Content Moderation provides a 24/7 manual review service, which includes human-machine review and human-only review. The human-machine review service returns automated detection results and can escalate content for manual review based on those results. The human-only review service reviews all submitted content and returns only manual review results.
Prerequisites
- You have enabled the manual review service. After-sales support must enable this service. If the Content Moderation service is not enabled, manual review options are not displayed in the console.
To enable the service, contact our after-sales support by joining the Alibaba Cloud Content Moderation Q&A DingTalk group (ID: 35573806). In your join request, provide your company name and job title, such as Developer, Product Manager, or Reviewer. For example:
XXX Company + Developer.Note The manual review service is a paid feature. For billing details, see Content Moderation Pricing. You have completed the required preparations to use the content moderation API. For more information, see Prepare to use the content moderation API.
You have contacted Alibaba Cloud technical support to discuss the volume, time frame, and criteria for your manual review needs.
(Recommended) Human-machine review procedure
- Log on to the Content Moderation console.
On the page, configure the review result callback URL.
For more information, see Configure message notifications.
Call the appropriate Content Moderation API for your use case, as described below:
Image moderation
Call the synchronous image moderation API. The following diagram shows the workflow.

The API synchronously returns detection results to your business server. Manual review results are sent asynchronously to your configured review result callback URL.
Text moderation
Call the synchronous text moderation API. The following diagram shows the workflow.

The API synchronously returns detection results to your business server. Manual review results are sent asynchronously to your configured review result callback URL.
Video moderation
Call the asynchronous video moderation API. The following diagram shows the workflow.

The API returns detection results to your business server as an asynchronous message. You can also call the result query API to retrieve the results. Manual review results are sent asynchronously to your configured review result callback URL.
The service returns manual review results after the asynchronous video moderation process completes. If you call the stop video moderation API to stop the process before the results are returned, you will not receive the manual review results.
Audio moderation
Call the asynchronous audio moderation API. The following diagram shows the workflow.

The API returns detection results to your business server as an asynchronous message. You can also call the result query API to retrieve the results. Manual review results are sent asynchronously to your configured review result callback URL.
The service returns manual review results after the asynchronous audio moderation process completes. If you call the cancel audio moderation API to cancel the process before the results are returned, you will not receive the manual review results.
Human-only review procedure
Select the appropriate manual review API based on the content type (image, video, audio, or text). In your API call, set the callback URL to receive the manual review results.
Submit your content for manual review and wait for the results before you proceed with your business logic. The following diagram shows the workflow.

For more information about manual review APIs, see manual image review and manual text review.