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Amazon Lex
AWS conversational AI service
As of 30 August 2026, Amazon Lex has a free plan and paid plans start at $0.004/per speech request. Amazon Lex is a fully managed conversational AI service that allows developers to build sophisticated, natural language chatbots using deep learning technologie. Softwr lists it under Live Chat. Amazon Lex is made by Amazon Web Services, launched in 2006, available on Web.
Overview
What Amazon Lex does
Amazon Lex is a fully managed conversational AI service that allows developers to build sophisticated, natural language chatbots using deep learning technologies.
What people use it for
- Chatbot development
- Voice-based conversational AI
- Natural language understanding
Related searches
The honest half
Where it falls short
Concrete and checkable, so you can decide whether any of them matter to you. This is the half of a review a vendor will not write about Amazon Lex.
- Pay-as-you-go model with no standard free tier, only AWS free credits for new customers (6 months, $200 limit)
- Speech requests cost $0.004 each, text requests $0.00075 each, training costs $0.50 per minute
- Variable costs can accumulate quickly for high-volume applications
Cross-shopped
What people choose instead of Amazon Lex
Each pairing was judged by two reviewers asking whether a buyer would genuinely weigh the two against each other. The ones that failed were deleted rather than published.
- Amazon LexvsBotpress
Botpress: Open-source chatbot platform and framework
- Amazon LexvsCrisp
Crisp: Customer messaging platform for startups and SMBs
- Amazon LexvsGoogle Dialogflow
Google Dialogflow: Google's conversational AI platform
Pricing
What Amazon Lex costs
Taken from the vendor's own pricing page. Prices move, so check before you buy.
Standard Usage
$0.004 /per speech request
- Speech requests at $0.004 each
Text Requests
$0.001 /per text request
- Text requests at $0.00075 each
Capabilities
Features
Speech recognition
Natural language understanding
Voice and text
Lambda integration
AWS services
Integration with AWS services
Lambda
Integration with Lambda
DynamoDB
Integration with DynamoDB
SNS
Integration with SNS
Web support
Available on Web
Mobile support
Available on Mobile
Voice devices support
Available on Voice devices
Contact centers support
Available on Contact centers
Answered, with sources
Questions people ask
Each answer names the page it came from, so you can check it rather than take our word for it.
How much does Amazon Lex cost?
Amazon Lex charges $0.004 per speech request and $0.00075 per text request with no upfront commitments or minimum fees required.
SourceIs there a free tier for Amazon Lex?
Yes, new AWS customers receive 10,000 text requests and 5,000 speech requests per month free for the first year. Additional $200 in AWS Free Tier credits are available for new customers as of July 15, 2025, with all credits expiring within 12 months.
SourceWhat is the example monthly cost for Amazon Lex?
For 8,000 speech requests ($32) and 2,000 text requests ($1.50), the approximate monthly total is $33.50, though actual costs vary based on usage volume.
SourceBehind it
Who makes Amazon Lex
- Company
- Amazon Web Services
- Based in
- Seattle, Washington, USA
Keep looking
Where to go from Amazon Lex
- Amazon Lex alternativesEvery product people weigh against it
- Amazon Lex pricingPlans, floors and what the tiers exclude
- Amazon Lex badgesWhich rules it meets, and the figure behind each
- All Live Chat softwareThe full category
- Best Live Chat softwareThe shortlist, and how it was cut
Best Live Chat software for
Compare Amazon Lex with
- Botpress
- IBM Watson Assistant
- Oracle Digital Assistant
- Google Dialogflow
- Rasa
- Verloop.io
- Kore.ai
- Ada
- LivePerson
- Crisp
- Zendesk Sunshine Conversations
- Tidio
- Freshchat
- Haptik
- Jivochat
- Kayako
- Microsoft Bot Framework
- LivePerson
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Softwr does not host reviews and shows no star rating for Amazon Lex, because a rating we did not collect is not ours to publish. What is here is the pricing and platform detail from the vendor’s own pages, limitations we could state concretely, and alternatives a reviewer confirmed people weigh against it. Tell us if any of it is wrong.
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