A user can also pair Comprehend with other services, such as AWS Lambda and AWS Glue.

A user accesses Amazon Comprehend from the AWS Management Console. The service accesses data from social media posts, emails and other text documents stored in Amazon S3. Once the user calls a Comprehend API, the service will analyze text for key phrases and relationships. Comprehend will return confidence scores for each user request that indicate how confident the service is that its results are accurate; the higher the score, the more confident the service is.

Comprehend can process single or batch text analysis requests. The service will automatically organize documents based on relevant terms and topics. A user will retain ownership over any documents that Comprehend accesses, but Amazon may store and use the text inputs to better train and develop future models. This excludes any personally identifiable information.