Amazon Comprehend vs IBM Watson: What are the differences?
Amazon Comprehend: Discover insights and relationships in text. Amazon Comprehend is a natural language processing (NLP) service that uses machine learning to discover insights from text. Amazon Comprehend provides Keyphrase Extraction, Sentiment Analysis, Entity Recognition, Topic Modeling, and Language Detection APIs so you can easily integrate natural language processing into your applications; IBM Watson: A question-answering computer system capable of answering questions posed in natural language. It combines artificial intelligence (AI) and sophisticated analytical software for optimal performance as a "question answering" machine.
Amazon Comprehend can be classified as a tool in the "NLP / Sentiment Analysis" category, while IBM Watson is grouped under "Chatbot Platforms & Tools".