AI glossary

What Is Hallucination?

When an AI system produces an answer that sounds confident but is unsupported, inaccurate, or invented.

Why it matters

Hallucinations matter for anyone using AI in research, customer support, healthcare, law, finance, or business decisions.

Where you will see it

You will see Hallucination discussed in AI news, product launches, model updates, workplace tools, developer platforms, and company strategy. Understanding the term helps readers judge what changed and whether it affects their work, customers, or daily tools.

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What Is Hallucination? Plain-English AI Guide