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Ada vs Amazon Lex

Ada logo

Ada

Software

Conversational AI platform powered by machine learning

From
Free
Rated
-
Full reviewWebsite
Amazon Lex logo

Amazon Lex

Software

AWS conversational AI service

From
$0.00075/per text request
Rated
-
Full reviewWebsite

The short version

  • Only Ada has a free tier, so it costs nothing to try first.
  • Each has a real cost: Ada pricing is not published anywhere and requires a sales conversation; Amazon Lex pay-as-you-go model with no standard free tier, only AWS free credits for new customers (6 months, $200 limit)
  • They diverge on capability: Ada covers Conversational AI, Amazon Lex covers Speech recognition.

Where they differ

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

Attributes where Ada and Amazon Lex differ
AttributeAdaAmazon Lex
Starting priceFree$0.00075/per text request
Pricing modelsubscriptionusage-based
Free tierYesNo
PlatformsWeb, Mobile, SMS, Messaging appsWeb, AWS Cloud
Founded20162006

Identical on both: 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 Ada

  • Conversational AI
  • Automatic resolution
  • Multi-language support
  • Analytics
  • Salesforce
  • Zendesk
  • Slack
  • API

Only in Amazon Lex

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

Both cover

  • Web support
  • Mobile support

What people use each for

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

Ada

  • AI agents resolving customer queries over chat, voice and emailnot Amazon Lex
  • Deflecting repetitive contacts before they reach an agentnot Amazon Lex
  • Automating multi-step actions such as order lookups and returnsnot Amazon Lex
  • Multilingual support across a global customer basenot Amazon Lex

Amazon Lex

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

Where each one falls short

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

Ada

  • Pricing is not published anywhere and requires a sales conversation
  • Sold to enterprises rather than to small support teams

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

Pricing, plan by plan

Ada

Free
  • FreeFree
    • Basic chatbot
    • Single language
  • Growth$100/month
    • Advanced AI
    • Multi-language
  • Scale$undefined/month
    • Enterprise features
    • Dedicated support

Amazon Lex

$0.00075/per text request

No published plan breakdown. See the Amazon Lex review.

Which should you pick?

Choose Ada if

  • You need conversational ai.
  • You want to start without paying.
  • You work on Web, Mobile, SMS, Messaging apps.
  • You also want automatic resolution.
Ada review

Choose Amazon Lex if

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

Questions people ask

Is Ada or Amazon Lex better?
Neither clearly leads. Ada starts at Free and Amazon Lex at $0.00075/per text request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Ada or Amazon Lex?
Ada has a free tier; the other does not. Paid plans start at Free for Ada and $0.00075/per text request for Amazon Lex.
Does Ada or Amazon Lex run on more platforms?
Ada runs on Web, Mobile, SMS, Messaging apps. Amazon Lex runs on Web, AWS Cloud.
Can I use Ada for free?
Yes. Ada has a free tier, so you can try it without paying. Amazon Lex starts at $0.00075/per text request.
What is Ada best used for?
Ada is most often used for ai agents resolving customer queries over chat, voice and email, deflecting repetitive contacts before they reach an agent, automating multi-step actions such as order lookups and returns, multilingual support across a global customer base. Of those, ai agents resolving customer queries over chat, voice and email and deflecting repetitive contacts before they reach an agent are not what Amazon Lex is typically brought in for.
What can Ada do that Amazon Lex cannot?
Ada covers Conversational AI, Automatic resolution, Multi-language support, Analytics. Amazon Lex covers Speech recognition, Natural language understanding, Voice and text, Lambda integration. Both handle Web support, Mobile support.
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