Can developers build custom conversational AI with machine learning capabilities?

Developers can create advanced conversational AI systems with customizable machine learning models and integrations.

Can Rasa build custom AI assistants with open-source flexibility?

Rasa builds custom AI assistants with open-source flexibility, allowing fully tailored conversational AI solutions.

How can Rasa's open-source conversational AI platform help developers build custom, secure AI assistants for enterprise applications?

Rasa provides an open-source framework for developers to build secure, customizable AI assistants for enterprise applications.

How does this open-source conversational AI framework enable developers to build custom chatbots and assistants?

The open-source conversational AI framework allows developers to build custom chatbots and intelligent assistants.

What open-source tools does this platform provide for developing and training conversational AI assistants?

Open-source resources support developing and training conversational AI assistants for custom applications.

Reviewed · Updated 2026-06-16

Rasa

Provides open-source conversational AI framework for building chatbots and assistants.

Reviewed by the Conversion Gems editorial team · 2026-06-16

Try Rasa

Pricing

Free

Best for

Developers

Community ratings

4.7/ 5 aggregate · across 2 sources

4.730+ reviews

Capterra

4.75+ reviews

Third-party ratings shown verbatim; aggregate weighted by review volume.

What it really is

Rasa - open-source conversational AI framework (NLU + dialogue) with free Developer Edition and enterprise Rasa Pro/Studio.

Our take

Developer Edition free for production up to 1K external conversations/mo (100 internal). Rasa Pro/Platform is commercial from ~$35K/year for scale, security and Studio no-code UI. Self-hosted, full customization for dev teams.

Best for

Engineers needing full control over NLU and dialogue policies

Regulated industries requiring on-prem deployment

Teams graduating from free tier to enterprise scale

Not good for

Non-technical marketers wanting plug-and-play chatbot SaaS

Small businesses expecting free unlimited production chat

Quick no-code setup without engineering resources

Friction report

Time to value

Slow: ML/engineering setup, training data, deployment.

Scale breakpoint

Jump to $35K+ platform for scale and Studio.

Walled garden

Low: OSS core, self-hosted.

A look inside

Frequently Asked Questions

Alternatives

Step up

Rasa Pro + Studio for enterprise teams.

Lighter alternative

Voiceflow or Botpress for faster no-code bots.

Ready to try Rasa?

Opens the official site — we may earn a commission if you sign up.