Amazon Lex now supports LLMs as the primary option for natural language understanding

Published
November 26, 2025
https://aws.amazon.com/about-aws/whats-new/2025/11/lex-llms-primary-natural-language-understanding/

Amazon Lex Updates

Amazon Lex now allows you to use Large Language Models (LLMs) to understand customer intent across voice and chat interactions. This enhances bot capabilities to handle complex utterances, maintain accuracy despite spelling errors, and extract key information from verbose inputs. When customer intent is unclear, bots can ask follow-up questions to fulfill requests accurately.

What to do

Source: AWS release notes




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