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Amazon Lex

Amazon Lex


What is Amazon Lex?

AWS provides Amazon Lex, a chatbot building technology.

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Recent Reviews
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Request and Response


Per Speech Request

Stream Conversation


Per Speech Interval

Entry-level set up fee?

  • No setup fee


  • Free Trial
  • Free/Freemium Version
  • Premium Consulting/Integration Services
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Product Details

What is Amazon Lex?

Amazon Lex Technical Details

Deployment TypesSoftware as a Service (SaaS), Cloud, or Web-Based
Operating SystemsUnspecified
Mobile ApplicationNo
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Reviews and Ratings


Attribute Ratings


(1-1 of 1)
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Score 8 out of 10
Vetted Review
Verified User
We use Amazon Lex to build support chatbots for supporting our customers. Amazon Lex provides excellent APIs to quickly develop and deploy conversational AI and chatbots. We have also been using Amazon Lex to seamlessly automate a lot of simple tasks in our complex support workflows. Amazon Lex has been fundamental in building interactive support assistants for some of our customers.
  • Easy to develop and deploy chatbots
  • Fully managed, so no need to worry about infrastructure management
  • Integrates with other AWS services for data related tasks
  • Cost effective
  • Monitoring performance with AWS services is extremely easy and convenient
  • API support needs improvement
  • Few languages which we needed were not supported like Portuguese
  • Sometimes the confidence scores are not accurate
  • Complex web integration
If you wish to quickly deploy multilingual chatbots without having to worry about infrastructure and model training, go for Amazon Lex. It is one of the best general-purpose conversational AI solutions in the market. The cherry on the cake is that it also seamlessly integrates with other AWS services, so you would be good there. Performance monitoring is very easy with AWS. It has support for both text and integration. If you are not a pro-NLP expert, Amazon Lex will make your job really easy.
  • Support satisfaction has increased
  • Time to resolve customer concerns has seen a major improvement
  • Amazon Lex can quickly automate repetitive simple tasks for us
  • Our organization has built NLP capability without having to hire language experts/linguists
  • Since the integration with AWS services is natively supported, our existing DevOps team can manage our Amazon Lex deployment
Community support for Amazon Lex is good. Also, since it is an AWS service, the support has a similar standard as other AWS services. We have had a couple of instances of our bots weren't able to interact with our web apps. We reached out to the support team, and they were able to resolve our issue in no time. The documentation from the Amazon Lex team also makes creating chatbots a breeze.
Easy to deploy and very easy to integrate with other AWS services. Automating simple tasks is also very easy with Amazon Lex. We never had NLP experts in our team, but we were still able to deploy chatbots for our support functions with minimal issues. Native integration with other AWS services like S3 and Lambda has been of paramount importance.
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