Rasa Open Source

Rasa is among the most popular open source AI software used to build conversational interfaces. While the company mainly drives monetization from its enterprise product, it also has a powerful open source edition and a separate toolset for enhancing AI assistance. You can use Rasa to build custom ML models or leverage its pre-built library of models written in TensorFlow. Rasa Enterprise bolts on to the open source platform, bringing SSO-based security, service level agreements, and dedicated support.