2aq.webp"
    ],
    "aspect_ratio": "1:1",
    "quality": "basic",
    "nsfw_checker": true
  }
}

Response ​

200 — Request successful ​

json
{
  "code": 200,
  "msg": "success",
  "data": {
    "taskId": "task_seedream_1765172101886"
  }
}

500 — Server error. ​

参数类型必填说明
codeinteger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
msgstring是Response message, error description when failed
dataobject是—
json
{
  "code": 500,
  "msg": "Server Error - An unexpected error occurred while processing the request",
  "data": null
}

Callback ​

onImageGenerated ​

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

Sent when the task succeeds or fails.

Callback body parameters

参数类型必填说明
codeinteger否200: success. 501: failure; see data.failCode and data.failMsg. Allowed values：200 / 501。 示例：200。
msgstring否Status message 示例：Playground task completed successfully.。
dataobject否—
  data.completeTimeinteger否Task completion time, represented as a Unix timestamp in milliseconds 示例：1786415673000。
  data.costTimeinteger否Processing time in seconds. Present on both success and failure callbacks. 示例：29。
  data.createTimeinteger否Task creation time, represented as a Unix timestamp in milliseconds 示例：1786415638000。
  data.creditsConsumednumber否Credits consumed by the task; 0 for failed tasks. 示例：6.5。
  data.modelstring否Image editing model used for the task 示例：seedream/4.5-edit。
  data.paramstring否Parameters submitted when creating the task, in JSON string format 示例：{"input":"{\"aspect_ratio\":\"1:1\",\"image_urls\":[\"https://static.aiquickdraw.com/tools/example/1764851484363_ScV1s2aq.webp\"],\"prompt\":\"Keep the model's pose and the flowing shape of the liquid dress unchanged. Changethe clothing material from silver metal to completely transparent clear water (or glass). Through the liquid water, the model's skin detailsare visible. Lighting changes from reflection to refraction.\",\"nsfw_checker\":true,\"quality\":\"basic\"}","callBackUrl":"https://your-domain.com/api/callback","model":"seedream/4.5-edit"}。
  data.resultJsonstring否Image generation result in JSON string format. resultUrls contains the list of generated image URLs. Present only when state is success. 示例：{"resultUrls":["https://tempfile.aiquickdraw.com/p/8f4544cc6a73916aebae00b285a2e55a_1_1786415672_9284.jpg"]}。
  data.statestring否Task status Allowed values：success / fail。 示例：success。
  data.taskIdstring否Task ID 示例：8f4544cc6a73916aebae00b285a2e55a。
  data.updateTimeinteger否Use completeTime as the completion time; updateTime may equal createTime. 示例：1786415673000。
  data.failCodestring否Failure code, a numeric string such as "400" or "500". Present only when state is fail. 示例：500。
  data.failMsgstring否Failure reason. Present only when state is fail. 示例：&lt;error detail&gt;。

Success

json
{
  "code": 200,
  "msg": "Playground task completed successfully.",
  "data": {
    "taskId": "8f4544cc6a73916aebae00b285a2e55a",
    "model": "seedream/4.5-edit",
    "state": "success",
    "param": "{\"input\":\"{\\\"aspect_ratio\\\":\\\"1:1\\\",\\\"image_urls\\\":[\\\"https://static.aiquickdraw.com/tools/example/1764851484363_ScV1s2aq.webp\\\"],\\\"prompt\\\":\\\"Keep the model's pose and the flowing shape of the liquid dress unchanged. Changethe clothing material from silver metal to completely transparent clear water (or glass). Through the liquid water, the model's skin detailsare visible. Lighting changes from reflection to refraction.\\\",\\\"nsfw_checker\\\":true,\\\"quality\\\":\\\"basic\\\"}\",\"callBackUrl\":\"https://your-domain.com/api/callback\",\"model\":\"seedream/4.5-edit\"}",
    "resultJson": "{\"resultUrls\":[\"https://tempfile.aiquickdraw.com/p/8f4544cc6a73916aebae00b285a2e55a_1_1786415672_9284.jpg\"]}",
    "completeTime": 1786415673000,
    "createTime": 1786415638000,
    "costTime": 29,
    "creditsConsumed": 6.5,
    "updateTime": 1786415673000
  }
}

Failure

json
{
  "code": 501,
  "msg": "Playground task failed.",
  "data": {
    "taskId": "8f4544cc6a73916aebae00b285a2e55a",
    "model": "seedream/4.5-edit",
    "state": "fail",
    "param": "{\"input\":\"{\\\"aspect_ratio\\\":\\\"1:1\\\",\\\"image_urls\\\":[\\\"https://static.aiquickdraw.com/tools/example/1764851484363_ScV1s2aq.webp\\\"],\\\"prompt\\\":\\\"Keep the model's pose and the flowing shape of the liquid dress unchanged. Changethe clothing material from silver metal to completely transparent clear water (or glass). Through the liquid water, the model's skin detailsare visible. Lighting changes from reflection to refraction.\\\",\\\"nsfw_checker\\\":true,\\\"quality\\\":\\\"basic\\\"}\",\"callBackUrl\":\"https://your-domain.com/api/callback\",\"model\":\"seedream/4.5-edit\"}",
    "failCode": "500",
    "failMsg": "<error detail>",
    "completeTime": 1786415673000,
    "createTime": 1786415638000,
    "costTime": 29,
    "creditsConsumed": 0,
    "updateTime": 1786415673000
  }
}

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