How to Fact-Check an AI Answer in Under Five Minutes

You do not need to verify every sentence an AI produces. You do need a fast, repeatable way to check the parts that would actually cost you marks if they were wrong.

Check the claims that carry weight

Prioritise anything a marker could look up: names, dates, figures, definitions, attributions and citations. General explanation is lower risk — if it is wrong, it is usually wrong in a way you would notice while reading.

Verify citations at the source

Search for the exact title in your library catalogue, on the publisher’s site, or in a scholarly database. If a paper only appears in the AI’s answer and nowhere else, do not cite it. Never cite something you have not opened.

Look for the primary source

If the answer tells you a figure, find who produced that figure. Statistics get garbled as they are repeated, and the original publisher usually gives you the definitions and caveats that make the number mean something.

Ask the model to argue against itself

“What is the strongest objection to what you just told me?” is a genuinely useful prompt. It will not catch every error, but it surfaces contested points that were presented as settled — which is exactly where an essay gets marked down.

Watch for confident vagueness

Phrases like “studies show”, “it is widely accepted” and “experts agree” are where unverifiable claims hide. If the answer will not name who, when and where, treat the claim as unsupported.