ZeroGPT is widely used and often free at small volumes, which is why people ask about its accuracy. Like every style-based detector, its results vary by length, language and genre, and a single percentage is not proof of authorship.
Treat its output as one opinion. If a decision matters — a grade, a hire, a misconduct case — read the text, seek sentence-level evidence, and do not rely on one free report alone. IA Checker publishes a sourced, dated comparison with ZeroGPT for feature-level context.
