Software · head to head
Capacity vs Rasa

Capacity
Software
AI-powered customer service automation platform
- From
- On request
- 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.
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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