Fusion42 knowledge base
Why Arthur won't make things up
The obvious question about any AI that claims to know your company: why won't it make things up?
Fair question, because we watched it happen. An early version of Arthur kept a running summary of each company, written by a model. One day it stated, with complete confidence, that a company was incorporated in a jurisdiction it had never touched. No data said so — the model completed a plausible pattern, because that is what models do. We wrote rules against it. The rules failed.
So we stopped asking the model to remember anything important. Arthur keeps the facts of your company separately from the AI, in a record where every entry is dated and traceable to something real: a document you uploaded, a thing you said, a result that happened. Arthur cannot invent your company's history because it never owns that history in the first place. And when new information contradicts the record, the conflict is put in front of you to settle, not quietly papered over.
The parts that judge you are deterministic: same inputs, same answer, and you can inspect the reasoning. A chatbot cannot tell you why it said something. Arthur can show you.
Verified 14 July 2026 · Sources: Fusion42 review