The Plagino blog
Guides to AI detection and plagiarism checking
Plain-English guides for students and teachers: what checkers measure, where they go wrong, and how to check a draft before you submit.
How Does Turnitin Work? From Submission to Similarity Report and AI Score
Turnitin matches your paper's text to its database and reports a similarity score. See each step, what the AI indicator adds and who sees which result.
11 min read
Turnitin Checker Free: How to Check Your Paper Before You Submit It
There is no free Turnitin for students. Here are the legitimate ways to check a paper first, what each one shows, and why no free checker matches your school's score.
10 min read
Is Turnitin Free for Students? How Access and Cost Work
Turnitin is free for most students because schools pay for it, but you cannot buy it yourself. See who pays, what schools are charged and what free options exist.
9 min read
What AI Detector Do Colleges Use? Turnitin, Copyleaks, GPTZero and Others
Turnitin is the best-documented AI detector in colleges, others use Copyleaks or GPTZero, and some have turned detection off. See the evidence and how to check yours.
12 min read
Does Canvas Have AI Detection? Canvas, Moodle, Brightspace and Gradescope
Canvas has no built-in AI detector. Tools like Turnitin add one if your school licenses and enables it. How Canvas, Moodle, Brightspace and Gradescope compare.
11 min read
Can Turnitin Detect ChatGPT? What It Catches and What It Misses
Can Turnitin detect ChatGPT? What Turnitin says it catches, what independent tests found for edited and paraphrased text, and what to do if a flag appears.
11 min read
Is the Turnitin AI Detector Accurate? What Tests and Studies Show
Turnitin says its AI detector keeps false positives under 1%. See what independent studies and Plagino's March 2026 benchmark found, and where it falls short.
12 min read
Best AI Detector in 2026: How 7 Tools Scored on 1,000 Documents
Which AI detector is best? Detection and false-flag rates for 7 tools on 1,000 documents, plus free options, Reddit advice and test limits, as of October 2026.
11 min read
Turnitin Similarity Score Explained: What Percentage Is Acceptable?
A Turnitin similarity score is the share of your text that matches other sources. See what percentage is acceptable, what the colors mean and what to do next.
11 min read
Compare AI detectors
How Plagino stacks up, tool by tool, including where the other one is the better pick.
Before you submit
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- Sentence-level AI highlights
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Our benchmark
0.8%
of human-written documents wrongly flagged, with 97.4% of AI-written ones caught. 1,000 documents, March 2026.
See the full results →