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Software · head to head

Capacity vs Rasa

Capacity logo

Capacity

Software

AI-powered customer service automation platform

From
On request
Rated
-
Rasa logo

Rasa

Software

Open-source framework for building conversational AI

From
Free
Rated
-

The short version

  • Only Rasa has a free tier, so it costs nothing to try first.
  • Each has a real cost: Capacity two-part pricing, an annual platform fee plus usage, so the bill is not knowable from the tier alone; Rasa free Developer Edition caps conversations at 1,000 external or 100 internal per company per month
  • They diverge on capability: Capacity covers AI chatbot, Rasa covers NLU engine.

Where they differ

Only the attributes on which Capacity and Rasa actually diverge.

Attributes where Capacity and Rasa differ
AttributeCapacityRasa
Starting priceOn requestFree
Pricing modelsubscriptionopen-source
Free tierNoYes
PlatformsWeb, Mobile, Chat widgets, APIOn-premise, Cloud deployment, Docker, Kubernetes

Identical on both: user rating (Not yet rated), category (Unknown), founded (2016).

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 Capacity

  • AI chatbot
  • Knowledge management
  • Multi-channel support
  • Analytics
  • Salesforce
  • Zendesk
  • ServiceNow
  • Web support

Only in Rasa

  • NLU engine
  • Dialogue management
  • Multi-language support
  • Testing tools
  • Teams
  • Custom channels
  • API
  • On-premise support

Both cover

  • Slack

What people use each for

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

Capacity

  • Knowledge base and helpdesk deflectionnot Rasa
  • AI agents answering across chat, voice, email and SMSnot Rasa
  • Real-time assistance for human agents on a callnot Rasa
  • Automating multi-step support workflowsnot Rasa
  • Regulated support environments needing the HIPAA packagenot Rasa

Rasa

  • Developers self-hosting an open source conversational AI framework before needing enterprise scalenot Capacity

Where each one falls short

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

Capacity

  • Two-part pricing, an annual platform fee plus usage, so the bill is not knowable from the tier alone
  • AI usage is metered by channel: per response on chat and email, per minute on voice and per message on SMS
  • Agent Assist and conversation intelligence are charged per hour of agent time on top
  • Live chat, agent assist and conversation intelligence require the Pro tier
  • The HIPAA package and advanced workflows are Enterprise only
  • No prices are published for any tier

Rasa

  • Free Developer Edition caps conversations at 1,000 external or 100 internal per company per month
  • Rasa Pro and the Business Plan (Pro plus Studio) are not priced on the site and require contacting sales

Pricing, plan by plan

Capacity

On request
  • Starter$125/month
    • AI chatbot
    • Up to 50 articles
  • Professional$300/month
    • Unlimited articles
    • Advanced AI
  • Enterprise$undefined/month
    • Full customization
    • Dedicated support

Rasa

Free
  • Open SourceFree
    • Full framework access
    • Community support
  • Rasa Pro$50/month
    • Additional tools
    • Priority support
  • Enterprise$undefined/month
    • Advanced features
    • Dedicated support

Which should you pick?

Choose Capacity if

  • You need ai chatbot.
  • You work on Web, Mobile, Chat widgets, API.
  • You also want knowledge management.

Choose Rasa if

  • You need nlu engine.
  • You want to start without paying.
  • You work on On-premise, Cloud deployment, Docker, Kubernetes.
  • You also want dialogue management.

Questions people ask

Is Capacity or Rasa better?
Neither clearly leads. Capacity starts at On request and Rasa at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Capacity or Rasa?
Rasa has a free tier; the other does not. Paid plans start at On request for Capacity and Free for Rasa.
Does Capacity or Rasa run on more platforms?
Capacity runs on Web, Mobile, Chat widgets, API. Rasa runs on On-premise, Cloud deployment, Docker, Kubernetes.
Can I use Rasa for free?
Yes. Rasa has a free tier, so you can try it without paying. Capacity starts at On request.
What is Capacity best used for?
Capacity is most often used for knowledge base and helpdesk deflection, ai agents answering across chat, voice, email and sms, real-time assistance for human agents on a call, automating multi-step support workflows. Of those, knowledge base and helpdesk deflection and ai agents answering across chat, voice, email and sms are not what Rasa is typically brought in for.
What can Capacity do that Rasa cannot?
Capacity covers AI chatbot, Knowledge management, Multi-channel support, Analytics. Rasa covers NLU engine, Dialogue management, Multi-language support, Testing tools. Both handle Slack.

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