A chatbot answers questions in a chat window, on WhatsApp or inside your product. On its own, a language model does not know your business. Retrieval-augmented generation (RAG) solves that: when someone asks a question, the system first searches your own documents, help articles or product data, then asks the model to answer using only what it found.
The answer can show its sources, and the bot can say "I am not sure" and pass the conversation to a person. We also test the bot on a set of real questions before launch, so quality is measured rather than assumed.