Amazon Comprehend

A fully managed Natural Language Processing (NLP) service that uses machine learning to uncover key insights from unstructured text.

Amazon Comprehend is a continuously trained AI service that applies NLP and machine learning to extract critical insights from documents like customer emails, support tickets, and legal briefs. The service offers a robust API suite for immediate analysis: it automatically identifies entities (people, places), key phrases, and language, and determines sentiment (positive, negative, mixed) with high confidence. For domain-specific needs, use AutoML to build Custom Classification and Custom Entity Recognition models—for example, to identify a specific policy number like 456-YQT—all without requiring deep ML expertise. Furthermore, it includes essential capabilities to detect and redact Personally Identifiable Information (PII), ensuring data protection and compliance.

https://aws.amazon.com/comprehend/