Rasa
rasa.com
Open-source conversational AI framework for building contextual assistants and chatbots.
Quick Information
- Category:
- Writing & Chat
- Pricing:
- Freemium
- Platforms:
- Self-hosted, API
- Free Plan:
- Yes
- API Available:
- Yes
- Last Verified:
- September 2026
What Is Rasa?
Rasa is an open-source conversational AI framework that has moved to CALM (Conversational AI with Language Models), an LLM-native approach where a language model handles understanding while the actions the agent can take stay defined in code. The Rasa Developer Edition is free and includes CALM, covering up to 1,000 conversations/month (100/month for internal employee agents); beyond that volume, pricing moves to the Growth tier starting around $35,000/year, or a custom Enterprise plan.
There are genuinely two distinct Rasas worth understanding: the historic open-source core on GitHub (Apache 2.0 license) covers the language understanding engine and scenario-based dialogue management, while Rasa Pro is a separate, commercially-licensed edition shipping recent building blocks including the CALM approach — banks, telcos, and healthcare organizations specifically choose Rasa because it provides genuine full control over the model, data, and hosting location, though this comes with the real tradeoff of needing dedicated engineering time and infrastructure ownership.
It's aimed at organizations in regulated industries (banking, telecom, healthcare) needing full control over conversational AI data and infrastructure rather than relying on a fully managed third-party platform, with the free Developer Edition's 1,000 monthly conversations providing genuine capability for smaller deployments before needing the substantially more expensive Growth tier (~$35,000/year) for production-scale enterprise use. See our AI Chatbots directory for related tools like Botpress and Dialogflow.
What Can You Use Rasa For?
Self-hosted conversational AI
Builds contextual assistants and chatbots with full control over data and infrastructure.
Regulated-industry deployment
Deploys conversational AI in banking, telecom, and healthcare where data control is critical.
CALM-based dialogue management
Uses an LLM-native approach where an LLM handles understanding and code defines available actions.
Rasa Features
- CALM (Conversational AI with Language Models) — Provides an LLM-native dialogue management approach with code-defined actions.
- Full data and infrastructure control — Allows self-hosting for complete control over data, model, and deployment location.
- Open-source core — Provides the language understanding engine and dialogue management under Apache 2.0.
Who Is Rasa For?
- Regulated industries (banking, telecom, healthcare) — Uses full data and infrastructure control unavailable with fully managed third-party platforms.
- Development teams with dedicated infrastructure resources — Uses the free Developer Edition for smaller deployments before scaling to Growth or Enterprise.
Rasa Pros & Limitations
What We Like
- Free Developer Edition provides genuine production capability up to 1,000 conversations/month
- Full control over model, data, and hosting location — a real requirement for regulated industries
- Open-source core (Apache 2.0) provides transparency and no vendor lock-in for the base framework
Limitations
- Growth tier pricing (~$35,000/year) represents a substantial jump beyond the free Developer Edition
- Requires dedicated engineering time and infrastructure ownership, unlike fully managed alternatives
- Rasa Pro’s CALM features are commercially licensed, separate from the historic open-source core
Rasa Pricing
| Plan | Price | Main Features |
|---|---|---|
| Developer Edition | Free | CALM included, up to 1,000 conversations/month |
| Growth | ~$35,000/year | Production-scale conversation volume |
| Enterprise | Custom | Full feature set, custom deployment |
Pricing was last verified September 2026. Check the official website for the latest pricing.
AI Listing Jungle Ranking
- Global Rank:
- #50
- Overall Score:
- 82.8/100
- Monthly Users:
- –
- Rank Change:
- ▼ 7
This ranking reflects AI Listing Jungle's own independent scoring methodology and is not an endorsement by Rasa or its company. How Our Rankings Work
Frequently Asked Questions
Is Rasa free?
Yes, the Developer Edition is free and includes CALM, covering up to 1,000 conversations/month.
How much does Rasa cost beyond the free tier?
The Growth tier starts around $35,000/year, with custom Enterprise pricing above that.
What is CALM?
Conversational AI with Language Models — an LLM-native dialogue management approach with code-defined actions.
Why do regulated industries choose Rasa?
It provides full control over the model, data, and hosting location, unlike fully managed platforms.
Our Take
Rasa's full control over model, data, and infrastructure genuinely matters for regulated industries like banking and healthcare, justifying the engineering investment it requires compared to managed alternatives.
The jump from the free Developer Edition's 1,000 conversations/month to the ~$35,000/year Growth tier is substantial — plan production-scale budgets accordingly.
Rasa Alternatives
Rasa Comparisons
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