AWS service for building conversational chatbots and voice assistants. Like having the technology behind Alexa available for your own applications.
A bank creates a chatbot using Lex that helps customers check account balances and transfer money.
Amazon Lex, Dialogflow, Azure AI Bot Service, and OCI Digital Assistant all help you build conversational interfaces (chat and/or voice) using intent recognition and entity/slot extraction. Lex is tightly integrated with AWS services (Lambda, Connect, IAM). Dialogflow is commonly paired with Google Contact Center AI and telephony partners. Azure AI Bot Service is typically used with Azure AI Language and Azure OpenAI for NLU and orchestration. OCI Digital Assistant focuses on enterprise virtual assistants and integrations within Oracle’s ecosystem.