Amazon Lex Reviews

User Rating

4.8/5 (Based on 62 Ratings)

Rating Distribution

Excellent
83.9%
Very Good
12.9%
Average
1.6%
Poor
1.6%
Terrible
0%

User Sentiments

Ease of Use, Seamless AWS Integration, Natural Language Processing Capabilities, Voice Recognition

Limited Language Support, Limited Customization Options, Documentation Issues, Limited Third-Party Integrations

Do You Use Amazon Lex?

Write a Review

Review Summary

Amazon Lex is a popular chatbot platform praised for its ease of use and integration with AWS services. Users highlight its ability to build chatbots with both text and voice capabilities, utilizing advanced NLP features. While it's noted for its user-friendly setup, some users express concerns about limited integration with third-party vendors and language support. Despite these limitations, Amazon Lex is considered a valuable tool for automating tasks, streamlining customer interactions, and improving user experiences.

Pros

Easy to build and configure chatbots, both voice and text.
Integrates well with AWS services, including S3 buckets.
Offers powerful NLP capabilities and automation features.

Cons

Integration with nonAWS services is limited.
Pricing can be complex and challenging to understand.

AI-Generated from the text of User Reviews

Did you find this information valuable?

YES NO

Reviews

Dwarkesh B

July 7, 2026 Source: G2.com

Aws Lex Chatbot with native aws integrations

What do you like best about Amazon Lex?Major thing to like about LEX is that it is a chatbot which can support multiple languages, multi turn context, provide session attributes which are helpful for storing information temporarily over turns. Aws lambda provides connectivity with all other aws services such as comprehend, kendra, translate and much more which can be used to create custom business logic and help with creating latest RAG based chatbot.What do you dislike about Amazon Lex?Aws lex is powerfull but learning the service takes lot of time and one has to create a wonderfull detailed project to understand how each every feature of it works which still might be missed due to hard learning curve. One needs to rely entirely on documentation which is not very helpful and the features like dialog code hook over console of lex are quite tricky to master in few months.Debugging every part is still a difficult part as one relies over CloudWatch and lambda print statements.What problems is Amazon Lex solving and how is that benefiting you?Aws lex solves technical problems such as it can scale chatbot servers automatically as its fully managed service, understand human interaction and can answer well with the user defined logic.Its natural language understanding to identify the correct intent is one of the best function and to get the slot value as per the inbuilt or custom ones. It can also connect to various other aws services and take inputs to process them over chat itself.

Manish R

June 29, 2026 Source: G2.com

Enterprise-Ready Conversational AI Service

What do you like best about Amazon Lex?It's easy to integrate with the AWS ecosystem, What do you dislike about Amazon Lex?simple to deploy, UI is very easy to understand, Native AWS App Recommendations to others considering Amazon Lex?Speed up the AWS task, What problems is Amazon Lex solving and how is that benefiting you?Easy on boarding, Lots of AI models at the backend.

Kathiravan S

June 4, 2024 Source: G2.com

Commerical Speech IVR model where you need to feed each and every phrases and also it also supress and not capture the background noice Amazon Lex Pros and Cons

What do you like best about Amazon Lex?Amazon lex provides an option to optimise the legacy Traditional DTMF IVR model to natural language IVR where it includes real time processing understanding the words.It really enhance customer experience from Traditional IVR to Natural language IVR.What do you dislike about Amazon Lex?It did not have Point of presence in India based due to DoT regulations and also It did not provide support to most of indian language example Hindi support is not included in the Natural langagueWhat problems is Amazon Lex solving and how is that benefiting you?It will help to overcome the

Rushikesh D

January 17, 2024 Source: G2.com

"Conversational AI Evolution: Analyzing the Advancements and Applications of Amazon Lex"

What do you like best about Amazon Lex?Amazon Lex is often praised for its ease of integration with other Amazon Web Services (AWS), robust natural language understanding capabilities, and scalability, making it a popular choice for building conversational interfaces and chatbots.What do you dislike about Amazon Lex?Customization options could be more extensive, and there might be a learning curve for those unfamiliar with AWS services. It's always a good idea to evaluate based on specific project requirements and expectations.What problems is Amazon Lex solving and how is that benefiting you?Amazon Lex is solving challenges related to automating customer support, enhancing natural language understanding, and providing scalability for varying user interactions. Its seamless integration with AWS services contributes to a comprehensive solution, reducing development time and improving overall operational efficiency. As a user, these aspects collectively benefit by enabling efficient and context-aware conversational interactions in applications, ultimately enhancing user experiences.

Rakesh R

January 11, 2024 Source: G2.com

Good platform to build chatbots

What do you like best about Amazon Lex?We can directly integrate aws services and other functions like s3 buckets. And good thing is it's supporting for both text and voice, and we can see advanced NLP capabilities.What do you dislike about Amazon Lex?Only intigration, when user wants to intigrate with other vendor , its tightly integrated with AWS onlyWhat problems is Amazon Lex solving and how is that benefiting you?I used to create custom bot and configured some settings, lex is helped to integrate and enable voice applications using natural language

uday t

June 6, 2023 Source: G2.com

"Best ai chat bot"

What do you like best about Amazon Lex?

Best chat bot where we can configure it using code or without code

If we select lambda we need to write some code

Optimal solution for those using amazon connect

What do you dislike about Amazon Lex?

I dont find any flaws till now

It was good compared to q and a chatbot

Where we provide intents in lex

Its better to add features which does not involve coding

What problems is Amazon Lex solving and how is that benefiting you?

Compared to q and a chat bots this is best

We need to integrate with aws lambda and add utterences and intents

Easy to implement and optimal compared to other chatbots

Jaya P

November 29, 2018 Source: G2.com

"Need to open up more"

What do you like best about Amazon Lex?

The programming interface is reallly powerful to dynamically create bots, slots and intents. CLI is another powerful tool which makes the job really easy.

What do you dislike about Amazon Lex?

Intent confidence score is a must have for identifying the right intent. The other feature which is missing is handling fallback intent

What problems is Amazon Lex solving and how is that benefiting you?

We are building a chat bot for fieldforce. This bot is integrated with the backend system has made the job of data retrieval really easy

G2 User in Banking

November 27, 2018 Source: G2.com

"Lex driving change within FI"

What do you like best?

It works really welli within the broader ecosystem.

What do you dislike?

Not being able to front Alexa with Lex.We are attempting to use Lex as a centralized NLP engine to handle our integration, and that has become a challenge due to Amazon's restrictions on only using ALexa's NLP.

What problems are you solving with the product? What benefits have you realized?

We tackle high volume, low value transactions within the FI.

Anonymous User

November 27, 2018 Source: G2.com

"Lex driving change within FI"

What do you like best about Amazon Lex?

It works really welli within the broader ecosystem.

What do you dislike about Amazon Lex?

What problems is Amazon Lex solving and how is that benefiting you?

We tackle high volume, low value transactions within the FI.

Consultant in Information Technology and Services

September 15, 2018 Source: G2.com

"Deep learning technology bot"

What do you like best?

Speech recognition Interfaces. NL algos

What do you dislike?

All features are good. There is no negative feedback

What problems are you solving with the product? What benefits have you realized?

We are using for a retail client to understand the customer feedback and product expectation. Want to build customized products based on real time demand using Amazon Lex as a part of omnichannel strategy. We are getting good feedback after the conversion of speech and text using Lex

Amazon Lex Reviews

User Rating

Rating Distribution

User Sentiments

Do You Use Amazon Lex?

Review Summary

Pros

Cons

Dwarkesh B

Manish R

Kathiravan S

Rushikesh D

Rakesh R

uday t

Jaya P

G2 User in Banking

What do you like best?

What do you dislike?

What problems are you solving with the product? What benefits have you realized?

Anonymous User

Consultant in Information Technology and Services

What do you like best?

What do you dislike?

What problems are you solving with the product? What benefits have you realized?

FTC Disclosure

We understand SaaS better

SaaSworthy helps stakeholders choose the right SaaS platform based on detailed product information, unbiased reviews, SW score and recommendations from the active community.

Buyers

Makers