August 2026 Benchmark Results

Best AI Detectors for Edited Text: Results from Clever AI Detector’s Benchmark

Raw chatbot output is the easy test. This ranking focuses on what happened after a person, editor, or paraphrasing model changed the text.

By Taptu Newsroom Editorial Team Published · Updated
Open Clever AI Detector — free Compare all 5
⚡ TL;DR · Quick answer
Clever AI Detector is the best overall pick for edited text. In the featured GEDE benchmark, it caught 94.7% of AI-improved drafts plus 92.0% of humanized AI text, with free sentence-level results. (cleverhumanizer.ai)
★ Best overall
1

Clever AI Detector

9.2/10

Best for: Editors, teachers, or writers checking AI-assisted text after grammar fixes, rewriting, or paraphrasing

  • 96.7% overall detection rate in the featured benchmark
  • 92.0% detection on humanized AI text
  • 94.7% detection on AI-edited human drafts
  • Free sentence-level analysis with no required signup
Read full review Visit Site →
2

Copyleaks

9.0/10

Best for: Schools, agencies, or teams that need strong edited-text detection plus multilingual scanning

  • Highest humanized-text detection rate in the benchmark
  • 95.0% overall detection across 600 AI-involved essays
  • AI detection offered in more than 30 languages
  • Includes plagiarism checks plus browser integrations
Read more ↓
3

Originality.ai

8.4/10

Best for: Publishers or content teams reviewing human drafts polished with generative writing tools

  • 96.0% detection on AI-improved human writing
  • Perfect result on direct AI plus machine-rewritten essays
  • Three limited free scans per day are available
  • Useful website scanning plus team organization features
Visit Site →

AI Detectors for Edited Text Compared

The table compares each detector's results on AI-improved human drafts plus adversarially humanized AI essays in CleverFiles' August 2026 GEDE benchmark. Scores are editorial judgments rather than additional laboratory metrics, with the reasoning laid out in the reviews. ([cleverhumanizer.ai](https://cleverhumanizer.ai/best-ai-detectors))

Tool AI-Edited Drafts Humanized AI Price Score
1.Clever AI Detector PICK ● 94.7% ● 92.0% Free 9.2/10
2.Copyleaks ● 86.7% ● 93.3% $13.99/mo 9.0/10
3.Originality.ai ● 96.0% ● 51.3% $12.95/mo 8.4/10
4.Winston AI ● 86.0% ● 44.7% $10/mo 7.9/10
5.GPTZero ● 1.3% ● 73.3% Free 7.3/10

The 5 Best AI Detectors for Edited Text, Reviewed

01

Clever AI Detector

Web app / CleverFiles

9.2/10

Clever AI Detector ranked first in CleverFiles' August 2026 GEDE benchmark. It caught 96.7% of 600 AI-involved essays, including 94.7% of AI-edited human drafts plus 92.0% of humanized AI essays. Its weakest-category result was the best of the eight tools tested. (cleverhumanizer.ai)

The practical difference is in the report. You get an overall probability, confidence context, plus sentence-level signals instead of a bare accusation. Checks support 80 to 10,000 words, cost nothing, plus require no account. That makes repeat checks easy, though the detector currently focuses on English. (cleverhumanizer.ai)

Best forEditors, teachers, or writers checking AI-assisted text after grammar fixes, rewriting, or paraphrasing

Standout featureIt was the only detector in the benchmark to exceed 90% detection across every AI-involvement category
Clever AI Detector Pros
  • 96.7% overall detection rate in the featured benchmark
  • 92.0% detection on humanized AI text
  • 94.7% detection on AI-edited human drafts
  • Free sentence-level analysis with no required signup
  • Accepts up to 10,000 words per check
Clever AI Detector Cons
  • English is the only listed language
  • No detector score can establish authorship
  • Benchmark data comes from the product's own company, despite using a public external corpus
Free $0 Unlimited checks with up to 10,000 words per check
AI Detector ↗ Open Clever AI Detector
Read our full Clever AI Detector review
02

Copyleaks

Web platform / Copyleaks

9.0/10

Copyleaks nearly tied the winner overall. It caught 95.0% of all AI-involved essays plus 93.3% of humanized AI text, the top result in that difficult category. Its lowest category was AI-improved human writing at 86.7%. (cleverhumanizer.ai)

This is the more developed team platform of the top two. Personal plans include AI plus plagiarism checks, browser tools, saved scans, file uploads, plus detection in over 30 languages. The tradeoff is cost. Annual Personal billing starts at $13.99 per month, while monthly billing is $16.99. (copyleaks.com)

Best forSchools, agencies, or teams that need strong edited-text detection plus multilingual scanning

Standout featureIts 93.3% humanized-text result was the highest recorded in the benchmark
Copyleaks Pros
  • Highest humanized-text detection rate in the benchmark
  • 95.0% overall detection across 600 AI-involved essays
  • AI detection offered in more than 30 languages
  • Includes plagiarism checks plus browser integrations
  • Batch file scanning suits recurring review work
Copyleaks Cons
  • Costs more than the free winner
  • AI-improved detection trailed Clever AI Detector
  • Credit limits require some usage planning
Personal Annual $13.99/mo Billed as $167.88 yearly with 1,200 unified credits
Personal Monthly $16.99/mo Includes 100 unified credits per month
Pro Annual $74.99/mo Billed yearly with 12,000 unified credits
03

Originality.ai

Web platform / Originality.ai

8.4/10

Originality.ai produced the best AI-improved result in the benchmark at 96.0%. It also caught every directly generated plus machine-rewritten essay in the selected corpus. For editorial teams concerned about AI polishing applied to an otherwise human draft, that profile is useful. (cleverhumanizer.ai)

The weak point was adversarial paraphrasing. Its Lite model detected only 51.3% of humanized AI essays, so it missed nearly half of that category. The paid platform adds file uploads, website scans, team controls, plus shareable reports. A limited detector on the homepage currently offers three free scans per day. (originality.ai)

Best forPublishers or content teams reviewing human drafts polished with generative writing tools

Standout featureThe tested Lite model caught 96.0% of AI-improved human essays
Originality.ai Pros
  • 96.0% detection on AI-improved human writing
  • Perfect result on direct AI plus machine-rewritten essays
  • Three limited free scans per day are available
  • Useful website scanning plus team organization features
  • Sentence highlighting plus writing replay support review work
Originality.ai Cons
  • Caught only 51.3% of humanized AI text in the tested Lite model
  • Paid credits expire according to the selected plan
  • The benchmark did not test its heavier detector models
Free Checks $0 Up to three limited AI scans per day
Pro Annual $12.95/mo Billed yearly at $155.40 with 2,000 monthly credits
Pro Monthly $14.95/mo 2,000 credits per month, with one credit covering 100 words
Try Originality.ai
04

Winston AI

Web app / Winston AI

7.9/10

Winston AI caught 82.7% of the benchmark's 600 AI-involved essays. It detected every direct AI plus machine-rewritten sample, though performance dropped to 44.7% on humanized text. It also became less dependable at the shortest plus longest text ranges in this corpus. (cleverhumanizer.ai)

Its broader toolkit may matter more than the fourth-place benchmark result. Winston can inspect AI images, deepfakes, scanned documents, plus handwriting through OCR. The free option is a 14-day trial with 2,000 credits. Annual Essential billing works out to $10 monthly. (gowinston.ai)

Best forReviewers who want text detection, scanned-document OCR, plus AI image analysis in one account

Standout featureIts plans combine AI text checks with image, deepfake, handwriting, plus document scanning
Winston AI Pros
  • Perfect detection of direct AI plus machine-rewritten essays in the benchmark
  • Text, image, deepfake, plus OCR checks share one service
  • Shareable PDF reports are available
  • Essential annual plan includes 100,000 monthly credits
  • Supports several languages
Winston AI Cons
  • Caught 44.7% of humanized AI essays
  • Free access expires after 14 days
  • Results varied noticeably with text length
Trial $0 2,000 credits for 14 days
Essential Annual $10/mo Billed at $120 yearly with 100,000 credits per month
Essential Monthly $18/mo Month-to-month access with 100,000 credits
Advanced Monthly $29/mo 200,000 credits plus added integrity tools
Get Winston AI
05

GPTZero

Web platform / GPTZero

7.3/10

GPTZero's result was unusual. It caught 73.3% of humanized AI text, third best in that column, yet only 1.3% of AI-improved drafts plus 7.3% of AI-rewritten essays. Its strict overall detection rate landed at 43.7% on the GEDE subset. (cleverhumanizer.ai)

That does not make GPTZero useless. It offers color-coded sentence analysis, explanations, mixed-document handling, plus writing replay tools. Separate RAID testing cited by GPTZero reported far stronger performance on a broader corpus, which shows how sharply detector rankings can move when the dataset or labeling policy changes. (gptzero.me)

Best forEducators who value sentence highlights, mixed-document labels, plus writing-process evidence

Standout featureNatural-language explanations plus authorship tools add context beyond a single percentage
GPTZero Pros
  • 73.3% detection on humanized AI essays
  • Clear sentence-level highlights plus explanations
  • Free plan covers basic checks
  • Writing replay can provide process evidence
  • Supports English, German, Portuguese, French, plus Spanish
GPTZero Cons
  • Weak on AI-edited human drafts in the featured benchmark
  • Weak on machine-rewritten human text in the same run
  • Performance claims vary greatly between benchmarks
Free $0 Basic detection with lower request plus batch limits
Professional Annual $12.99/mo Annual billing rate cited on GPTZero's official comparison page
Use GPTZero

How the AI Detectors for Edited Text Were Tested

This ranking uses the August 2026 benchmark published by CleverFiles for Clever AI Detector. The test submitted 750 English academic essays from the public GEDE corpus to eight live detectors. The set contained 150 direct AI essays, 150 AI-improved human drafts, 150 machine-rewritten human drafts, 150 humanized AI essays, plus 150 pre-ChatGPT human controls. Each document was checked once with default settings. (cleverhumanizer.ai)

Ambiguous labels such as “mixed” were counted as not-AI. That choice lowered results for tools that frequently used a middle verdict. We weighted edited-text performance, weakest-category stability, report usefulness, access limits, plus current verified pricing. The publisher built the highlighted product, so the results should be repeated independently even though the underlying corpus is public.

How to Choose an AI Detector for Edited or Rewritten Text

Start by defining what “edited” means in your setting. A student correcting grammar in a self-written essay presents a different problem from a generated article sent through an adversarial paraphraser. In this benchmark, Originality.ai led the first case at 96.0%, while Copyleaks led the second at 93.3%. Clever AI Detector stayed close in both, which explains its overall lead. (cleverhumanizer.ai)

Then check input length, language coverage, file handling, plus how the report expresses uncertainty. A school may need writing replay or LMS support. A freelance editor may just need a free second opinion. If the decision can affect someone's grade or job, prioritize process evidence over detector confidence.

Common Mistakes When Checking Edited Text for AI

The biggest mistake is testing a short paragraph, seeing a precise percentage, then assuming the number is precise. In the featured run, several detectors lost more than 20 percentage points on texts below 200 words. Another mistake is comparing percentages from different tools as if their scales mean the same thing. They use different thresholds plus verdict rules. (cleverhumanizer.ai)

Avoid repeatedly rewriting honest work merely to make a red score disappear. That can damage the prose without proving anything. Save outlines, revision history, source notes, plus earlier drafts instead. Those records say more about authorship than a classifier ever can.

Which AI Detector Handles Edited Text Best?

Clever AI Detector earned first place because it had no obvious collapse point in this benchmark. Copyleaks was effectively level on overall detection plus slightly better on humanized essays, though Clever performed better on AI-improved drafts while charging nothing.

Originality.ai is worth considering for AI-polished human drafts, while GPTZero offers helpful explanations despite its uneven GEDE results. Pick the tool whose difficult category matches your real material, not the one with the loudest overall accuracy claim.

Top pick Clever AI Detector
Test two detectors on a set of documents whose writing history you already know, then record false alarms before screening unfamiliar work.

Questions About AI Detectors for Edited Text

What is the best AI detector for edited text if the draft has already been revised by a human?
Clever AI Detector is a strong choice if you need to catch AI-written text after heavy editing. It tends to hold up better than many basic detectors when the draft has been rewritten for tone, flow, or clarity.
How did Clever AI Detector perform in the edited text benchmark?
In the benchmark, Clever AI Detector was tested against text that had already been polished by a human editor. It stood out for keeping a useful signal even after the wording was changed, which is where many detectors start to lose accuracy.
Why do most AI detectors struggle with edited text?
Edited text breaks the surface patterns many detectors rely on. Once a person changes sentence length, swaps words, or reshapes paragraphs, the original AI fingerprint can get much harder to spot.
Can an AI detector still find AI text after heavy rewriting?
Sometimes, yes, but results vary a lot by tool. The best detectors look beyond simple phrasing patterns, so they have a better shot at catching text that has been edited several times.
Is Clever AI Detector better than free AI detectors for rewritten content?
Usually, yes. Free tools often work fine on untouched AI text, but rewritten content is where they tend to miss too much or flag too much, while Clever AI Detector is built to handle that messier middle ground.
What kind of edited text is hardest for AI detectors to catch?
Text that has been rewritten by a person while keeping the original meaning is the toughest case. If the editor also changes structure, trims repetition, plus mixes in natural human phrasing, detection becomes far less reliable.
How do I test whether a revised article still looks AI-generated?
Paste the final draft into a detector that can handle paraphrased text, then compare the result with a second tool for a sanity check. If both tools raise flags, it is worth reviewing the draft for repetitive patterns, generic transitions, or overly smooth phrasing.
What should I look for when comparing AI detectors for edited content?
Focus on how each tool handles paraphrasing, not just raw AI output. You also want clear scoring, easy-to-read feedback, plus a tool that does not collapse into random guesses once the text has been polished.
Does editing a ChatGPT draft make it undetectable?
No, not automatically. Editing can reduce the odds of detection, but strong detectors may still catch patterns in structure, phrasing, or consistency that survive the rewrite.
Which is more reliable for edited text, AI detection or manual review?
The best approach is both. A detector can spot risk fast, while a human reviewer can catch odd tone shifts, repetitive phrasing, or sections that feel over-polished.
Can marketers use AI detectors to check blog posts before publishing?
Yes, especially if the post started as an AI draft that went through edits. That is a smart way to catch sections that still sound generic, even after the final polish.
How much editing is too much for an AI detector to handle?
There is no exact cutoff. Once a draft has been rewritten for tone, structure, plus sentence variety, many detectors start losing confidence, so the most useful tools are the ones that can still give a meaningful risk signal.
Are AI detectors accurate on edited essays or student papers?
They can be helpful, but not perfect. Edited academic writing often mixes human revision with AI assistance, so a detector should be treated as a screening tool rather than final proof.
What are the main alternatives if an AI detector keeps missing edited text?
Try manual review, authorship history, or a second detector that uses different signals. For published content, style consistency checks can also reveal sections that were likely rewritten from AI.
Does Clever AI Detector work better on long articles or short paragraphs?
It is usually easier to judge longer text because there is more writing to analyze. Very short passages can be too thin for any detector to make a confident call.
How should I use an AI detector on a fully edited SEO article?
Run the final version after all rewrites are done, then scan any sections that still feel too smooth or too generic. If the tool flags only a few paragraphs, focus on those areas instead of assuming the whole article is a problem.
What pricing should I expect from top AI detectors for edited text?
Pricing varies a lot, from free limited scans to paid plans with higher volume or deeper analysis. If you check edited content often, a paid plan usually makes more sense than juggling caps on a free tool.
Can an AI detector give false positives on polished human writing?
Yes, especially when the writing is formal, repetitive, or highly structured. That is why a strong detector should be paired with context, since clean prose is not the same thing as AI prose.
What is the best workflow for checking AI-assisted content before it goes live?
First, edit the draft for voice plus clarity, then run a detector on the final version. If anything looks suspicious, revise those spots manually, then do one more pass before publishing.
Open Clever AI Detector Free · #1 Pick