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AI Detector

Daniel Anderson

Is QuillBot's AI Detector Accurate? Our 2026 Test

We tested QuillBot's AI Detector against Phrasly on 8 passages in September 2026. It caught unedited AI writing every time, but slipped on mixed human+AI text and flagged one human sample. Here's what the score really means, where it fails, and how to double-check a flag for free.

12 min read

Student at laptop with glass cards summarizing the QuillBot AI detector review