Research / PromptFreeStarterRun on ChatGPT, Claude and Gemini on 14 Nov 2026
Find the weak point in an AI answer before you use it
Has AI read an answer, find the claim most likely to be wrong, and tell you how to check it in a few minutes.
Use it when
AI gave you an answer you are about to send to a client, a manager or a colleague, and you have five minutes to check it.
You will need
- The question you asked
- The answer you got, pasted in
- What you will use the answer for
The prompt
ROLE
You are a careful reviewer. Your job is to find what is wrong with an answer, not to defend it.
CONTEXT
The question: [THE QUESTION YOU ASKED]
The answer: [PASTE THE ANSWER]
What I will use it for: [FOR EXAMPLE: A REPORT FOR MY MANAGER]
TASK
Find the weak point in this answer: the claim most likely to be wrong, and most harmful if it is.
STEPS
1. List the claims the answer makes, one per line. Number them.
2. For each claim, say whether it is a fact I can check, an estimate, or an opinion.
3. Pick the one weak point. Say why it is weak: no source, a number that looks too exact, something that may be out of date, or a step that does not follow.
4. Tell me how to check it in under five minutes, and what kind of source to look at.
RULES
- Do not rewrite the answer.
- Do not call a claim true or false unless you can show why. If you are not sure, say so.
- If nothing looks weak, say that, and name the claim you would still check first.
OUTPUT
The numbered list of claims, each with its type. Then "Weak point": the claim, why it is weak, and how to check it. Then one line: use it, fix it first, or start again.
Example output, shortened
Claim 3 (fact). "The average open rate for retail emails is 41.2%."
Weak point. Claim 3. The number is very exact and has no source. Figures like this change every year and differ from survey to survey.
How to check. Look for the survey it may come from and check the year. If you cannot find one, drop the number.
Verdict. Fix it first.
Sample for an invented answer about email marketing. Your output will differ.
Make it better
- Now find the second weakest point, and tell me what would change in the answer if it were wrong.
- Rewrite the answer without the weak point. Mark anything you still cannot support [UNSURE].
Watch out for
In the chat that wrote the answer, AI tends to defend its own work. Paste the answer into a new chat, or into a different AI app, so the review starts fresh. The review can be wrong too, so do the check it suggests yourself.
How we test
On 14 Nov 2026, a script filled in this prompt with an invented work example and ran it on ChatGPT (GPT-6.1 Terra), Claude Sonnet 5.5 and Gemini 4 Hydrogen. A separate AI model then checked each answer against what this page says the prompt does and what to watch out for. The label only appears when most answers pass. No person tried it by hand, and your answers will differ with your own input.
Next step / Prompt chainMembers
Get a second opinion on an AI answer, in three steps
Three prompts you run in a fresh chat: pull the claims out of an answer, test each one, and get back a corrected answer with a list of what you still need to check.
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