EDUCATION & TRAINING
What I learned testing AI text detectors in 2026 (they still get it wrong)
Dev.to Machine Learning
About This Tutorial
If you build anything that touches user generated text, sooner or later someone asks: can we just detect the AI written stuff and filter it out? I spent a while putting tools like GPTZero, Originality.ai, Copyleaks and Turnitin through their paces. Here is the short version of what I found. Detection is a probability game, not a yes or no Every detector outputs a likelihood, not a verdict. Under the hood most of them lean on perplexity (how predictable the next token is) and burstiness (how much sentence length and structure vary.