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Amazon Lex vs Chatra

Amazon Lex logo

Amazon Lex

Live Chat

AWS conversational AI service

From
Free
Rated
-
Full reviewWebsite
Chatra logo

Chatra

Live Chat

Live chat and CRM software for customer engagement

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Amazon Lex pay-as-you-go model with no standard free tier, only AWS free credits for new customers (6 months, $200 limit); Chatra free plan is capped at 5 chats per month and one agent seat
  • They diverge on capability: Amazon Lex covers Speech recognition, Chatra covers Live chat messaging.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Amazon Lex and Chatra actually diverge.

Attributes where Amazon Lex and Chatra differ
AttributeAmazon LexChatra
Pricing modelusage-basedfreemium
PlatformsWeb, AWS CloudWeb, Mobile app, IOS, Android
Founded20062010

Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated), category (Live Chat).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Amazon Lex

  • Speech recognition
  • Natural language understanding
  • Voice and text
  • Lambda integration
  • AWS services
  • Lambda
  • DynamoDB
  • SNS

Only in Chatra

  • Live chat messaging
  • CRM functionality
  • Visitor tracking
  • Chat history
  • Shopify
  • Zapier
  • Slack
  • API

Both cover

  • Web support

What people use each for

The jobs each tool is most often brought in to do.

Amazon Lex

  • Chatbot developmentnot Chatra
  • Voice-based conversational AInot Chatra
  • Natural language understandingnot Chatra

Chatra

  • Small teams starting on live chat with a hard free-tier chat limit before needing to upgradenot Amazon Lex

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

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

Chatra

  • Free plan is capped at 5 chats per month and one agent seat
  • Essential and Pro tiers are billed per agent seat at $31/month and $41/month (or $25/month and $33/month if billed yearly), so cost rises directly with headcount

Pricing, plan by plan

Amazon Lex

Free
  • Standard Usage$0.004/per speech request
    • Speech requests at $0.004 each
  • Text Requests$0.00075/per text request
    • Text requests at $0.00075 each

Chatra

Free
  • FreeFree
    • Live chat
    • Basic CRM
    • 1 agent
  • Starter$15/month
    • Unlimited agents
    • Advanced CRM
  • Business$49/month
    • Priority support
    • Custom branding

Which should you pick?

Choose Amazon Lex if

  • You need speech recognition.
  • You want to start without paying.
  • You work on Web, AWS Cloud.
  • You also want natural language understanding.
Amazon Lex review

Choose Chatra if

  • You need live chat messaging.
  • You want to start without paying.
  • You work on Web, Mobile app, IOS, Android.
  • You also want crm functionality.
Chatra review

Questions people ask

Is Amazon Lex or Chatra better?
Neither clearly leads. Amazon Lex starts at Free and Chatra at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Amazon Lex or Chatra?
Amazon Lex starts at Free and Chatra at Free.
Does Amazon Lex or Chatra run on more platforms?
Amazon Lex runs on Web, AWS Cloud. Chatra runs on Web, Mobile app, IOS, Android.
Can I use Amazon Lex for free?
Both have a free tier, so you can try either at no cost before committing.
What is Amazon Lex best used for?
Amazon Lex is most often used for chatbot development, voice-based conversational ai, natural language understanding. Of those, chatbot development and voice-based conversational ai are not what Chatra is typically brought in for.
What can Amazon Lex do that Chatra cannot?
Amazon Lex covers Speech recognition, Natural language understanding, Voice and text, Lambda integration. Chatra covers Live chat messaging, CRM functionality, Visitor tracking, Chat history. Both handle Web support.

Answered from the vendors’ own pages

Amazon Lex: 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.

Source
Chatra: Is Chatra's free plan available indefinitely?

Yes. Chatra's free plan is available free for as long as you want with no time limitation. No credit card is required to start.

Source
Amazon Lex: Is 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.

Source
Chatra: How quickly can I start using Chatra's free plan?

The free plan can be started in 3 minutes according to the website.

Source
Amazon Lex: What 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.

Source
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