title: Difference between Rasa core and Rasa nlu
body: <p>I tried to understand the difference between <a href="https://core.rasa.ai/" rel="nofollow noreferrer">Rasa core</a> and <a href="https://nlu.rasa.ai/installation.html" rel="nofollow noreferrer">Rasa NLU</a> from the official documentation, but I don't understand much. What I understood is that Rasa core is used to guide the flow of the conversation, while Rasa NLU is used to process the text to extract information (entities).</p>
  <p>There are examples to build chatbots in <a href="https://core.rasa.ai/tutorial_basics.html" rel="nofollow noreferrer">Rasa core</a> as well as <a href="https://nlu.rasa.ai/tutorial.html" rel="nofollow noreferrer">Rasa NLU</a>. I couldn't understand what the difference in the two approaches is and when to adopt one instead of the other approach.</p>
  <p>Could you please help me to understand this better?</p>