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  3. ›Amazon Lex

Amazon Lex

Build voice and text chatbots

Machine Learning•Official page ↗

What's new 2

1–2 of 2

  1. Amazon Lex launches improved speech recognition models for English

    Amazon Lex now offers a neural automatic speech recognition (ASR) model for English that delivers improved recognition accuracy for your voice bots.

    Amazon Lex•Feature•Jan 13, 2026

  2. Amazon Lex launches configurable voice activity detection sensitivity

    Amazon Lex now provides three VAD sensitivity levels that can be configured for each bot locale: Default, High, and Maximum. The Default setting is suitable for most environments with typical background noise levels.

    Amazon Lex•Feature•Jan 12, 2026