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Live Chat & Chatbots · head to head

Botpress vs Amazon Lex

Botpress logo

Botpress

Live Chat & Chatbots

Open-source chatbot platform and framework

From
Free
Rated
-
Full reviewWebsite
Amazon Lex logo

Amazon Lex

Live Chat & Chatbots

AWS conversational AI service

From
$0.00075/per text request
Rated
-
Full reviewWebsite

The short version

  • Only Botpress has a free tier, so it costs nothing to try first.
  • Each has a real cost: Botpress managed cloud version (Botpress Cloud) availability and pricing not accessible; open-source deployment requires managing infrastructure; 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: Botpress covers Visual bot builder, Amazon Lex covers Speech recognition.

Where they differ

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

Attributes where Botpress and Amazon Lex differ
AttributeBotpressAmazon Lex
Starting priceFree$0.00075/per text request
Pricing modelopen-sourceusage-based
Free tierYesNo
PlatformsOpen-source (self-hosted), Cloud-managed (Botpress Cloud)Web, AWS Cloud
Founded20162006

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 Botpress

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

Only in Amazon Lex

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

What people use each for

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

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

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

Where each one falls short

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

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

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

Botpress

Free

No published plan breakdown. See the Botpress review.

Amazon Lex

$0.00075/per text request

No published plan breakdown. See the Amazon Lex review.

Which should you pick?

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

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 Botpress or Amazon Lex better?
Neither clearly leads. Botpress 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, Botpress or Amazon Lex?
Botpress has a free tier; the other does not. Paid plans start at Free for Botpress and $0.00075/per text request for Amazon Lex.
Does Botpress or Amazon Lex run on more platforms?
Botpress runs on Open-source (self-hosted), Cloud-managed (Botpress Cloud). Amazon Lex runs on Web, AWS 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 Botpress best used for?
Botpress is most often used for development teams building chatbots and conversational ai using mit-licensed open-source framework, organisations needing custom conversational interfaces with programmatic control via sdk/cli. Of those, development teams building chatbots and conversational ai using mit-licensed open-source framework and organisations needing custom conversational interfaces with programmatic control via sdk/cli are not what Amazon Lex is typically brought in for.
What can Botpress do that Amazon Lex cannot?
Botpress covers Visual bot builder, NLU integration, Multi-channel support, Analytics. Amazon Lex covers Speech recognition, Natural language understanding, Voice and text, Lambda integration.
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