AI detection tools are creating a new era of distrust in classrooms and online writing spaces, as scrutiny shifts from plagiarism checks to identifying AI-written text amid the proliferation of generative AI tools such as ChatGPT, Gemini and Copilot. Surveys show many U.S. teachers use detectors, but their judgments are less transparent and can misclassify non-native English writers. Publishers and schools face disputes and lawsuits, while some universities limit or disable detectors and adjust assessment methods.