Why does AI lie? Hallucinations explained simply

In the previous post , I showed you an AI doing something genuinely useful, helping me adapt a recipe for a dinner party. We talked about the basic loop: send a prompt to a foundation model, get a response. Today we're talking about why AI lies to you. You know how AI sounds confident when it's completely wrong? It's called hallucination , and it's the thing that'll either make you trust AI long-term, or burn you badly. The demo: same question, two models I asked two different models the same qu