Open main menu

Amazon Lex is a service for building conversational interfaces into any application using voice and text[1]. It powers the Amazon Alexa virtual assistant. In April 2017, the platform was released to the developer community, and suggested that it could be used for conversational interfaces (chatbots or otherwise) including Web, mobile apps, robots, toys, drones, and more. Amazon already had launched Alexa Voice Services, which developers can use to integrate Alexa into their own devices, like smart speakers, alarm clocks, etc., however Lex will not require that end users interact with the Alexa assistant per se, but rather any type of assistant or interface.[2][3][4] As of February 2018, users can now define a response for Amazon Lex chatbots directly from the AWS management console.[5]


  1. ^ "Natural Language Understanding for Amazon Alexa with Zornitsa Kozareva - This Week in Machine Learning & AI Podcast". This Week in Machine Learning & AI Podcast. 2017-06-29. Retrieved 2017-07-04.
  2. ^ Perez, Sarah. "Amazon Lex, the technology behind Alexa, opens up to developers | TechCrunch". Retrieved 2017-07-04.
  3. ^ "Amazon Lex – Build Conversation Bots". Amazon Web Services, Inc. Retrieved 2017-07-04.
  4. ^ Dignan, Larry. "AWS opens up Amazon Lex AI platform to its customers | ZDNet". ZDNet. Retrieved 2017-07-04.
  5. ^ "Announcing Responses Capability in Amazon Lex and SSML Support in Text Response". Amazon Web Services, Inc. Retrieved 2018-02-15.