Microsoft Luis is an AI-powered natural language processing (NLP) service that enables developers to create sophisticated and accurate spoken and text-based applications. With Microsoft Luis, developers can quickly create powerful language-understanding tools that can be used to build virtual assistants, chatbots, and more. It also provides a wide range of pre-built language-understanding models which can be used to create applications that understand natural language and respond accordingly. The service is designed to be easy to use and integrate with existing applications, and its intuitive user interface allows developers to quickly create, train, and deploy models. Additionally, its powerful analytics tools allow developers to understand and optimize the performance of their applications. Microsoft Luis is the ideal choice for anyone looking to create natural language processing applications quickly and efficiently.