Powered by Claude AI

Check your work before your professor does

Detect AI-generated content in your essays and reports using the same methodology as Turnitin — before you submit.

Get started free →See how it works

Free to get started · No credit card required

HOW IT WORKS

From upload to report in minutes

A simple four-step process to check your work before your professor does.

01

Upload your document

Securely upload your essay or report as a PDF through your Checkmate dashboard.

02

AI analysis runs

Our system analyses every sentence for AI-generated patterns using advanced linguistic detection.

03

Receive your report

Get a detailed breakdown with an overall AI score, sentence-level highlights, and confidence ratings.

04

Make your changes

Use the report to identify and revise flagged sections before submitting to your institution.

FEATURES

Everything you need to submit with confidence

Built for students who want to know exactly what their professor will see.

CORE FEATURE

AI Content Detection

Every sentence is scored for AI probability using advanced linguistic analysis calibrated to match Turnitin's detection methodology.

CORE FEATURE

Sentence-Level Breakdown

See exactly which sentences are flagged as AI-generated with individual probability scores and colour-coded highlights.

COMING SOON

Confidence Ratings

Every report includes a confidence level and false positive risk assessment so you know how reliable the result is.

COMING SOON

Similarity Detection

Check your document for plagiarism against a vast database of academic sources, books, and web content.

PRIVACY

Upload Anonymity

Your documents are never shared with third parties or added to any academic database.

PERFORMANCE

Instant Results

Most documents are analysed and returned within 30 seconds, so you can check and revise without waiting.

PRICING

Choose your plan

Start free, upgrade when you need more.

Free

Get started with basic AI detection.

Free
AI Detection Report
Sentence-Level Breakdown
1 Upload Per Day
Upload Anonymity
Similarity Report
Unlimited Uploads
Priority Processing
Get started
MOST POPULAR

Pro

Everything you need for full document checking.

£8/month
AI Detection Report
Sentence-Level Breakdown
Unlimited Uploads
Upload Anonymity
Similarity Report
Priority Processing
24/7 Support
Get started

Credits

Pay per use, no subscription needed.

£2.99/upload
AI Detection Report
Sentence-Level Breakdown
Similarity Report
Upload Anonymity
Priority Processing
No Expiry
Unlimited Uploads
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FAQ

Frequently asked questions