AI Content Detector
Detects All Major AI Writing Models
ChatGPT 5
Copilot
AI Content Detector for Real-World Writing
ContentDetector.org helps you check if a passage was likely written by an AI model. Paste text, upload a file, or drop in a URL. In a few seconds you get a clear score, section-by-section highlights, and simple guidance to keep your content authentic and publish-ready. Built for editors, marketers, educators, and teams that care about trust.
Who Is This For?
Our tool serves diverse professionals across multiple industries
Publishers and SEO teams
Validate author workflows, keep tone consistent, and avoid accidental over-automation in money pages.
Agencies
Review vendor deliverables, maintain client trust, and document checks with shareable reports.
Educators and L&D
Scan essays and training materials with straightforward signals that are easy to discuss in class.
Why you should pick ContentDetector.org?
Comprehensive features to detect and analyze AI-generated content
Clear signal, not noisy dashboards
Your report shows a single, easy score with color highlights. You can scan mixes of human and AI without reading ten different charts.
Structure and formatting preserved
Headings, lists, citations, and links stay intact, so you can export or copy back into your CMS without cleanup. (Writers and SEOs asked for this first.)
Works with popular models
We evaluate patterns associated with GPT-5, Gemini, Claude, and other large models so you can make practical decisions across toolchains.
Privacy first
We do not use your inputs to train models. You control retention through your workspace settings.
Multi-platform by default
Use the web app, a Chrome extension inside your browser, or our desktop and iOS apps to match your workflow.
ContentDetector.org vs common alternatives
| Dimension | ContentDetector.org | Originality.ai | GPTZero | Copyleaks |
|---|---|---|---|---|
| Core use case | AI content detection and quick originality checks | Full suite for detection, plagiarism, readability, fact checks, site scans | AI detection with education focus and writing quality checks | AI detection plus plagiarism, enterprise governance |
| Report style | Real-time score with simple pass or risk signal | Detailed scores, bulk scans, team features | Per-doc scan, citation check, reading level | Scores, language coverage, LMS and enterprise tools |
| Platforms | Web, Chrome, desktop apps for Mac and Windows, iOS | Web app, API, Chrome, WordPress | Web app, Google Docs add-on, API | Web app, API, LMS integrations |
| Accuracy positioning | “Fast and accurate” with GPT-4, Claude, Copilot coverage | “Most accurate” marketing, broad toolset | Strong third-party press mentions in education tests | “Over 99% accuracy” claim, 30+ languages |
| Pricing vibe | Freemium style site, no clear public tiers on homepage | Subscriptions and credits, popular Pro plan | Free tier plus paid tiers for power users | Personal and Pro plans, enterprise on request |
| Best fit | Marketers and editors who want quick checks and simple UX | Agencies and teams that need audits, API, bulk workflows | Teachers, students, researchers, and writers who want simple flags | Enterprises and universities that need policy controls and integrations |
How detection works, in plain language?
Our system scores signals such as token pattern predictability, semantic repetition, and formatting regularity. We also look for local bursts of uniform phrasing that can happen when prompts drive a section too hard. The result is a probability score, plus highlights that show where to review, rewrite, or accept.
Detectors are indicators, not judges. Results vary with model updates and heavy human edits. Treat scores as guidance alongside editorial review. This aligns with independent commentary that detector performance depends on dataset, model, and sample length.
FAQs
Is AI detection perfect?
No. Any detector can be wrong, especially on very short inputs or heavily edited text. Use results as guidance with human review.
Which models do you cover?
We evaluate patterns associated with major models such as GPT-5, Gemini, and Claude, and we update signals as the ecosystem evolves.
Do you store my text?
By default, inputs are kept only as needed to generate your report. Text is removed as soon as you close the tab.
Can I run bulk checks?
Yes. Upload documents or connect the API. You can also run a folder or URL list.
Here’s what our users have to say.
The AI Content Detector has revolutionized our content analysis process. It’s the best. Highly recommended!
David Thomas
Content Writer
The contentdetector.org has delivered an exceptional experience for us. You won’t be disappointed in giving it a try.
Lisa Elizabeth
Content Strategist
Try it now
Paste a paragraph or upload a file. Get a clear score, see highlights, and ship writing you can stand behind.