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Writing
Check writing for AI-associated patterns and review sentence-level findings
AI DetectionWriting Review
Copyleaks AI Detector
Check multilingual text for AI patterns and plagiarism with explainable findings
Copyleaks checks text for AI-generated passages and plagiarism across more than 30 languages. Its AI Logic explains detection signals, while browser extensions, LMS connections, and APIs let educators and organizations add scans to existing review workflows.
Updated
2026-10-26
Platforms
Web / Chrome Extension / Edge Extension / API / LMS
Freemium
New users receive limited free scan credits, while Personal and Pro subscriptions add fuller access; education and enterprise API or LMS pricing is handled through sales.
* Pricing is for reference only; see the official site for current pricing.
Copyleaks AI Detector Key Features
AI Text Scan
Check supported-language writing for patterns associated with AI-generated passages, including text that mixes human and AI input.
AI Logic
Review why a passage was flagged and inspect highlighted phrases instead of receiving only an unexplained document-level result.
Originality Review
Check for plagiarism and paraphrased material alongside AI indicators to give reviewers a broader view of text originality.
Workflow Integrations
Bring scanning into browsers, learning platforms, or custom systems so teams can review submissions in familiar workflows.
Copyleaks AI Detector Best For
Educators
Review student work with AI and plagiarism checks, then inspect highlighted passages before discussing authorship.
Multilingual editorial teams
Screen content written in supported languages and examine the signals behind passages flagged as AI-generated.
LMS administrators
Add AI detection to learning workflows through available integrations instead of asking instructors to switch tools.
Pros
- The site states support for more than 30 languages
- Explainable signals help reviewers inspect flagged passages
- Browser, LMS, and API options suit institutional workflows
Considerations
- Free scanning is limited by credits
- Enterprise or LMS pricing requires a sales conversation
Copyleaks AI Detector Quick Start and Practical Tips
Quick start
- 1
Scan a representative sample in the language you review, then note the detector's highlighted passages and overall findings.
- 2
Open AI Logic for a flagged passage and inspect its explanation before discussing the result with its author.
- 3
Connect the browser extension or LMS integration for recurring submission reviews.
Pro tip
Core tip: Use AI Logic to inspect a reason, not to certify authorship. Do check the highlighted text and its context; don't treat an explanation as independent proof or assume every supported language behaves identically. For a high-stakes review, follow the same human review process you would use for any detector.
Frequently asked questions
01Does AI Logic prove that a passage was generated?
No. AI Logic explains signals behind a flag, but an explanation is still part of a detector result rather than independent proof. Review the passage in context and consider other evidence before making a consequential decision.
02Can the detector assess text with mixed authorship?
The site describes detection of AI passages, but a flagged section cannot establish who contributed each sentence. Use passage findings to guide a closer review, then compare with drafts or ask contributors for context.
03Does support for many languages ensure equal results?
Language coverage does not by itself guarantee identical performance across languages or writing styles. Test representative material in the language you use and keep a human review step for important decisions.
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