About this tool
AI Content Detector is a free online tool that analyzes text to determine if it was written by a human or generated by AI models like ChatGPT, GPT-4, Gemini, or Claude. Using forensic linguistic analysis, it examines patterns such as perplexity, sentence burstiness, robotic phrasing, and grammatical perfection.
Simply paste your text (minimum 50 words) and get an instant AI probability score with color-coded results: Green (0-20% - Likely Human), Yellow (21-60% - Mixed/Uncertain), or Red (61-100% - Likely AI). The tool provides detailed reasoning explaining what patterns indicate AI generation.