# AI hallucination

> An AI-generated statement that sounds plausible but is false, unsupported or inconsistent with the available source material.

## What it means

Neutral definition: a language model stating something false or unsupported with confidence; why it happens in plain terms (it predicts likely text rather than looking facts up). a university library guide). How to check an answer — sources, quotes, numbers — with a link to /blog/check-ai-answers rather than repeating it.

## A practical example

An answer supplies a convincing publication title that does not exist. Checking the citation before using it catches the error.

## Put it into practice

- Name the concrete situation before applying the label. AI hallucination is useful only when it changes a choice, boundary or next action.
- Make the state visible: write the owner, time, source or stopping condition down instead of relying on memory.
- Review what happened. Keep the part that reduced ambiguity and change the part that added ceremony without helping the work.

## How it relates to Plexii

Plexii answers from your own work with sources you can click to check (/help/ai-assistant). Keep the tone neutral and practical.

## Sources

- [NIST AI 600-1: Generative AI Profile](https://doi.org/10.6028/NIST.AI.600-1)