Did AI Write It? LogoDid Write It?

Check a submission before it enters your queue.

Paste a freelance draft or guest post and get AI-detection signals, source overlap, and claim-by-claim fact checks on the same text.

3 free checks per day

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0 words ยท 150 words min, up to 500 free
The more words you check, the more reliable the result. Short text is more likely to produce a false positive or false negative.

A real detector, not a guess

Scores come from an established third-party detection service, not a homegrown scoring trick.

Sentence by sentence

You get the passages that carry the signal, not one number with no explanation.

Built for the next draft

Revise flagged passages, rescan with the same detector, and compare what changed.

A trail, not a claim

Every saved version records the result and changes without pretending a score proves authorship.

The three things that get a piece pulled after it ships.

A submission can fail in more than one way, and an AI score only catches the first. Every report here can run all three checks on the text you already pasted.

Generated filler

Copy that says very little in a confident voice. The report marks the exact sentences carrying the strongest signals, so you can cut or query them.

Borrowed passages

The plagiarism check returns matched sources with the overlapping text highlighted inline, so you can see what was lifted and from where.

Invented facts

The fact check pulls out individual claims and labels each one supported, partially supported, unverifiable, or refuted, with source links.

Questions

Do I have to run three separate tools?+

No. Run the AI-detection check, then add the plagiarism and fact checks to the same report without re-pasting the text.

How should I raise a flagged draft with a writer?+

Point at specific passages, not the overall result. A sentence-level report gives you something concrete to ask about, which is a far better conversation than an accusation built on a number.

What about writers who use AI as part of their process?+

Many do, and plenty of publications allow it with disclosure. The report is most useful for enforcing whatever policy you already have, because it shows you where the generated-sounding passages actually are.

How long can a submission be?+

A single AI-detection check takes up to 150,000 characters, which covers essentially any article-length piece. Plagiarism allows 120,000 and fact-checking 10,000, since the fact checker works claim by claim.

Keep reading

Put a submission through all three checks.

One paste covers AI signals, source overlap, and factual claims.

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