Description
Copyleaks is an AI and plagiarism content detector built for education, publishing, and enterprise use, claiming over 99% accuracy across 30-plus languages and detection of leading models including ChatGPT, Gemini, DeepSeek, and Claude. Its detection runs on a proprietary AI Logic system combining AI Source Match, which compares text against known AI-generated patterns, with AI Phrases, which flags unusual word structures. Beyond text, Copyleaks offers a dedicated AI Video Detector for enterprises that pinpoints synthetic, manipulated, or hybrid AI video, alongside its established plagiarism detection, writing assistance, and LMS integrations for institutions like Canvas, Moodle, and Blackboard.
Key Features
- AI Logic detection — combines AI Source Match and AI Phrases for source-backed, sentence-level AI detection.
- 30+ language support — detects AI-generated text across a broad set of languages beyond English.
- AI Video Detector — an enterprise feature that pinpoints synthetic, manipulated, or hybrid AI video.
- Multi-format scanning — handles PDFs, DOCX, TXT files, and programming code like Python and Java.
- LMS integrations — connects directly to Canvas, Moodle, and Blackboard for academic use.
- Chrome extension — scans news articles and social media posts directly in the browser.
How It Works
A user pastes text or uploads a document, and Copyleaks’ AI Logic system analyzes it using AI Source Match, which compares the content against known AI-generated text patterns, and AI Phrases, which flags unusual word structures associated with machine writing. The result returns a document-level AI probability along with sentence-level markers and confidence scores, and sensitivity levels can be adjusted to reduce false positives on subtle or heavily edited text. The same detection logic extends to Copyleaks’ plagiarism checker, comparing content against previously published sources, and to its enterprise AI Video Detector for identifying synthetic or manipulated video. Educational institutions can plug detection directly into Canvas, Moodle, or Blackboard, while the Chrome extension lets a user scan content anywhere on the web.
Technical Architecture & Overview
- Core Engine: Copyleaks’ proprietary AI Logic system, combining AI Source Match and AI Phrases detection methods.
- Deployment: Web app, Chrome extension, and LMS integrations for Canvas, Moodle, and Blackboard.
- API Surface: A customizable API for building AI and plagiarism detection into other platforms.
- Known Limits: Detection can miss heavily humanized or rewritten AI text; results are best treated as one data point rather than definitive proof.
Pros & Cons
| Pros | Cons |
|---|---|
| Detects AI-generated text across 30-plus languages, broader coverage than many competitors. | Detection can miss well-rewritten or heavily humanized AI text, per independent testing. |
| AI Video Detector extends detection beyond text to synthetic and manipulated video for enterprises. | Some user reviews report inconsistent accuracy compared to the company’s own stated figures. |
| LMS integrations connect directly to Canvas, Moodle, and Blackboard for academic institutions. | Full enterprise features like the AI Video Detector are positioned toward institutional buyers. |
| Multi-format scanning covers documents and programming code, not just plain text. | Team and API access scale in cost with the Pro and Enterprise tiers. |
| Adjustable sensitivity levels help reduce false positives on subtly reworded content. | Annual billing is required to reach the lowest advertised monthly-equivalent price. |
Pricing
| Plan | Price |
|---|---|
| Personal | $16.99/month billed monthly |
| Pro | $99.99/month billed monthly |
Platform Availability
Web | Chrome | Canvas | Moodle | Blackboard | API
Best For
Educators and institutions needing LMS-integrated AI detection | Publishers and enterprises needing multi-language, multi-format scanning | Organizations concerned about AI-generated or manipulated video content
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Also worth comparing: GPTZero, an AI content detector with a Hallucination Detector and Writing Report | Originality.ai, an AI and plagiarism detector built for content marketing and SEO teams | Winston AI, an AI text and image detector with digital forensics analysis
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Frequently Asked Questions
Does Copyleaks have a free plan?
No permanent free plan is listed on Copyleaks’ official pricing page; individual paid plans start at $16.99/month on the Personal tier.
How much does Copyleaks cost?
The Personal plan runs $16.99/month billed monthly, and Pro runs $99.99/month billed monthly, with Enterprise and Education pricing available separately; yearly billing saves up to 25%, according to Copyleaks’ official pricing page.
How accurate is Copyleaks?
Copyleaks states over 99% accuracy with a 0.2% false-positive rate, verified through independent third-party research, according to the company’s official site.
Does Copyleaks detect AI-generated video?
Yes. Copyleaks’ enterprise AI Video Detector pinpoints synthetic, manipulated, or hybrid AI video, according to Copyleaks’ official site.
Does Copyleaks integrate with learning management systems?
Yes. Copyleaks integrates directly with Canvas, Moodle, and Blackboard for academic institutions, according to Copyleaks’ official site.
