Is your text flagged as AI?
Paste your text below for an instant AI-probability score with sentence-level highlighting. If it's flagged, humanize it in one click — your meaning intact.
5 free checks/day · up to 300 words each · sign in for the free-trial version or get a subscription for more & longer text.
● Detection engine last updated: August 19, 2026
How this AI detector works
This tool scores your text with a professional-grade detection engine — the same class of detector universities and publishers actually use. The percentage is the model's estimate that the text was AI-generated — it measures statistical patterns like predictability and sentence uniformity, not a banned-word list. A high score is not proof of anything, but it is what a grader's software will see. Learn the mechanics in how AI detectors actually work.
Flagged? Our AI humanizer restructures the sentence patterns detectors key on — not just swapping synonyms — and shows you a fresh score plus a meaning-preservation check on every rewrite. The first 5 rewrites are free — no credit card needed.
Frequently asked questions
Is this AI detector really free?
Yes. You get 5 free checks per day of up to 300 words each, with no account and no credit card. Signing in unlocks the free-trial version of the full app; a subscription removes the daily cap and accepts longer text.
How accurate is this AI detector?
It uses a professional-grade detection engine — the same class of detector universities and publishers use. Like every AI detector, the score is a statistical estimate, not proof: it measures predictability and sentence-uniformity patterns, so treat a high score as what a grader’s software will likely see rather than a verdict.
Which AI models can it detect?
Text from any major model — ChatGPT, Claude, Gemini, Deepseek, Llama, and others. Detection keys on the statistical patterns all large language models share, not on any single model’s vocabulary.
What should I do if my text is flagged?
Click “Fix it — Humanize this text” and the flagged text is carried into the AI Rewriter app, which restructures the sentence patterns detectors key on and shows a fresh AI score plus a meaning-preservation check after every rewrite. The first 5 rewrites are free — no credit card needed.
Is my text stored?
No. Your text is scored and returned to you directly; only anonymised usage analytics are stored, never the text itself.