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Customer Support · head to head

Calabrio ONE vs Rasa

Calabrio ONE logo

Calabrio ONE

Customer Support

Workforce management, quality and analytics suite for contact centres, now owned by Verint

From
On request
Free plan
No
Full reviewWebsite
Rasa logo

Rasa

Live Chat

Open-source framework for building conversational AI

From
Free
Free plan
Yes
Full reviewWebsite

The short version

  • Only Rasa has a free tier, so it costs nothing to try first.
  • Each has a real cost: Calabrio ONE ownership changed in November 2025 when Thoma Bravo took Verint private and merged it with Calabrio, so the product is no longer the independent alternative to Verint that most shortlists put it on for, and roadmap priorities across two overlapping suites will be decided by one company.; Rasa free Developer Edition caps conversations at 1,000 external or 100 internal per company per month
  • They diverge on capability: Calabrio ONE covers Intelligent forecasting, Rasa covers NLU engine.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Calabrio ONE and Rasa actually diverge.

Attributes where Calabrio ONE and Rasa differ
AttributeCalabrio ONERasa
Starting priceOn requestFree
Pricing modelquotefreemium
Free tierNoYes
PlatformsWeb, iOS, AndroidOn-premise, Cloud deployment, Docker, Kubernetes
CategoryCustomer SupportLive Chat
FoundedUnknown2016

Identical on both: user rating (Not yet rated).

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 Calabrio ONE

  • Intelligent forecasting
  • Automated scheduling
  • Intraday optimisation
  • Real-time adherence
  • Agent self-service
  • Call and screen recording
  • Quality management
  • Speech and desktop analytics

Only in Rasa

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

What people use each for

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

Calabrio ONE

  • A 1,200-seat contact centre on Amazon Connect needing forecasting and adherence that the native scheduling tools do not providenot Rasa
  • A multi-site operation replacing spreadsheet rostering that no longer copes with skills-based routing and part-time shift patternsnot Rasa
  • A retailer forecasting seasonal contact volume across voice, chat and email to decide temporary hiring numbers months aheadnot Rasa
  • A compliance-bound centre needing call and screen recording with retention and redaction controls independent of its telephony vendornot Rasa

Rasa

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

Where each one falls short

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

Calabrio ONE

  • Ownership changed in November 2025 when Thoma Bravo took Verint private and merged it with Calabrio, so the product is no longer the independent alternative to Verint that most shortlists put it on for, and roadmap priorities across two overlapping suites will be decided by one company.
  • The combined business has run substantial layoffs following the buyout, which raises real questions about support responsiveness and module investment that a prospective buyer should press on in contract negotiation.
  • Pricing is quoted per agent per month, commonly cited from around 75 US dollars, with analytics and quality sold as separate modules, so the headline figure understates a full suite deployment considerably.
  • There is no free trial and no self-service tier, meaning evaluating the forecasting engine against your own historical data requires a sales-led proof of concept measured in weeks.
  • The forecasting and scheduling engine assumes an operations team that can configure shift rules, service level targets and skill routing correctly; deployed by a team without that expertise it produces schedules people override manually, which negates the reason to buy it.

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

Calabrio ONE

On request
  • Calabrio ONE$undefined/year
    • Workforce management forecasting and scheduling
    • Real-time adherence
    • Agent self-service and mobile app

Rasa

Free
  • Free Developer EditionFree
    • One bot per company
    • Up to 1,000 external conversations per month or 100 internal conversations per month
    • Free Rasa license for local or production use
  • Rasa Pro$undefined/mo
    • Pro-code framework with CALM dialogue understanding
    • Language-agnostic NLU, enterprise search, multi-LLM management
    • Kubernetes support
  • Enterprise$undefined/mo
    • Full access to Rasa Platform and Premium Support
    • 24/7/365 support with Customer Success Manager
    • Business reviews and guidance

Which should you pick?

Choose Calabrio ONE if

  • You need intelligent forecasting.
  • You work on Web, iOS, Android.
  • You also want automated scheduling.
Calabrio ONE review

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.
Rasa review

Questions people ask

Is Calabrio ONE or Rasa better?
Neither clearly leads. Calabrio ONE 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, Calabrio ONE or Rasa?
Rasa has a free tier; the other does not. Paid plans start at On request for Calabrio ONE and Free for Rasa.
Does Calabrio ONE or Rasa run on more platforms?
Calabrio ONE runs on Web, iOS, Android. 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. Calabrio ONE starts at On request.
What is Calabrio ONE best used for?
Calabrio ONE is most often used for a 1,200-seat contact centre on amazon connect needing forecasting and adherence that the native scheduling tools do not provide, a multi-site operation replacing spreadsheet rostering that no longer copes with skills-based routing and part-time shift patterns, a retailer forecasting seasonal contact volume across voice, chat and email to decide temporary hiring numbers months ahead, a compliance-bound centre needing call and screen recording with retention and redaction controls independent of its telephony vendor. Of those, a 1,200-seat contact centre on amazon connect needing forecasting and adherence that the native scheduling tools do not provide and a multi-site operation replacing spreadsheet rostering that no longer copes with skills-based routing and part-time shift patterns are not what Rasa is typically brought in for.
What can Calabrio ONE do that Rasa cannot?
Calabrio ONE covers Intelligent forecasting, Automated scheduling, Intraday optimisation, Real-time adherence. Rasa covers NLU engine, Dialogue management, Multi-language support, Testing tools.

Answered from the vendors’ own pages

Calabrio ONE: Is Calabrio still a separate product from Verint?

It is still sold and supported under the Calabrio name, but the companies merged under Thoma Bravo ownership in November 2025 and calabrio.com now redirects to verint.com.

Rasa: Does Rasa offer a free version?

Yes. Rasa offers a free Developer Edition with one bot per company, up to 1,000 external conversations per month, and free community support.

Source
Calabrio ONE: Will Calabrio customers be forced to migrate to Verint?

Verint has publicly committed to supporting and enhancing Calabrio solutions with no forced migration. Get that commitment written into your contract term rather than relying on the statement.

Rasa: What support is included with Rasa's free tier?

The free tier includes community forum support with responses from Rasa community members. Paid tiers add premium support with enhanced response times.

Source
Calabrio ONE: Does it replace my contact centre platform?

No. It sits on top of your CCaaS or telephony platform and handles workforce management, recording and quality.

Rasa: What is the difference between Rasa Pro and Enterprise?

Rasa Pro includes the pro-code framework with advanced NLU and multi-LLM management. Enterprise adds full platform access, 24/7 support, dedicated Customer Success Manager, and business reviews.

Source
Calabrio ONE: What does it cost?

Nothing is published. Independent reporting puts the entry point near 75 US dollars per agent per month, rising with quality and analytics modules.

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