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AI Customer Support Tools

Amazon Lex

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Introduction
Fully managed AWS service for building, testing, and deploying AI chatbots and conversational interfaces using voice and text.
Added on
11/1/2026
Pricing
Freemium
Amazon Lex screenshot
Amazon Lex website preview

PRODUCT OVERVIEW

What is Amazon Lex?

Amazon Lex is a fully managed AWS cloud service for building conversational interfaces into any application using voice and text. It provides building, testing, and deployment tools to create AI chatbots and chat interfaces that let users interact with applications through natural language, such as checking flight details, making bookings, or requesting changes. Documented uses include self-service customer support, human resource management, search, sales inquiries, social media messaging, and interactive voice response on phone calls. Bots can follow a request-and-response model or a continuous streaming conversation that keeps listening and can respond proactively. Pricing is pay-as-you-go with no upfront commitment or minimum fee, and new AWS customers can use a free tier for one year with monthly request limits.

How to use Amazon Lex

  1. 1

    Create an AWS account

    Sign up for AWS and open the Amazon Lex console to begin building a bot.

  2. 2

    Design your bot

    Define intents and conversation flows for the voice or text interactions your application needs.

  3. 3

    Test and deploy

    Use the provided testing tools, then deploy the bot into your application, messaging channels, or phone IVR.

Amazon Lex Features

Build AI chatbots and chat interfaces with voice and text

Fully managed AWS cloud service

Building, testing, and deployment tools

Request-and-response or continuous streaming conversations

Proactive bot responses in streaming mode

Deploy across applications, messaging apps, and phone IVR

Amazon Lex Use Cases

  • Self-service customer support

  • Human resource management

  • Search and sales inquiries

  • Social media messaging bots

  • Interactive voice response on phone calls

Amazon Lex FAQs

Yes. Amazon Lex is a fully managed AWS service with building, testing, and deployment tools for creating AI chatbots and chat interfaces.

It lets users interact with your application through natural language, for example asking for flight details, making a booking, or requesting changes.

Documented uses include self-service customer support, human resource management, search, sales inquiries, social media messaging, and phone IVR.

New AWS customers can use a free tier for one year, processing up to 10,000 text requests and 5,000 speech requests per month.

It is pay-as-you-go with no upfront commitment or minimum fee, and pricing depends on whether you use request-and-response or streaming conversations.

In request-and-response, each user input is a separate API call; in streaming, multiple turns are processed in one streaming call and the bot can respond proactively.

Yes. Documented uses include interactive voice response (IVR) on phone calls.

Yes. The automated chatbot designer analyzes conversation transcripts to surface a bot design, charged at $0.50 per minute of training time.

Amazon Lex Official Information

Company
Amazon Web Services
Website
https://aws.amazon.com/lex
Documentation
https://aws.amazon.com/lex/getting-started/
Contact
https://aws.amazon.com/contact-us/

Amazon Lex Pricing

Freemium

Pay-as-you-go with no upfront commitment or minimum fee. New AWS customers can use a free tier for one year with monthly request limits; pricing varies by interaction model and usage.

Free Tier

$0USD / per month for the first year

Free usage for new AWS customers during the first year, limited to monthly text and speech request thresholds.

  • Up to 10,000 text requests per month
  • Up to 5,000 speech requests per month
  • Available for the first year from start date

Pay-as-you-go

USD / usage-based

Usage-based pricing for request-and-response or streaming conversations, billed only for what you use with no upfront commitment.

  • No upfront commitment or minimum fee
  • Pricing based on interaction model
  • Billed per request or streaming conversation usage

View official pricing ↗

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