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.
Is the Copyleaks AI Detector Accurate? Benchmark Results and Pricing
Copyleaks caught 91.3% of AI-written documents and wrongly flagged 2.2% of human ones in our 1,000-document test. See the data, its pricing and where it wins.
8 min read
Is Grammarly's AI Detector Accurate? Plagino vs Grammarly (2026)
Is Grammarly's AI detector accurate? What Grammarly claims, what independent tests found, how it compares with Plagino on price and sources, and when to use it.
9 min read
Is Originality.ai Accurate? Benchmark Results, Pricing and Limits
Originality.ai caught 95.6% of AI-written documents but wrongly flagged 4.1% of human ones in our 1,000-document test. See the data, pricing and where it wins.
8 min read
Is Scribbr's AI Detector Accurate? Plagino vs Scribbr (2026)
Is Scribbr's AI detector accurate? Scribbr's own test, an independent check, the free vs premium limits, and how it compares with Plagino on price and sources.
8 min read
Is Winston AI Accurate? Plagino vs Winston AI Detector (2026)
Is Winston AI accurate? Its 99.98% claim, what the RAID study and other independent tests found, its credit pricing, and how it compares with Plagino.
8 min read
Before you submit
Check your draft the way your marker will.
- Sentence-level AI highlights
- Matched academic sources
- PDF report in minutes
3 free scans a month · no card
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 →