AI Detector

Make AI text read
naturally for Originality.ai.

Originality.ai is aimed at SEO publishers, content agencies, and editors who need to vet large volumes of web writing. Here's how its scanning actually works, what its false-positive record looks like, and the honest version of what a humanizer can and can't do about it.

How Originality.ai works

Originality.ai runs content through an AI-detection model tuned aggressively for web writing and returns an AI-confidence percentage per scan, alongside a separate plagiarism check. It is built around a team dashboard so agencies and editors can scan, store, and review documents at scale. The percentage reflects how confident its model is that text was machine-generated.

False positives

Originality.ai markets a low false-positive rate, but independent tests still report false positives on human-written and lightly edited text, particularly content that reads cleanly or has been polished. Treat any single score as a signal, not a verdict.

Where we stand We measure every rewrite against Sapling's AI detector and show you the score, so you can see how natural the output reads. We do not claim to pass Originality.ai or any specific detector — their models change frequently and no humanizer can guarantee passage at every moment. What Humanizer does is rewrite the rhythm, word choice, and structure that detectors key on, and let you match your own voice.

What a rewrite actually looks like

Here's the same paragraph before and after Humanizer — the structure, rhythm, and word choice change, not just a few swapped synonyms. The percentage is Sapling's AI-likelihood estimate, shown on every rewrite. It's a signal, not a guarantee against Originality.ai.

Before/after on a sample paragraph. Scores are Sapling estimates and will vary by text — Humanizer never promises a clean pass on any detector.
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Humanize your text.
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Paste up to 1,500 characters, pick a mode, and get a real rewrite with an AI-detector score. No account, no card.

Or try a sample:
Your text0 / 1,500
Humanized — Casual

Your rewrite will appear here.

Free tool runs Claude Haiku, one pass. Pro (app & web) uses the stronger model with a detector-guided retry loop, longer text, and unlimited rewrites.

Humanize free — then get the app

Try the rewriter right here, no signup. Get the native Mac & iPhone app for unlimited rewrites, longer text, and the stronger model.

FAQ

Originality.ai questions, answered.

Originality.ai is designed to estimate whether text was machine-generated and returns an AI-confidence percentage. Its accuracy is contested and false positives are documented, so treat the percentage as a signal rather than proof.