rasa NLU is described as 'Tool for intent classification and entity extraction. You can think of rasa NLU as a set of high level APIs for building your own language parser using existing NLP and ML libraries' and is an app in the development category. There are more than 25 alternatives to rasa NLU for a variety of platforms, including Web-based, SaaS, Self-Hosted, Mac and Windows apps. The best rasa NLU alternative is Khoj, which is both free and Open Source. Other great apps like rasa NLU are Syllabi, CopilotKit, Google AI Studio and TeliChat.