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How to check your essay for AI flags before you submit

By the ScribeLens Team ·

The short answer: paste or upload your near-final draft into ScribeLens, open the sentence-by-sentence view, and read which sentences are marked AI-like and why. Then revise those sentences with your own detail and reasoning, and keep your drafts as a record. It is the same instinct as proofreading, applied to how your writing reads at the pattern level. This guide covers each step, what a flagged sentence means, and how to turn the result into a clearer essay in your own voice.

What does a check before you submit show you?

A self-check shows how your draft reads at the pattern level while it is still yours to revise. AI writing leaves measurable patterns: uniform sentence rhythm, predictable word choice, and formulaic structure. ScribeLens detects those patterns and shows them to you sentence by sentence.

You get three things. First, a graded overall verdict: likely human-written, mixed signals, a blend of human and AI writing, substantial AI involvement, or strong signs of AI writing. Second, every sentence marked human-like, mixed, or AI-like and highlighted in your document. Third, reason keywords on flagged sentences that name the pattern behind the flag, such as even sentence rhythm or a generic transition.

The report also says which detector version scored it. The live one is Detector v4.0, retrained in October 2026 on real student essays and on essays by non-native English writers.

How do you check your essay, step by step?

Use your near-final draft, so the check reflects what you plan to hand in. ScribeLens is built for English text; results on other languages are not reliable.

  1. Paste your text or upload the file. ScribeLens accepts PDF, DOCX, TXT, and Markdown
  2. Pick the scan that fits your essay. Without an account you can scan 2,000 words at a time, up to 3,500 words a day. With a free account you can scan a whole essay or paper in one pass, within a 35,000-word monthly allowance
  3. Leave your reference list in. References and citations are excluded from scoring automatically and still shown in the report
  4. Read the sentence-by-sentence view before the overall verdict. It shows where a signal sits, not just how strong it is
  5. Open the reason keywords on each flagged sentence to see which pattern was picked up
  6. Revise the flagged sentences with your own detail and reasoning, then scan the revised draft to see how it reads now
  7. Export the report as a PDF or DOCX if you want a record. Free accounts include 9 exports a month

What does a flagged sentence mean?

A flagged sentence shows patterns that are common in AI writing. That is evidence about how the sentence reads. It is not proof of how it was written, and it is not a judgement of you.

The reason keyword tells you what to look at. Even sentence rhythm means several sentences in a row have a similar length and shape. A generic transition means a stock connector is doing the work that a specific link between two ideas should do. A repeated hedge phrase means the same cautious wording keeps coming back.

Look at where the flags sit. A few flagged sentences in one paragraph point you to that paragraph. Flags spread across every page point to a habit worth fixing throughout. A sentence marked mixed carries a weaker signal, so give it a quick read before you decide whether to change it.

Every report includes a note headed "How to use this result". It explains that the report is evidence to confirm with what is known about the writer. Read your own result the same way.

How do you revise a flagged sentence so it is clearer?

Revise for your reader. The aim is a clearer essay that sounds like you, not a different number. The changes that help are the ones a good editor would ask for anyway.

Leave out surface edits such as swapping synonyms or running the text through a rewriting tool. They do not make the writing clearer, and they leave you with an essay that is harder to explain. If AI tools were part of your process, check your course policy on disclosure. A self-check does not replace it.

Why keep your drafts as a record?

Your drafts show how the essay developed. Keep your outline, your notes, and your earlier versions. Version history in Google Docs or Word does this for you if you write in one file.

If anyone later asks how you wrote the essay, that record lets you show your process. An exported ScribeLens report can sit alongside it. The PDF includes a built-in "How to read this report" guide, so a teacher or supervisor can read it without an account.

What should you keep in mind about the result?

A ScribeLens scan shows ScribeLens's own sentence-level evidence. It does not predict what your school's tool will report, and it does not change that result. Detectors are built differently and can read the same text differently.

A result is a probability, not proof, in either direction. ScribeLens does not check for plagiarism. A favourable result also does not replace any disclosure your course requires.

Bottom line

If you take one thing from this:

Frequently asked questions

Does checking my essay here change what my school's detector will say?

No. A ScribeLens scan does not alter or predict any other tool's result. It shows you ScribeLens's own sentence-level evidence on the draft you are about to submit.

Should I edit my essay just to change the result?

No. Revise flagged sentences to make them clearer: add your own detail, show your reasoning, and cut stock phrasing. That improves the essay whatever any tool reports, and it is what this check is for.

How much of my essay can I check at once?

Without an account, you can scan 2,000 words at a time, up to 3,500 words a day. With a free account you can scan a whole essay or paper in one pass, within a 35,000-word monthly allowance.

A sentence got flagged. What should I change?

Start with the reason keyword. It names the pattern, such as even sentence rhythm or a generic transition. Then revise for clarity: add a specific detail, explain your reasoning, or vary the structure. Scan the revised draft to see how it reads now.

Do I need to remove my reference list before I check my essay?

No. Reference lists and citations are detected and left out of scoring automatically. They still appear in the report, but they never affect the verdict.

Can I keep a copy of the result?

Yes. With a free account you can export the report as a PDF or DOCX, up to 9 exports a month. Keep it with your drafts and notes as part of your record.

Check your draft before you submit it

Paste your essay and read the sentence-level evidence and reason keywords behind the result before you hand it in. Free, no signup required for a quick check.

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