Amazon Lex

Lex is an artificial intelligence engine that delivers speech recognition and natural language comprehension capabilities. It's most prominently known for being "inside" the Amazon's Alexa (A-lex-a) personal assistant that brings to life the Echo line of home-automation products.

With that voice and text recognition service now generally available, developers can build applications that offer sophisticated, conversational interfaces and launch a new breed of ever-more intelligent chat bots.