Amazon Lex is an artificial intelligence software designed to help businesses build conversational interfaces using natural language processing (NLP) and automatic speech recognition (ASR). The platform enables developers to create chatbots, virtual assistants, and voice-enabled applications that can understand and respond to user input in real-time. Amazon Lex integrates seamlessly with other AWS services, such as AWS Lambda and Amazon Polly, allowing businesses to automate tasks, provide customer support, and deliver personalized experiences. With its scalable infrastructure, multi-language support, and machine learning capabilities, Amazon Lex helps businesses create sophisticated AI-driven interactions that improve customer engagement and drive business outcomes.