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Live Chat & Chatbots · head to head

Amazon Lex vs Botpress

Amazon Lex logo

Amazon Lex

Live Chat & Chatbots

AWS conversational AI service

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

Botpress

Live Chat & Chatbots

Open-source chatbot platform and framework

From
Free
Rated
-
Full reviewWebsite

The short version

  • Only Botpress 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); Botpress managed cloud version (Botpress Cloud) availability and pricing not accessible; open-source deployment requires managing infrastructure
  • They diverge on capability: Amazon Lex covers Speech recognition, Botpress covers Visual bot builder.

Where they differ

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

Attributes where Amazon Lex and Botpress differ
AttributeAmazon LexBotpress
Starting price$0.00075/per text requestFree
Pricing modelusage-basedopen-source
Free tierNoYes
PlatformsWeb, AWS CloudOpen-source (self-hosted), Cloud-managed (Botpress Cloud)
Founded20062016

Identical on both: user rating (Not yet rated), category (Live Chat & Chatbots).

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 Botpress

  • Visual bot builder
  • NLU integration
  • Multi-channel support
  • Analytics
  • Slack
  • Teams
  • Messenger
  • WhatsApp

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

Botpress

  • Development teams building chatbots and conversational AI using MIT-licensed open-source frameworknot Amazon Lex
  • Organisations needing custom conversational interfaces with programmatic control via SDK/CLInot 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

Botpress

  • Managed cloud version (Botpress Cloud) availability and pricing not accessible; open-source deployment requires managing infrastructure
  • Dependent on OpenAI integration; users must provide and manage OpenAI API keys and costs

Pricing, plan by plan

Amazon Lex

$0.00075/per text request

No published plan breakdown. See the Amazon Lex review.

Botpress

Free

No published plan breakdown. See the Botpress 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 Botpress if

  • You need visual bot builder.
  • You want to start without paying.
  • You work on Open-source (self-hosted), Cloud-managed (Botpress Cloud).
  • You also want nlu integration.
Botpress review

Questions people ask

Is Amazon Lex or Botpress better?
Neither clearly leads. Amazon Lex starts at $0.00075/per text request and Botpress at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Amazon Lex or Botpress?
Botpress has a free tier; the other does not. Paid plans start at $0.00075/per text request for Amazon Lex and Free for Botpress.
Does Amazon Lex or Botpress run on more platforms?
Amazon Lex runs on Web, AWS Cloud. Botpress runs on Open-source (self-hosted), Cloud-managed (Botpress Cloud).
Can I use Botpress for free?
Yes. Botpress 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 Botpress is typically brought in for.
What can Amazon Lex do that Botpress cannot?
Amazon Lex covers Speech recognition, Natural language understanding, Voice and text, Lambda integration. Botpress covers Visual bot builder, NLU integration, Multi-channel support, Analytics.
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Related pages

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