Originality.ai
AI Content Detection
AI and plagiarism detection built for serious content publishers.
From $12.95/mo
Copyleaks
· Content integrity and AI detection for editorial, education, and enterprise teams.
Copyleaks
Content integrity and AI detection for editorial, education, and enterprise teams.
Chandan Kumar
Copyleaks combines an AI-text detector with a plagiarism checker in a single unified scan and report, and separately offers AI image, video, and deepfake detectors plus a text-moderation product; one scan can flag both machine-generated writing and copied or unlicensed content in one pass rather than requiring two separate tools.
Detection returns an overall AI-likelihood percentage, plus, for signed-in users, sentence-by-sentence highlighting of flagged phrases through a feature the company calls "AI Logic," which also surfaces AI Phrases (the statistical frequency with which a phrase originates from AI) and AI Source Match (whether flagged text already appears published elsewhere). Copyleaks names specific models it detects against (GPT-5/4/ChatGPT, Claude, Gemini, DeepSeek, Llama, and others), supports AI detection in 30+ languages and plagiarism detection in 100+, and cites a July 2023 Cornell Tech study published on arXiv naming it the most accurate detector tested, alongside its own claimed 99%+ accuracy and 0.03% false-positive rate.
The product spans three distinct audiences with separate plans: Personal/Pro for individual writers, students, and small teams; Education, priced per full-time student with deep LMS integration (Canvas, Moodle, Blackboard, D2L, Schoology, Sakai, Edsby) for academic-integrity use; and Enterprise/custom plans for governance, IP-protection, and unauthorized-LLM-training use cases at organizations needing on-premises or private-cloud hosting and compliance certifications (SOC 2/3, GDPR, PCI DSS, NIST RMF).
What you get with Copyleaks
Unified AI + Plagiarism Detector
A single scan and report cover both AI-generated text and plagiarism, rather than running two separate checks.
AI Logic
Adds sentence-level highlighting plus "AI Phrases" and "AI Source Match" explanations for why text was flagged.
AI Image, Video, and Deepfake Detection
Separate detectors analyze images and video for signs of AI generation or manipulation, alongside the core text detector.
Browser extension and Google Docs add-on
Scans content directly inside Chrome, Edge, or Firefox, or inside a live Google Doc.
API and LMS integration
A white-labeled API for embedding detection into another platform, plus native integration with major LMS platforms for education customers.
What Copyleaks does well, and where it falls short
Strengths
- Combines AI detection and plagiarism checking in one credit pool and one report instead of separate tools
- Cites an independent, named third-party study (Cornell Tech, published on arXiv) rather than only self-reported accuracy
- Detects AI-generated source code and images/video in addition to text, broadening use beyond prose
- Free, no-login scanning up to 25,000 characters is a genuinely higher cap than many competitors offer without an account
- Deep, named LMS integrations (Canvas, Moodle, Blackboard, D2L, Schoology, Sakai, Edsby) for education customers
Limitations
- Sentence-level highlighting and the full "AI Logic" explanation are locked behind a free account or paid plan, not available on the anonymous scan
- The 99%+ accuracy and 0.03% false-positive figures are Copyleaks' own reported numbers, even though one third-party study is cited to support them
- Enterprise and Education pricing is entirely custom/quote-based, so total cost isn't visible without contacting sales
- Switching plans forfeits unused credits from the previous plan, including a partially used annual subscription, per Copyleaks' own terms
Copyleaks pricing
Personal costs $16.99/month billed monthly or $13.99/month billed annually ($167.88/year); Pro costs $99.99/month billed monthly or $74.99/month billed annually ($899.88/year). Enterprise and Education plans are custom-quoted. Anyone can scan up to 25,000 characters for free without an account, and new accounts also receive a limited one-time pool of free credits to trial paid features.
| Plan | Monthly | Annual /mo | Includes |
|---|---|---|---|
| Free | Free | Free | No-login AI + plagiarism scan up to 25,000 characters is always free; new accounts also receive a limited one-time pool of free credits (1 credit = 250 words or 1 image) to try paid features before subscribing. |
| Personal | $16.99 | $13.99 | 1,200 unified credits per month (up to 300,000 words or 1,200 images), combined AI + plagiarism report with AI Logic, 30+ language AI detection, 100+ language plagiarism detection, browser extension, Google Docs add-on. |
| Pro | $99.99 | $74.99 | Everything in Personal plus 25 team seats, advanced detection filters, full-website sitemap scanning, cross-language plagiarism detection, and an analytics dashboard; 12,000 unified credits per month (up to 3,000,000 words or 12,000 images). |
| Enterprise | — | — | Custom pricing for organizations needing API access, on-premises/private-cloud hosting, governance policies, and dedicated support. |
| Education | — | — | Priced per full-time student; LMS integrations (Canvas, Moodle, D2L Brightspace, Schoology, Sakai, Edsby, Blackboard), student/course/institution analytics, dedicated onboarding. |
Verified against the official pricing page.
Verdict
Use Copyleaks
- Teams that want combined AI-and-plagiarism detection in a single unified scan rather than two separate subscriptions
- Educational institutions needing native LMS integration and per-student pricing for academic-integrity programs
- Organizations needing AI-generated code, image, or video detection alongside text
- Enterprises with governance, IP-protection, or unauthorized-LLM-training concerns that need custom deployment (on-prem/private cloud)
Skip Copyleaks
- You need full sentence-level highlighting on a quick, anonymous check without creating an account
- You want a fully transparent, non-custom price for institution- or enterprise-scale usage
- Your only need is text-based AI detection and you don't want to pay into a platform that also covers images, video, and code
- You need month-to-month flexibility without losing unused credits when you change plans
Copyleaks reviews from real users
Ratings from trusted review communities.
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