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Detecting-AI.com
International House, 10 Churchill Way, Cardiff, United Kingdom, CF10 2HE
What it is
Detecting-AI.com analyzes text for signals associated with AI writing and displays a document score with likely AI-like passages highlighted. Users can paste text or submit TXT, PDF, and DOCX files; scanned PDFs that require OCR are not supported. The detector is designed for text associated with GPT, Claude, and Gemini, including human-edited and AI-assisted drafts. It keeps document structure, scores eligible sentences separately, and averages those scores into a document-level signal. The maker reports 99% detection accuracy and a false-positive rate under 1% on datasets it describes, while warning that short, translated, heavily edited, or formulaic writing can be harder to classify. It also says a score cannot establish authorship or misconduct. The service provides API access for detection, humanization, and plagiarism checks, and describes integrations for Moodle deployments and Zapier. The free plan requires no account and allows up to 300 detections per day, with a 15,000-character limit per check. Paid plans start at $7/mo billed annually. The service is available on web and through an API.
For and against
For
- Accepts pasted text and TXT, PDF, or DOCX files.
- Highlights passages alongside a document score.
- Free plan allows up to 300 detections daily.
- API access includes detection, humanization, and plagiarism checks.
- No account is required for the free plan.
Against
- Scanned PDFs requiring OCR are not supported.
- Short, translated, heavily edited, or formulaic text can be harder to classify.
- A score cannot establish authorship or misconduct.
- Paid plans start at $7/mo billed annually.
The verdict
Detecting-AI.com offers document-level scoring, passage highlights, and API access, with a free plan for checks up to 15,000 characters. Its own cautions matter: results can be harder to interpret for some writing and do not prove who wrote it.
Who it suits
It may suit educators, editors, publishers, and individuals reviewing text for AI-writing signals. Users should treat scores cautiously, particularly for writing that is short, translated, heavily edited, or formulaic.
Plans and prices
Free
15,000 characters per check · Up to 300 detections per day · AI Humanizer: 150 words per rewrite · Fact Checker: 125 words per check
Read 7 Oct 2026 · detecting-ai.com
Monthly
Unlimited AI detection · 1,000,000 characters per detector check · 1,000 plagiarism credits per month · Unlimited AI Humanizer
Read 7 Oct 2026 · detecting-ai.com
Yearly
Unlimited AI detection · 1,000,000 characters per detector check · 12,000 plagiarism credits per year · Unlimited AI Humanizer
Read 7 Oct 2026 · detecting-ai.com
On the record
- Accuracy claim
- The maker reports 99% detection accuracy and a false positive rate under 1%, measured on diverse datasets it describes on its site.detecting-ai.com · read 7 Oct 2026
- API
- The developer documentation provides REST APIs for detection, humanization, and plagiarism checks, plus a remote MCP server for compatible assistants.detecting-ai.com · read 7 Oct 2026
- Audience
- The maker names education, editorial review, publishing, and personal writing as use cases for reviewing text with care.detecting-ai.com · read 7 Oct 2026
- Data use
- The maker says it does not sell submitted text or use it to train a general-purpose AI model unless the user separately and expressly agrees.detecting-ai.com · read 7 Oct 2026
- File input
- The web detector accepts pasted text and TXT, PDF, or DOCX files; scanned PDFs requiring OCR are not supported yet.detecting-ai.com · read 7 Oct 2026
- Integrations
- The maker describes API-based Moodle deployments scoped with each institution and a Zapier app with detector, humanizer, and plagiarism actions.detecting-ai.com · read 7 Oct 2026
- Limits
- The site says short, translated, heavily edited, or formulaic writing can be harder to classify, and a score cannot establish authorship or misconduct.detecting-ai.com · read 7 Oct 2026
- Method
- The website preserves document structure, scores eligible sentences independently, and averages their scores into a document signal.detecting-ai.com · read 7 Oct 2026
- Model coverage
- The detector is designed to review text associated with GPT, Claude, and Gemini, including human-edited and AI-assisted drafts.detecting-ai.com · read 7 Oct 2026
- Privacy
- The privacy policy says text is not sent while typing, supported files are read in the browser, and extracted text is sent only after a check starts.detecting-ai.com · read 7 Oct 2026
- Purpose
- The detector analyzes text for AI writing signals and displays a document score with AI-like passages highlighted in the full text.detecting-ai.com · read 7 Oct 2026
- Security
- The privacy policy lists encrypted connections, restricted server-side credentials, secure HTTP-only session cookies, request-size and rate limits, response validation, and bot protection.detecting-ai.com · read 7 Oct 2026
- Support
- The contact page directs product, account, billing, API, integration, and partnership inquiries to [email protected].detecting-ai.com · read 7 Oct 2026
