Is Plain or Rasa better?

Neither clearly leads. Plain starts at $35/month and Rasa at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.

Which is cheaper, Plain or Rasa?

Rasa has a free tier; the other does not. Paid plans start at $35/month for Plain and Free for Rasa.

Does Plain or Rasa run on more platforms?

Plain runs on Web, 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. Plain starts at $35/month.

What is Plain best used for?

Plain is most often used for consolidating support from multiple channels into one inbox, automating support workflows with ai agents, extracting insights and trends from customer conversations, building custom support solutions with api access. Of those, consolidating support from multiple channels into one inbox and automating support workflows with ai agents are not what Rasa is typically brought in for.

What can Plain do that Rasa cannot?

Plain covers Multi-channel consolidation, AI agents, Workflow automation, Sidekick assistant. Rasa covers NLU engine, Dialogue management, Multi-language support, Testing tools.

Customer Support · head to head

Plain vs Rasa

Plain

Customer Support

AI support infrastructure built for B2B teams

From: $35/month
Rated: -

Full review Website

Rasa

Live Chat

Open-source framework for building conversational AI

From: Free
Rated: -

Full review Website

The short version

Only Rasa has a free tier, so it costs nothing to try first.
Each has a real cost: Plain foundation plan limited to 2,000 credits per month may be restrictive for high-volume teams; Rasa free Developer Edition caps conversations at 1,000 external or 100 internal per company per month
They diverge on capability: Plain covers Multi-channel consolidation, Rasa covers NLU engine.

Where they differ

Only the attributes on which Plain and Rasa actually diverge.

Attributes where Plain and Rasa differ
Attribute	Plain	Rasa
Starting price	$35/month	Free
Pricing model	Tiered pricing per seat with credit system	freemium
Free tier	No	Yes
Platforms	Web, API	On-premise, Cloud deployment, Docker, Kubernetes
Category	Customer Support	Live Chat
Founded	Unknown	2016

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 Plain

Multi-channel consolidation
AI agents
Workflow automation
Sidekick assistant
Insights engine
Linear and Jira integration
Help Center and Knowledge Base
API-first extensibility

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.

Plain

Consolidating support from multiple channels into one inboxnot Rasa
Automating support workflows with AI agentsnot Rasa
Extracting insights and trends from customer conversationsnot Rasa
Building custom support solutions with API accessnot Rasa
Implementing AI-assisted customer support at scalenot Rasa

Rasa

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

Where each one falls short

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

Plain

Foundation plan limited to 2,000 credits per month may be restrictive for high-volume teams
Pricing increases significantly from Foundation to Horizon ($35 to $299 per month)
No published pricing for Frontier (custom) plan
Additional seat costs ($99 per seat) add up for larger teams
Credit-based system requires monitoring usage to avoid overages

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

Plain

$35/month

Foundation$35/month
- 2,000 credits per month
- Slack and email channels
- Ari AI agent
Horizon$299/month
- 15,000 credits per month
- All Foundation features
- Microsoft Teams integration
Frontier$null/custom
- Custom credit allowance
- All Horizon features
- Discord channels

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 Plain if

You need multi-channel consolidation.
You work on Web, API.
You also want ai agents.

Plain 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 Plain or Rasa better?: Neither clearly leads. Plain starts at $35/month and Rasa at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Plain or Rasa?: Rasa has a free tier; the other does not. Paid plans start at $35/month for Plain and Free for Rasa.
Does Plain or Rasa run on more platforms?: Plain runs on Web, 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. Plain starts at $35/month.
What is Plain best used for?: Plain is most often used for consolidating support from multiple channels into one inbox, automating support workflows with ai agents, extracting insights and trends from customer conversations, building custom support solutions with api access. Of those, consolidating support from multiple channels into one inbox and automating support workflows with ai agents are not what Rasa is typically brought in for.
What can Plain do that Rasa cannot?: Plain covers Multi-channel consolidation, AI agents, Workflow automation, Sidekick assistant. Rasa covers NLU engine, Dialogue management, Multi-language support, Testing tools.

Answered from the vendors’ own pages

Plain: What is included in the Foundation plan?

The Foundation plan ($35/month per seat) includes 2,000 credits per month, support for Slack and email, Ari AI agent, Linear and Jira integrations, and Help Center access. Up to 5 seats are included.

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

Plain: Can I use Plain with Microsoft Teams?

Yes, Microsoft Teams integration is available on the Horizon plan ($299/month) and higher.

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

Plain: Is there a free trial for Plain?

Yes, Plain offers a 7-day free trial with no credit card required. You can also get 50% discount through their startup program.

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

Plain vs Rasa

Plain

Rasa

The short version

Where they differ

What each one covers

Only in Plain

Only in Rasa

What people use each for

Plain

Rasa

Where each one falls short

Plain

Rasa

Pricing, plan by plan

Plain

Rasa

Which should you pick?

Choose Plain if

Choose Rasa if

Questions people ask

Answered from the vendors’ own pages

Related pages

More on Plain

More on Rasa

Keep looking

Other head to heads