A running record of the improvements we make to detection, integrations, and the everyday experience - newest first.
Detection model updated for the latest generation of AI writing tools (GPT 5.4, GPT 5.5, Claude Opus 4.7, Claude Opus 4.8, Claude Sonnet 4.6, Gemini 3.1 Pro, Gemini 3.5-flash, Grok 4.3)
Optional 2FA for any account, via an authentication app with backup codes.
Check every open post in a Canvas discussion board in one pass, instead of post-by-post scanning.
Higher free allowance enabled for both similarity and AI detection.
Rosters, courses, and enrolments synchronize automatically from your SIS.
Get a full breakdown of Fingerprint findings; the tool has moved to the main menu.
Detection model updated for the latest generation of AI writing tools (Grok 3, Grok 4)
Connect PlagiarismCheck.org to thousands of apps through Zapier.
Annual subscriptions for individual users, alongside monthly plans, enabled.
Grade against a rubric and leave structured feedback directly on the report.
Detection model updated for the latest generation of AI writing tools (GPT-5.1, GPT-4.1-mini, GPT-4o, Claude Opus 4.1, Claude Sonnet 4, Claude Sonnet 4.5, Gemini 2.5, Gemini 3 Pro, Grok 3, Grok 4)
Standards-based deep integration across all major LMS platforms.
Grammar Checker, Topic Generator, and Essay Grader available as standalone services.
Similarity search now catches invisible and blank characters used to disguise copying.
Run a test similarity and AI check without creating an account.
Monthly subscription plans for individual users added to payment options.
Check Canvas forum posts and quizzes for similarity and AI.
Check Brightspace forum posts and quizzes for similarity and AI.
Dedicated AWS GPU infrastructure with a proper queue developed.
PlagiarismCheck.org got a new modern design.
Check for originality with PlagiarismCheck.org on Brightspace LMS.
Check for originality with PlagiarismCheck.org on Schoology LMS.
Spanish language added for AI detection.
Receive formatted report with Similarity and AI traces highlighted.
Open-access research papers added as a source.
Check for originality with PlagiarismCheck.org on Populi LMS.
Check any text for AI content in the browser.
AI score available in Moodle, Canvas, Google Classroom, and the PDF report.
Scan any text to detect AI traces.
Google alongside Bing in search configuration.
Report renders the document as submitted rather than stripped plain text.
Students and teachers auto-provisioned on first use.
New profile, New Check, My Documents, Organization, Citation Generator, PDF report added.
Checks against Course Hero content enabled.
PowerPoint files accepted for similarity check.
Check Moodle quizzes and forum posts for similarity.
Group average similarity, owner/admin dashboards available.
Check grammar alongside similarity detection.
Flags work that doesn't match a student's established writing style, catching ghostwriting when similarity scanning doesn't find matches.
Cross-institution bank of checked documents catches contract-cheating reuse across schools.
Flags a student resubmitting their own work from earlier.
Teachers can select text and leave inline feedback.
Usage and student similarity-score statistics available to admins.
Each source gets its own colour; you can click a source to jump to that spot; sources became clickable in the PDF.
Account became available in more languages.
Run checks straight from Google Classroom; teachers can subscribe to courses.
Check for plagiarism without leaving your document; toggle highlighting enabled.
Check for originality with PlagiarismCheck.org on Canvas LMS.
B2B members self-register via invite link.
No manual triggering per assignment needed.
Shareable report links, print button, username on PDF.
Similarity score is shown inline in Moodle; report was restyled.
Check for originality with PlagiarismCheck.org on Google Classroom LMS.
Student accounts, bulk checks, per-member balance limits, and multi-upload function introduced.
Simplified checking for documents in German.
The tool is built into the user account.
View, edit, export, and delete your personal data; account deletion option; cookie policy; consent capture added.
Excluded from the score and displayed on their own.
Accounts for schools and universities.
Rewritten cabinet, redesigned dialogs, mobile support, faster page loads.
Handles different fonts and conventions.
Matched text highlighted with links to the source.
Rebuilt matching engine with better paraphrase detection.
Better source coverage for text similarity detection.
Quotations and bibliography lists no longer count as plagiarism.
Rebuilt the frontend and the first open API for PlagiarismCheck.org.