Amazon Lex

Build conversational interfaces using the same deep learning tech (ASR and NLU) that powers Amazon Alexa.

Lex handles the heavy lifting of speech-to-text and intent recognition: developers use it to deploy chatbots across Slack, Facebook Messenger, and Amazon Connect. It utilizes Automatic Speech Recognition (ASR) for audio and Natural Language Understanding (NLU) for text. The V2 console streamlines bot building (streaming APIs, multi-language support) while AWS Lambda handles the backend logic. Whether it is automating a 1-800 customer service line or building a voice-activated app, Lex scales automatically without manual infrastructure management.

https://aws.amazon.com/lex/