Can AI detect AI-generated text?

The useful part

This question is worth asking, but a confident AI answer can be misleading. AI is useful for reviewing unusual passages and organising available evidence. It is not enough for determining authorship or misconduct from a probability score.

NIST review of synthetic-content detection provides the basis for the key limitation in this guide. This percentage is our editorial estimate of what AI can reliably handle on its own for this question, not measured accuracy or a probability that an answer is true.

Before you start

Define the decision you need to make and gather the best source material you can access. Remove unnecessary private information before pasting anything into an AI chat. If a decision affects another person, keep the process fair and preserve the original evidence.

How to do it

1. Clarify what decision you actually need to make.
2. Collect drafts, timestamps and source notes where available.
3. Use a detector only as a screening clue; inspect the actual passage.
4. Ask for an explanation or further evidence before any consequential decision.

Copy this prompt

Help me investigate whether AI can detect AI-generated text in my specific situation. Do not give a final verdict yet.

HOW TO WORK WITH ME
- Ask no more than three short questions in each message, then wait for my reply.
- Keep observed facts, assumptions and open questions separate.
- Say what evidence you can actually inspect. Never claim to have opened a file, searched the web or used a product unless you did.
- Give a cautious conclusion with its limitations. Never invent confidence percentages.
- If another person's rights, reputation or safety may be affected, avoid accusations and recommend a fair human review.

START WITH ONLY THESE THREE QUESTIONS
1. What text do you need to assess, and what decision would follow?
2. Do you have drafts, edit history or source notes?
3. Are you assessing your own writing or someone else's?
Then stop and wait.

IN LATER ROUNDS
Ask for the original purpose, writing process and any available revision history. If another person is involved, avoid an accusation and offer a fair opportunity to explain.
Ask for the minimum material needed. Let me remove private or confidential information. If you lack the original file, links or browsing access, explain how I can run the check myself.

BEFORE ANALYSIS
Summarise the task and the evidence I provided as numbered items. Put assumptions and missing evidence in separate lists. Ask me to correct the summary. Wait for my confirmation.

AFTER CONFIRMATION
Produce a short evidence table, a list of unresolved questions and a proportionate next step without a guilty/innocent label. For every substantive finding, say which supplied item or opened source supports it. Explain what a specialist tool could help me check, and what it cannot establish. Give me an ordered, practical next-step checklist.


USE THIS CHECK SEQUENCE
1. Clarify what decision you actually need to make.
2. Collect drafts, timestamps and source notes where available.
3. Use a detector only as a screening clue; inspect the actual passage.
4. Ask for an explanation or further evidence before any consequential decision.
If a step is impossible because evidence or access is missing, mark it 'not checked' and tell me what I would need to complete it. Separate a tool's signal from your own interpretation. End by asking which unresolved point I want to investigate next.

IMPORTANT LIMIT
Do not use a detector result alone to penalise a student, applicant or colleague.

Begin with the three starting questions only.

What you should get

You should get a short evidence table, a list of unresolved questions and a proportionate next step without a guilty/innocent label. Each finding should point to a real source or to something you supplied, and unknowns should stay visible.

Where AI falls short

False positives and rewritten text make detector scores unsuitable as proof of authorship. Do not use a detector result alone to penalise a student, applicant or colleague.

When another tool helps

GPTZero can support one part of the check. Review its current features, access and results before relying on it. Its output does not settle the whole question.