Amazon Lex is a service for building conversational interfaces into any application using voice and text. With Amazon Lex, you can quickly and easily build conversational bots (chatbots), virtual agents, and interactive voice response (IVR) systems. Amazon Lex leverages Generative AI to accelerate bot building by automatically generating a bot from a user's prompt. Simply provide a description in natural language to generate a starting point which can be further refined.

Amazon Lex's new Descriptive Bot Builder uses foundation models (FMs) from Amazon Bedrock to quickly create a fully functional bot in minutes. Developers simply describe the bot's intended tasks and queries in natural language. Lex then generates sample intents, slots, and utterances to build the bot. For example, a developer could explain that the bot should handle customer food orders by capturing menu items, quantities, and sizes. It should also check order status and cancel orders. Lex would then create an initial bot to fit those parameters for a developer to review and further customize. To use Descriptive Bot Builder, sign up for Amazon Bedrock and log into the Lex Console. Click “Create Bot” and select the option for “Generative AI - Descriptive Bot Builder.” Descriptive Bot Builder is available in IAD and PDX regions for Amazon Lex V2. This feature is only available for English speaking locales to start. To learn more, please see the documentation for Descriptive Bot Builder.