Amazon Lex is a service for building conversational interfaces into any application using voice and text. Amazon Lex provides the advanced deep learning functionalities of automatic speech recognition (ASR) for converting speech to text, and natural language understanding (NLU) to recognize the intent of the text, to enable you to build applications with highly engaging user experiences and lifelike conversational interactions. With Amazon Lex, the same deep learning technologies that power Amazon Alexa are now available to any developer, enabling you to quickly and easily build sophisticated, natural language, conversational bots (“chatbots”).
Speech recognition and natural language understanding are some of the most challenging problems to solve in computer science, requiring sophisticated deep learning algorithms to be trained on massive amounts of data and infrastructure. Amazon Lex democratizes these deep learning technologies by putting the power of Amazon Alexa within reach of all developers. Harnessing these technologies, Amazon Lex enables you to define entirely new categories of products made possible through conversational interfaces.
Watson Assistant is IBM's AI product that lets you build, train, and deploy conversational interactions into any application, device, or channel. Most chatbots try to mimic human interactions, which can frustrate users when a misunderstanding arises. Watson Assistant is more.
Amazon Lex is ranked 1st in Chatbot Development Platforms with 1 review while IBM Watson Assistant is ranked 2nd in Chatbot Development Platforms. Amazon Lex is rated 9.0, while IBM Watson Assistant is rated 0.0. The top reviewer of Amazon Lex writes "Extremely stable with great speech recognition and helpful technical support". On the other hand, Amazon Lex is most compared with Google Dialogflow, Rasa and Microsoft Azure Language Understanding, whereas IBM Watson Assistant is most compared with Google Dialogflow, Rasa, Microsoft Azure Language Understanding and ServiceNow Virtual Agent.
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