Three rewrite strengths
Light, Balanced and Aggressive, with six styles and six purposes, so the rewrite fits the text.
免费试用 500 词,无需注册。
You have a draft written with AI, and Merlin flags it. Here is how to rewrite it so it reads like you, then check it.
Merlin describes its AI detector as a tool that scans writing for the signs of machine-generated language and flags suspicious passages. Merlin says it benchmarked its checker on human, AI and blended samples and that it can flag paraphrased text. It also says detectors struggle with content that is short, highly creative or paraphrased to avoid detection.
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.
Merlin says its tool identifies text that is AI-generated, paraphrased or human-written, but also that “smart paraphrasing can still trick detectors”.
What Merlin says about itself on its own pages. We have not measured Merlin yet; our measured results are on the ZeroGPT page.
| Question | What Merlin says |
|---|---|
| How it works | Paste up to 30,000 characters or upload a file; it flags suspicious passages |
| Paid plans | Part of Merlin's sitewide plans; Pro is billed $228 a year |
| Accuracy it claims | No figure; says case studies, not cited, found it more accurate than Quillbot and Turnitin |
| Humanized text | Says it identifies paraphrased text, but that “smart paraphrasing can still trick detectors” |
| Models it names | ChatGPT, GPT-4o, GPT-4 and Google Gemini |
| Languages | “128+ language support” |
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 Merlin 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 Merlin 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.
Merlin's AI detector is part of Merlin, a set of 70+ AI tools from Foyer Tech Inc. It flags passages that look machine-generated.
Merlin says it can identify paraphrased text, but also that smart paraphrasing can still trick detectors and that paraphrased content is harder to catch. We have not tested Merlin ourselves.
Merlin publishes no accuracy figure. It says case studies found it more accurate than Quillbot and Turnitin, and warns that no system is 100% accurate and false positives do occur.
Yes. Merlin sells an AI humanizer that is free once, then paid, with 150,000 characters a month on Lite and 250,000 on Pro. It works in English only.
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.
Merlin details checked on October 22, 2026 from: Merlin AI detector, Merlin pricing, Merlin AI humanizer. RewriteMax is not affiliated with Merlin or Foyer Tech Inc..