Rasa

Rasa is an open-source conversational AI framework that allows developers to build custom AI assistants and chatbots with full control over data and infrastructure. It provides tools for NLU, dialogue management, and integration with messaging platforms. Key capabilities include intent classification, entity extraction, and custom action servers. The platform targets developers and data science teams who need privacy, customization, and scalability. Its unique differentiator is its open-source nature, offering complete transparency and the ability to deploy on-premises or in any cloud.