pheebo

pheebo is a free browser extension that detects AI mathematical mistakes and hallucinations in real-time. It offers two modes - selection and automatic. In selection mode, users can select any mathematical expression and pheebo will instantly analyze it for errors. In automatic mode, pheebo automatically detects mathematical errors in AI-generated content, highlighting mistakes in real-time without interrupting your workflow. It is available for free with selection mode or upgrade to Pro for automatic error detection and team-ready controls.