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Amazon Lex vs Zendesk

Amazon Lex logo

Amazon Lex

Software

AWS conversational AI service

From
$0.00075/per text request
Rated
-
Full reviewWebsite
Zendesk logo

Zendesk

Software

Champions of customer service

From
$19/month
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); Zendesk aI agents operate on per-resolution billing; customers pay only when an AI agent successfully resolves a ticket without escalation
  • They diverge on capability: Amazon Lex covers Speech recognition, Zendesk covers Ticket management.

Where they differ

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

Attributes where Amazon Lex and Zendesk differ
AttributeAmazon LexZendesk
Starting price$0.00075/per text request$19/month
Pricing modelusage-basedsubscription
PlatformsWeb, AWS CloudWeb
Founded20062007

Identical on both: free tier (No), user rating (Not yet rated), category (Unknown).

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 Zendesk

  • Ticket management
  • Omnichannel support
  • Knowledge base
  • Live chat
  • Call center
  • Analytics & reporting
  • Automation
  • Customer satisfaction

What people use each for

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

Amazon Lex

  • Building conversational chatbots leveraging Alexa deep learning enginenot Zendesk
  • Voice and text-based NLU applications requiring automatic speech recognitionnot Zendesk
  • Custom conversational interfaces integrated into existing applicationsnot Zendesk

Zendesk

  • Help desk and ticketing system managementnot Amazon Lex
  • Omnichannel customer supportnot Amazon Lex
  • Knowledge base and self-service portalsnot Amazon Lex
  • AI-assisted customer servicenot 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

Zendesk

  • AI agents operate on per-resolution billing; customers pay only when an AI agent successfully resolves a ticket without escalation
  • Copilot and Contact Center features available as separate add-ons at £50+/agent/month
  • Advanced routing, workforce engagement, and approval workflows limited to Enterprise tier
  • Highest tier requires sales consultation and custom pricing

Pricing, plan by plan

Amazon Lex

$0.00075/per text request

No published plan breakdown. See the Amazon Lex review.

Zendesk

$19/month

No published plan breakdown. See the Zendesk review.

Which should you pick?

Choose Amazon Lex if

  • You need speech recognition.
  • You work on Web, AWS Cloud.
  • You also want natural language understanding.
Amazon Lex review

Choose Zendesk if

  • You need ticket management.
  • You also want omnichannel support.
Zendesk review

Questions people ask

Is Amazon Lex or Zendesk better?
Neither clearly leads. Amazon Lex starts at $0.00075/per text request and Zendesk at $19/month, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Amazon Lex or Zendesk?
Amazon Lex starts at $0.00075/per text request and Zendesk at $19/month.
Does Amazon Lex or Zendesk run on more platforms?
Amazon Lex runs on Web, AWS Cloud. Zendesk runs on Web.
What is Amazon Lex best used for?
Amazon Lex is most often used for building conversational chatbots leveraging alexa deep learning engine, voice and text-based nlu applications requiring automatic speech recognition, custom conversational interfaces integrated into existing applications. Of those, building conversational chatbots leveraging alexa deep learning engine and voice and text-based nlu applications requiring automatic speech recognition are not what Zendesk is typically brought in for.
What can Amazon Lex do that Zendesk cannot?
Amazon Lex covers Speech recognition, Natural language understanding, Voice and text, Lambda integration. Zendesk covers Ticket management, Omnichannel support, Knowledge base, Live chat.
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