What is a business AI assistant?
It is an assistant that answers from your own documents, not from general knowledge picked up on the internet. You ask it a question in plain language — "what is the penalty clause in the Dupont contract?", "what lead time did we quote on quotation 2024-118?" — and it finds the passage concerned, quotes it, and says which document it came from.
Technically it is retrieval-augmented search: the relevant content is found in your files, then handed to the model that writes the answer. The practical consequence matters: the assistant only knows what you have given it, and it can always say where its answer came from.