
AI Detector False Positive Rates 2026: Turnitin vs GPTZero, Originality.ai, Pangram, and an ESL Defense
AI detector false-positive rates vary widely by tool, threshold, text length, and language background, so no cross-tool number should be trusted outside the benchmark that produced it. This piece reviews sourced 2026 evidence on Turnitin, GPTZero, Originality.ai, and Pangram, explains why STEM/ESL writing triggers false flags, and lays out an evidence-based way to defend legitimate writing.


