Enterprise-grade conversational AI service that enables developers to build sophisticated chatbots and voice interfaces with the same technology powering Alexa, offering seamless AWS integration and pay-per-use pricing.
Last updated Feb 21, 2026 by AI Enrichment
Leading cloud-based conversational AI platform within AWS ecosystem
Amazon Lex is a fully managed artificial intelligence service from Amazon Web Services (AWS) that enables developers to build conversational interfaces into applications using voice and text. Launched in 2017, it leverages the same deep learning technologies that power Amazon Alexa to provide advanced natural language understanding (NLU) and automatic speech recognition (ASR) capabilities. While Amazon Lex is not strictly an AdTech product, it serves the broader digital ecosystem including marketing and customer engagement applications. The service allows businesses to create chatbots and virtual assistants for customer service, information retrieval, and interactive voice response systems. It integrates seamlessly with other AWS services and can be deployed across multiple platforms including mobile devices, web applications, and contact centers. Amazon Lex competes in the conversational AI and chatbot platform market, offering pay-as-you-go pricing and enterprise-grade scalability. It is part of Amazon's broader cloud services portfolio and benefits from AWS's global infrastructure and security standards.
Enhanced version with improved APIs, streaming conversation support, and multi-language capabilities
Tool for creating conversational flows and intents
Integration with Amazon Connect for intelligent contact center solutions