Rasa
Build text and voice assistants with open-source NLU and dialogue tooling.
What’s included for free?
Rasa Open Source is free to install and run; model providers, connectors, infrastructure and Rasa Pro or managed services are separate.
Where it runs: Self-hosted
Provider information ↗Checked 2026-10-27
Before you use it
Apache-2.0.
Provider terms can change. Check current pricing and usage rights before starting a project.