Three rewrite strengths
Light, Balanced and Aggressive, with six styles and six purposes, so the rewrite fits the text.
Free trial: 500 words. No sign-up needed.
You have a draft written with AI, and QuillBot AI Detector flags it. Here is how to rewrite it so it reads like you, then check it.
QuillBot describes its AI Detector as a free tool that checks text from ChatGPT, GPT-6, Claude and other models, with an AI score and sentence-level highlights. QuillBot separates fully AI-written text from human writing with some AI refinement, and its help center says paraphrased content can still be flagged. It cites a 99% detection rate from RAID evaluations.
RewriteMax rewrites how the whole text is written, its rhythm, structure and phrasing, instead of swapping single words, and leaves the decisions about meaning with you.
QuillBot says heavily paraphrased or lightly AI-edited content “is harder to detect for any AI checker,” though its help center says paraphrased text can still be flagged.
What QuillBot AI Detector says about itself on its own pages. We have not measured QuillBot AI Detector yet; our measured results are on the ZeroGPT page.
| Question | What QuillBot AI Detector says |
|---|---|
| Free use | Up to 1,200 words per scan and 6 scans a day |
| Paid plans | Premium removes word and scan limits; QuillBot's blog gives $8.33 a month on an annual subscription |
| Accuracy it claims | A 99% detection rate, citing independent RAID evaluations |
| Humanized text | Says heavily paraphrased or lightly AI-edited content is harder for any AI checker to detect |
| Languages | 20+ languages, including English, Spanish, French and Portuguese |
| Minimum length | 80 words; 300+ words give more reliable scores |
Light, Balanced and Aggressive, with six styles and six purposes, so the rewrite fits the text.
Check the rewrite on the same page; the detector uses ZeroGPT’s detection API.
Lock up to 20 names, terms or phrases, and keep quotes exactly as written.
We publish the method and results of our tests instead of a success-rate table.
A flag from QuillBot AI Detector can cost you time and credibility, even when the writing is yours.
Detectors misread human writing too; a 2023 study found seven detectors flagged non-native English essays as AI 61% of the time on average.
Turn a generic AI draft into writing that sounds like you and says what you mean.
Rewrite a whole draft in one pass instead of editing it sentence by sentence.
Check a rewrite before a client, editor or platform runs QuillBot AI Detector on it.
Detectors change often; a full rewrite does not rely on one detector’s current blind spots.
Use it where AI-assisted writing is allowed, and disclose AI help when required.
Rewrite AI-assisted drafts where your course allows it, and keep your drafts as a record.
Turn AI drafts into articles that read naturally and add real expertise.
Deliver copy you have reviewed line by line before a client checks it.
Keep a consistent, personal voice across AI-assisted posts.
Rewrite AI copy into your brand’s style and tone.
Keep terminology, hedges and citations exact while the phrasing becomes yours.
Make AI-assisted emails and reports direct and personal.
Make captions and posts sound like a person, not a template.
It is a free AI detector from QuillBot, a business of Learneo, Inc., which also owns Scribbr. QuillBot also sells a Paraphraser, an AI Humanizer and other rewording tools.
QuillBot says heavily paraphrased content is harder for any checker to detect, but its help center says paraphrased text can still be flagged and that its own Paraphraser is not designed to avoid detection. We have not tested the QuillBot AI Detector ourselves.
QuillBot claims a 99% detection rate, citing independent RAID evaluations, and says its model leans toward a human verdict when results are unclear. It says scores are signals, not verdicts, and that formulaic human writing can score higher than expected.
Yes. The free version allows up to 1,200 words per scan and 6 scans a day; Premium removes those limits, and QuillBot's blog gives its price as $8.33 a month on an annual subscription.
It should read more naturally, not less. Any automated rewrite can change wording or details, so compare it with your draft before you use it.
Essays, articles, blog posts, emails, reports and social posts each have a purpose setting, with six styles from academic to persuasive.
Yes. You can humanize up to 500 words free without an account, and the AI Detector is part of the same trial.
QuillBot AI Detector details checked on October 22, 2026 from: QuillBot AI detector, QuillBot help: paraphrased text flagged, QuillBot Premium price (blog). RewriteMax is not affiliated with QuillBot AI Detector or QuillBot (Learneo, Inc.).