Stanford researchers launched DetectGPT, a potent AI content identification technology that uses a zero-shot approach based on probability curvature to recognize machine-generated text (from ChatGPT, GPT-4, and Gemini, for example). It provides a web interface where users may upload or paste files (such as PDFs or Docx) for examination, as well as a Chrome plugin for real-time browser scanning. Important features include support for more than 50 languages, batch file scans, readability scores, plagiarism detection, fact-checking, API access, and a certification for human-written content. It is frequently used by marketers and content producers to confirm authenticity as well as in education to uphold academic integrity.