Is my kid cheating with AI? How to tell, and what to do

First, the thing not to rely on

The instinct is to look for a detector, and there is a whole market happy to sell you one. The problem is that detecting AI-written text is a genuinely hard statistical problem rather than a solved one: these tools produce false positives on real writing — particularly on writing by children, by non-native English speakers, and on short, plain, formulaic text, which describes most of primary and middle-school homework. Several of the best-known ones have been withdrawn or quietly de-emphasised by their own makers for exactly this reason.

The cost of being wrong is not symmetrical, either. A false negative means you miss one instance. A false positive means you accuse your child of dishonesty over something they did themselves, which is expensive in a currency you cannot easily earn back — and it teaches them that the way to avoid suspicion is to write worse. So treat any detector score as one weak signal, never as evidence, and never open a conversation with it.

There is a second trap worth naming: the word “cheating” itself. It describes a decision to deceive, and most of what parents find is not that. It is a tired child taking the fastest available exit, or a child who genuinely believed the help was allowed, or a child who used AI exactly as permitted and simply produced better work than you expected. Leading with the accusation makes the three harmless explanations undiscoverable, because a child defending themselves stops supplying information.

The four checks, in order of how much they tell you

1. 1. Ask them to explain one part of it, out loud Thirty seconds, and it is the only check here that is close to decisive. Pick one sentence or one step and ask how it works, or why that answer is right. A child who did the work can answer and can handle one follow-up. A child who collected an output cannot, and the gap is unmistakable — not because they get it wrong, but because there is nothing underneath the words.
2. 2. Ask for a fresh one, in front of you For anything procedural — maths, grammar, conversions — this settles it. Write out one more of the same kind and ask them to do it with no tool and no notes. This is not a trap; say plainly that you want to see how it goes. If they can, the work is theirs or they learned it anyway, which for your purposes is the same thing.
3. 3. Read the work for a change in voice, not for quality Quality is a weak signal — children improve, and a good day happens. What is worth noticing is register: vocabulary they do not use, a structure they have never produced before, a confident summary of a book they have not finished, or a perfectly balanced "on the one hand" paragraph from a nine-year-old. Treat this as a reason to run check one, never as a finding on its own.
4. 4. Look at how long it took The weakest of the four and still worth a glance. Twenty minutes of homework that reliably used to take an hour is not proof of anything — some tools genuinely make a child faster, which is the point — but combined with an empty explanation it is informative. On its own it is just as likely to mean they finally understood it.

What you find is usually one of four things

• They did not know it was off-limits — The most common answer and the one parents are least prepared for. “Don’t cheat” is not a rule about AI; it is a rule that assumed a world where help had a speed limit. If nobody has told your child that asking the AI to write the paragraph is different from asking it to spell-check the paragraph, they have not broken a rule — they have found a gap in one.
• They got stuck and panicked — Second most common. The homework was pitched above where they are, it was late, and the tool offered a way out. The finding here is not dishonesty, it is a skill gap plus bad timing, and the thing to fix is the gap. Punishing it reliably buys you better concealment next time rather than more learning.
• It is a habit now — The one that matters. No single evening created it: the tool is faster than thinking and it is available at exactly the moment thinking gets hard, so the first move drifts from attempting to asking. This is worth real attention, and it responds to changing the order of the evening far better than to a ban.
• They did the work and you were wrong — This happens, and it is the reason to run the checks before the conversation. A child who is accused of cheating on work they did learns something durable from it, and it is not the lesson you wanted. If this turns out to be the answer, say so out loud and specifically — "I got that wrong" is cheap for you and worth a lot to them.

What to do, by what you actually found

The response that works depends entirely on which of the four it was. One response for all four is how a solvable skill gap turns into a concealment problem.

The conversation that works

Two openings, same evening, very different outcomes. “Did you use AI to write this?” is a yes-or-no question with an obvious right answer, so you have asked a child to choose between a lie and a punishment and you will usually get the lie. “Show me how you did question four” is not answerable by guessing, is not accusatory, and produces the information you were actually after in about thirty seconds.

The frame that holds up over time is not honesty, it is self-interest, and it is true: the point of homework is the practice, so handing the practice to a machine means paying the time and getting nothing for it. Children find that argument reasonable far more often than adults expect, because unlike most homework arguments it is not about obedience. It also happens to be the argument that keeps working when you are not in the room, which is the only kind worth installing.

Then make the rule specific enough to follow. “Don’t use AI to cheat” is unenforceable because it names no behaviour. “You can ask it to explain, to give you a hint, or to check your spelling. You can’t ask it to write your sentences or do the steps for you. If you’re not sure, ask me and we’ll decide together” is a rule a ten-year-old can actually apply at half past eight. Write it where the homework happens. The written version is doing most of the work.

Where the line sits, subject by subject · The four checks that tell you what a session was

What a tool should be doing about this, and what ours does

Every check in this guide exists because the software your child uses was not built to care whether the thinking happened. A tool that was would not need a parent to run an oral quiz at half past eight, and it is worth knowing what that looks like, because it is the standard to hold any kid-facing AI product to — including ours.

Three properties do the work. Restraint that is enforced rather than requested: a limit held in code cannot be talked out of by a persistent child, and a limit written into a prompt can. Credit that is not given for hinted answers: a tool that counts a right answer which followed a hint as mastery will tell you your child has learned something they have not. And a record of skills rather than a log of messages: a transcript tells you what was typed, which is the raw material and not the answer.

How Luchi answers those, stated no more strongly than is true. Homework help comes as hints first and a worked example only after two of them, and the two-hint limit is held in code — full answers are off unless a parent turns that on. A hint stays closed until a separate blind check says it does not give the answer away. Every question is tagged to one of 1,632 K–8 skills. A right answer that followed a hint is not counted as proof; it only nudges the estimate, and a skill counts as mastered only after right answers on three separate days, which is a bar that collected answers do not clear. Fifteen common wrong rules are known by name, so a careless slip on a strong skill is told apart from a real gap, and the same mistake three times in two weeks is coached as a habit rather than marked wrong again.

What none of this does is detect cheating, and we are not going to claim it. There is no score in the app that says your child was dishonest, because the underlying detection problem is not solved and a confident number here would be worse than silence. What the record does instead is make the question less necessary: if a skill only counts as mastered after right answers on three separate days with no hints, then the record stops reflecting work your child did not do — not by catching them, but by not crediting it in the first place.

One caveat on everything cited here, the same one our method page makes: both the detector findings and the learning results behind hints-before-answers are research on the methods, not on our product. None of it is a study of Luchi, and none of it promises a particular result for your child.

How Luchi teaches — and the research under each part

Questions parents ask

Can teachers tell if a kid used AI?

Sometimes, and mostly not by using a detector. What teachers actually notice is a mismatch between a child’s work and the child they teach — a register, vocabulary or structure that does not match in-class writing. Many schools have moved to in-class writing, oral defence, or drafts-and-revisions precisely because the detection route proved unreliable. If a teacher raises it with you, ask what specifically they noticed rather than what the tool scored.

Are AI detectors accurate?

Not accurate enough to act on for an individual child. They produce false positives on short, plain, formulaic writing and on writing by children and non-native English speakers, which covers most school homework, and some of the best-known ones have been withdrawn or de-emphasised by their own makers. Use one as a prompt to look more closely if you like, never as a finding. The oral check costs thirty seconds and is far more informative.

What are the signs my child is using AI to do their homework?

The only reliable one is that they cannot explain what they handed in. Everything else — a jump in quality, unfamiliar vocabulary, suspicious speed, a flawless structure — is a reason to run that check, not a conclusion. Children do improve, and a good day does happen. Lead with “show me how you did this” and let the explanation decide it.

Should I punish my kid for using AI on homework?

Usually not, and the reason is practical rather than soft. In three of the four cases above the finding is a rule gap or a skill gap, and punishment addresses neither while reliably buying better concealment. Redo the assignment, write the rule down together, and fix the skill if that was the problem. Save a real consequence for repeated deception after a clear rule existed — which is a much rarer situation than the search results suggest.

How do I stop my kid using AI for homework?

Stopping it is both unlikely to work and probably the wrong goal — they will use AI for the rest of their lives and the skill is using it well. What does work is changing the order and the tool. Attempt on paper for two minutes before anything else, explain one answer back at the end, homework in a shared room, and a tool that withholds answers by default. That combination removes most of the opportunity without a ban you cannot enforce.

My kid says everyone in their class does it. Is that true?

Quite possibly, in some form, and it is not the argument it sounds like. The useful reply is not about fairness but about what they are each getting: a classmate who hands in AI work has paid the same evening and learned nothing, and the gap shows up at the next test for them and not for your child. That is a concrete claim rather than a moral one, and children tend to find it more persuasive.

A record that only counts what they actually learned

Luchi gives hints, not answers — a worked example only after two hints, and full answers off unless a parent turns that on. A right answer that followed a hint is not counted as proof, and a skill counts as mastered only after right answers on three separate days.

Get on the list

How Luchi teaches

Part of the series: How to end the daily homework battle

Related guides in this series

• Teaching kids to start homework without reminders — Independence is a prompt you remove on purpose, not a trait you wait for. A five-rung ladder from "you say it daily" to "you only ask afterwards", with how long each rung takes.
• Seven practical homework focus strategies — Seven things that help once they have started, in the order worth trying them — plus an honest table of which rest on solid evidence and which do not.
• What parents should know about AI homework helpers — Unguarded AI help measurably lowered later unaided test scores; guardrails removed the harm. What is known, what is not, and five questions to ask any product.
• AI homework help for kids — Where the line sits between help and doing it for them, subject by subject — plus a five-step routine for one hard question and five questions to ask any homework product.
• The after-school hour, without the nagging — The fight is about the forty minutes before homework. A five-block plan, the four traps that turn a routine back into nagging, and the research that makes it work.