Compare AI detectors
Each comparison quotes our published benchmark where the tool was tested, the vendor's own claims where it was not, and says plainly when the other tool is the better pick.
Copyleaks AI Detector Review: How Accurate Is It Against Plagino and Turnitin?
The Copyleaks AI detector caught 91.3% of AI-written documents and wrongly flagged 2.2% of human ones in our 1,000-document test. See data, pricing and fit.
12 min read
GPTZero Checker vs Plagino: Benchmark Results, Pricing and Limits
GPTZero caught 88.9% of AI-written documents but wrongly flagged 5.7% of human ones in our 1,000-document test. See the data, pricing and where it wins.
11 min read
Is Grammarly's AI Detector Accurate? Plagino vs Grammarly (2026)
Is Grammarly's AI detector accurate? Its 99% claim vs every independent test, how the free checker works, Turnitin risk, and how it compares with Plagino.
14 min read
Originality.ai AI Detector: How Accurate It Is, What It Costs and How It Compares
Originality.ai's AI detector caught 95.6% of AI text but flagged 4.1% of human writing in our 1,000-document test. See accuracy, pricing and when to use it.
13 min read
Plagino vs Pangram: Is Pangram AI Accurate, and Which Detector Fits You?
Pangram AI reports a 1-in-24,000 false positive rate. See what independent tests found, its pricing and limits, and how it compares with Plagino.
14 min read
Is the QuillBot AI Detector Accurate? Plagino vs QuillBot (2026)
Is the QuillBot AI detector accurate? Its RAID claim, what independent tests found, free limits, the Scribbr link, and how it compares with Plagino.
14 min read
Is Scribbr's AI Detector Accurate? Plagino vs Scribbr (2026)
Is the Scribbr AI checker accurate? Scribbr's own test, an independent test, free vs premium limits, the QuillBot link, and how it compares with Plagino.
11 min read
Winston AI Detector: How Accurate Is It, and How Does It Compare With Plagino?
Winston AI detector claims 99.98% accuracy. See what independent tests found, its credit pricing, false positive rate and how it compares with Plagino.
12 min read
Is ZeroGPT Accurate? Claims, Independent Test Results and Limits
ZeroGPT claims 98.4% detection accuracy, but independent tests give mixed results. See the data, false-flag risks, pricing and where Plagino's benchmark fits.
12 min read
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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.
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