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Amazon Lex vs Yellow.ai

Amazon Lex logo

Amazon Lex

Software

AWS conversational AI service

From
$0.00075/per text request
Rated
-
Full reviewWebsite
Yellow.ai logo

Yellow.ai

Software

Enterprise AI platform for customer experience

From
On request
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); Yellow.ai free plan caps chat sessions at 500 per month, then charges $0.99 per additional resolution
  • They diverge on capability: Amazon Lex covers Speech recognition, Yellow.ai covers AI chatbots.

Where they differ

Only the attributes on which Amazon Lex and Yellow.ai actually diverge.

Attributes where Amazon Lex and Yellow.ai differ
AttributeAmazon LexYellow.ai
Starting price$0.00075/per text requestOn request
Pricing modelusage-basedsubscription
PlatformsWeb, AWS CloudWeb, Mobile, Messaging apps, Voice assistants
Founded20062016

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 Yellow.ai

  • AI chatbots
  • NLU capabilities
  • Multi-channel support
  • Analytics dashboard
  • Zendesk
  • Salesforce
  • HubSpot
  • Slack

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

Yellow.ai

  • Businesses wanting to trial an AI chat agent before committing to per-resolution or enterprise billingnot 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

Yellow.ai

  • Free plan caps chat sessions at 500 per month, then charges $0.99 per additional resolution
  • Enterprise plan pricing is not published and requires contacting sales for a custom quote
  • Basic plan pricing is not disclosed on the pricing page either, only feature details

Pricing, plan by plan

Amazon Lex

$0.00075/per text request

No published plan breakdown. See the Amazon Lex review.

Yellow.ai

On request
  • Starter$150/month
    • AI chatbot
    • 1 integration
  • Professional$400/month
    • Multi-channel
    • Advanced analytics
  • Enterprise$undefined/month
    • Custom solutions
    • Dedicated team

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 Yellow.ai if

  • You need ai chatbots.
  • You work on Web, Mobile, Messaging apps, Voice assistants.
  • You also want nlu capabilities.
Yellow.ai review

Questions people ask

Is Amazon Lex or Yellow.ai better?
Neither clearly leads. Amazon Lex starts at $0.00075/per text request and Yellow.ai at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Amazon Lex or Yellow.ai?
Amazon Lex starts at $0.00075/per text request and Yellow.ai at On request.
Does Amazon Lex or Yellow.ai run on more platforms?
Amazon Lex runs on Web, AWS Cloud. Yellow.ai runs on Web, Mobile, Messaging apps, Voice assistants.
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 Yellow.ai is typically brought in for.
What can Amazon Lex do that Yellow.ai cannot?
Amazon Lex covers Speech recognition, Natural language understanding, Voice and text, Lambda integration. Yellow.ai covers AI chatbots, NLU capabilities, Multi-channel support, Analytics dashboard. Both handle Web support, Mobile support.
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