Detectors flag human essays. Ours flagged 9 out of 250 human-written samples in our own testing, and 4 out of 50 written by non-native English speakers. If that has happened to you, the position is defensible. This page is about the evidence that defends it, and how to keep it before you need it.
A detector compares your text against the statistical shape of machine-written text. The closer the match, the higher the score. Nothing in that process looks at who wrote it, so the writing habits that raise your score are the same ones your rubric usually rewards.
Writing where every sentence lands at a similar length reads as low variation, and low variation is one of the two main signals. Students trained toward clean, uniform paragraphs produce exactly this.
Choosing the expected word every time is good academic practice and also the definition of low perplexity. Second-language writers are hit hardest here, because caution with vocabulary is a learned, sensible strategy that happens to look machine-generated to a classifier.
Accepting most of a grammar tool's rewrite suggestions smooths out precisely the irregularity the detector reads as human. Your voice gets sanded off, and the score goes up.
Five-paragraph templates, standard lab-report scaffolding, a rigid intro-body-conclusion shape. Predictable structure plus predictable vocabulary is the combination most likely to produce a false flag. More on this in why your writing gets flagged as AI.
Do not tidy up your drive. Export the Google Docs version history, save every draft file, screenshot your browser and library history for sources. Evidence you delete cannot be recovered later.
Ask, politely and in writing, which tool was used, what score it returned, and whether anything other than that score supports the claim. Many cases rest on one number, and one number is contestable.
Lay out when you started, when each section appeared, what you cut. A revision history over nine days is the single most persuasive thing you can show, because generated text has no history.
Volunteer to discuss your argument, your sources and your choices. If you wrote it, this is easy and it settles the matter faster than any document. Use your institution's appeals process and its student advocate.
You are not arguing that the tool malfunctioned. You are pointing out what the tool measures and what it does not. Detectors report a statistical similarity. They have no access to authorship, and their published false positive rates, ours included, are not zero. That is a reasonable, factual position and it does not require you to attack anyone.
The step-by-step version, with wording you can adapt, is in how to prove you wrote your essay and how to prove you did not use AI on an essay.
Google Docs or Word online. The revision timeline builds itself while you work and is the strongest evidence available, at zero effort. Never draft somewhere that leaves no trace.
Do this oneBefore you run a grammar tool over a paper, save a copy. If the edited version scores high, the unedited one shows how much of the smoothing was not yours.
Two minutesA specific seminar exchange, your own worked example, the source you rejected and why. Specificity lowers the score and improves the essay for the same reason: a model cannot produce it.
Helps the grade tooIf a passage scores high, read it. Usually it is the section where you were tired and wrote generically. Rewriting it in your own voice is the fix, not adding noise.
Before you submitThe pieces students actually come back to.
Sign up free and your starting credits cover a scan. You get a score, the sentences behind it, and a clear read on which passages lost your voice.
Scan your essay freeFree credits on signup · No card required · Up to 50,000 characters per scan, about 8,000 words