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Head to head · 2026

Copyleaks vs Winston AI

Pricing, free plans, ratings, features, pros and cons, side by side. Where one comes out ahead, we mark it.

Copyleaks

Copyleaks scans text and images for plagiarism and AI-generated content across dozens of languages for schools…

4.2$9.99/mo

Visit Copyleaks (opens Copyleaks in a new tab)

Winston AI

AI content and image detection claimed accurate 99.98% of the time - sentence-level highlights, plagiarism checks,…

3.5Free

Visit Winston AI (opens Winston AI in a new tab)

Who comes out ahead

Based only on the facts in our directory. The right pick still depends on the job you need done.

  • Lower starting price

    Not comparable

    Not comparable: Winston AI does not list a price

  • Free plan

    Tie

    Both have one

  • Higher rating

    Copyleaks

    4.2 against 3.5

  • Same job?

    Yes

    Both are Writing tools

Side by side

Compared onCopyleaksWinston AI
Our rating4.2Better3.5
Starts at$9.99/moFree
Free planYesYes
CategoryWritingWriting
PlansFrom $9.99/moFree
Key features
  • Combined plagiarism and AI-content detection in one scan
  • Multi-language support across dozens of languages
  • Image-based AI detection alongside text scanning
  • Credit-based usage model covering roughly 250 words per credit
  • Browser extension and API for embedding checks into other workflows
  • AI text detection claimed 99.98% accurate across major LLMs
  • AI-generated image and deepfake detection
  • Plagiarism checking alongside AI detection
  • Color-coded, sentence-level authenticity highlighting
  • Chrome, WordPress, Google Classroom, Zapier, and API integrations
Pros
  • Combines plagiarism and AI-detection in one subscription instead of two tools
  • Free tier gives enough monthly pages to test before paying
  • Long operating history since 2015 in the plagiarism-detection space specifically
  • Free tier available with no credit card required
  • Combines text detection, image detection, and plagiarism checking in one report
  • Broad integration support across common education and publishing workflows
Cons
  • Credit-based pricing gets confusing to estimate for high-volume users
  • AI-detection accuracy claims face industry-wide skepticism, not unique to Copyleaks
  • Enterprise and education pricing is hidden behind a sales quote
  • Paid tier pricing isn't shown on the homepage
  • AI-detection accuracy claims are self-reported, not independently audited
  • Any AI detector carries some false-positive risk on human-written text
CompanyCopyleaks, founded 2015Winston AI

Prices come from each vendor's pricing page, last checked 20260826. Check the vendor before you buy.

FAQ

Questions people ask

Is Copyleaks better than Winston AI?

In our reviews Copyleaks scores 4.2 and Winston AI scores 3.5. The better pick depends on the job. Copyleaks: Copyleaks scans text and images for plagiarism and AI-generated content across dozens of languages for schools and businesses. Winston AI: AI content and image detection claimed accurate 99.98% of the time - sentence-level highlights, plagiarism checks, and deepfake detection in one report.

Which is cheaper, Copyleaks or Winston AI?

Copyleaks: from $9.99/mo. Winston AI: free.

Do Copyleaks and Winston AI have free plans?

Yes, both have a free plan.

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