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Amazon Lex vs Ada

Amazon Lex logo

Amazon Lex

Software

AWS conversational AI service

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

Ada

Software

Conversational AI platform powered by machine learning

From
Free
Rated
-
Full reviewWebsite

The short version

  • Only Ada has a free tier, so it costs nothing to try first.
  • 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); Ada pricing is not published anywhere and requires a sales conversation
  • They diverge on capability: Amazon Lex covers Speech recognition, Ada covers Conversational AI.

Where they differ

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

Attributes where Amazon Lex and Ada differ
AttributeAmazon LexAda
Starting price$0.00075/per text requestFree
Pricing modelusage-basedsubscription
Free tierNoYes
PlatformsWeb, AWS CloudWeb, Mobile, SMS, Messaging apps
Founded20062016

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 Amazon Lex

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

Only in Ada

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

Both cover

  • Web support
  • Mobile support

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 Ada
  • Voice and text-based NLU applications requiring automatic speech recognitionnot Ada
  • Custom conversational interfaces integrated into existing applicationsnot Ada

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

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

Ada

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

Pricing, plan by plan

Amazon Lex

$0.00075/per text request

No published plan breakdown. See the Amazon Lex review.

Ada

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

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 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

Questions people ask

Is Amazon Lex or Ada better?
Neither clearly leads. Amazon Lex starts at $0.00075/per text request and Ada at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Amazon Lex or Ada?
Ada has a free tier; the other does not. Paid plans start at $0.00075/per text request for Amazon Lex and Free for Ada.
Does Amazon Lex or Ada run on more platforms?
Amazon Lex runs on Web, AWS Cloud. Ada runs on Web, Mobile, SMS, Messaging apps.
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 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 Ada is typically brought in for.
What can Amazon Lex do that Ada cannot?
Amazon Lex covers Speech recognition, Natural language understanding, Voice and text, Lambda integration. Ada covers Conversational AI, Automatic resolution, Multi-language support, Analytics. Both handle Web support, Mobile support.
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