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Olark vs Rasa

Olark logo

Olark

Live Chat

Make your business human

From
$29/month
Rated
-
Full reviewWebsite
Rasa logo

Rasa

Live Chat

Open-source framework for building conversational AI

From
Free
Rated
-
Full reviewWebsite

The short version

  • Only Rasa has a free tier, so it costs nothing to try first.
  • Each has a real cost: Olark the AI website agent is a $400 a month flat plan billed annually at $4,800, which is a large step from the $29 per agent human only plan; Rasa free Developer Edition caps conversations at 1,000 external or 100 internal per company per month
  • They diverge on capability: Olark covers Live chat, Rasa covers NLU engine.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Olark and Rasa actually diverge.

Attributes where Olark and Rasa differ
AttributeOlarkRasa
Starting price$29/monthFree
Pricing modelsubscriptionfreemium
Free tierNoYes
PlatformsWebOn-premise, Cloud deployment, Docker, Kubernetes
Founded20092016

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

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 Olark

  • Live chat
  • Chat transcripts
  • Visitor insights
  • Customization
  • Offline messaging
  • Shortcuts
  • Salesforce
  • HubSpot

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.

Olark

  • Live chat on a website with a small support teamnot Rasa
  • Running an AI agent on website conversations with human handoffnot Rasa

Rasa

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

Where each one falls short

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

Olark

  • The AI website agent is a $400 a month flat plan billed annually at $4,800, which is a large step from the $29 per agent human only plan
  • That flat price covers only one human seat, with each additional seat at $29 a month
  • Regional routing, SSO and custom SLAs require a custom enterprise plan with no published price

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

Olark

$29/month
  • Standard AI Website Agent$400/month
    • One human agent seat included
    • Unlimited AI conversations
    • Automatic FAQ and knowledge updates
  • Live Chat Only$29/month
    • Human operators only
    • No AI component
    • Upgradeable to AI later
  • Custom Enterprise$undefined/mo
    • Regional routing
    • Advanced integrations
    • Custom workflows

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 Olark if

  • You need live chat.
  • You also want chat transcripts.
Olark 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 Olark or Rasa better?
Neither clearly leads. Olark starts at $29/month and Rasa at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Olark or Rasa?
Rasa has a free tier; the other does not. Paid plans start at $29/month for Olark and Free for Rasa.
Does Olark or Rasa run on more platforms?
Olark runs on Web. 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. Olark starts at $29/month.
What is Olark best used for?
Olark is most often used for live chat on a website with a small support team, running an ai agent on website conversations with human handoff. Of those, live chat on a website with a small support team and running an ai agent on website conversations with human handoff are not what Rasa is typically brought in for.
What can Olark do that Rasa cannot?
Olark covers Live chat, Chat transcripts, Visitor insights, Customization. Rasa covers NLU engine, Dialogue management, Multi-language support, Testing tools. Both handle Slack.

Answered from the vendors’ own pages

Olark: How much does Olark's Standard AI plan cost?

Olark's Standard AI Website Agent plan costs $400 per month when billed annually ($4,800/year). This includes one human agent seat, unlimited AI conversations, automatic FAQ updates, lead capture, and white glove support with no token limits or overages.

Source
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
Olark: What is the cost for additional agent seats on Olark?

Additional human agent seats on Olark cost $29 per agent per month. This rate applies when upgrading from the Standard AI plan.

Source
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
Olark: Does Olark charge based on token usage?

No, Olark explicitly states 'No token costs, ever.' The Standard AI plan charges per agent seat with no usage-based overages or token limits, avoiding unexpected cost spikes during peak traffic periods.

Source
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
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