Amazon Lex is a service for building

conversational interface A conversational user interface (CUI) is a user interface for computers that emulates a conversation with a real human. Historically, computers have relied on text-based user interfaces and graphical user interfaces (GUIs) (such as the user pressin ...

s into any application using voice and text. It powers the

Amazon Alexa Amazon Alexa, also known simply as Alexa, is a virtual assistant technology largely based on a Polish speech synthesiser named Ivona, bought by Amazon in 2013. It was first used in the Amazon Echo smart speaker and the Echo Dot, Echo Studio and ...

virtual assistant An intelligent virtual assistant (IVA) or intelligent personal assistant (IPA) is a software agent that can perform tasks or services for an individual based on commands or questions. The term "chatbot" is sometimes used to refer to virtual ...

. In April 2017, the platform was released to the developer community, and suggested that it could be used for conversational interfaces (

chatbots A chatbot or chatterbot is a software application used to conduct an on-line chat conversation via text or text-to-speech, in lieu of providing direct contact with a live human agent. Designed to convincingly simulate the way a human would beha ...

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 A smart speaker is a type of loudspeaker and voice command device with an integrated virtual assistant that offers interactive actions and hands-free activation with the help of one "hot word" (or several "hot words"). Some smart speakers can a ...

, 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. As of February 2018, users can now define a response for Amazon Lex chatbots directly from the AWS management console.

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* {{Software-stub Natural language processing software Amazon (company) Software developer communities