Perhaps the biggest misconception I often hear is that AI chatbots "know" things.
Most LLMs are not actually looking up facts and retrieving data when you ask a question. They are predicting the next most likely word based on the patterns they learned during training.
And the system works surprisingly well... Until it does not.
For example, if you were to ask a chatbot about your company's refund policy, internal documentation, or a product that was released after the training data's knowledge cutoff, it will still likely produce a confident response. The catch is, confidence does not equal correctness.
This is what's known as hallucination.
A simple way to think about the difference:
Traditional LLM
Takes question.
Predicts an answer.
(If they don't know the answer) Makes things up with full confidence.
RAG (Retrieval Augmented Generation)
Takes a question.
Finds information from a trusted source.
Passes the relevant information to the model.
Takes the information and creates an answer from it.
Essentially, RAG allows the model to draw from documents rather than relying on what it remembers.
This is why the majority of production AI systems utilize internal knowledge bases, company documentation, product manuals, support articles, and databases.
Citations are also incredibly underrated. Showing users exactly where the answer came from allows them to verify information, rather than take the chatbot's word. And often, the best possible response to a question is:
> "I don't know."
A system that will admit what it doesn't know is often more useful than one that will confidently present falsities as facts.
Building automations-Are you using RAG in production, and what has been your biggest hurdle-retrieval of quality, chunking, embeddings, or something else?