GPTZero is the first and leading AI detector that allows you to identify specific content in a document or text that has been generated by a large language model (LLM), such as ChatGPT.

Our AI checker is built using advanced algorithms for detecting AI-generated content. It’s also been enhanced to distinguish between human-written, AI-generated, and AI-refined writing.

Nov 28, 2025 · Quillbot's Free AI Detector - Use our AI checker to analyze text and identify content generated from ChatGPT, GPT-5, Gemini, Claude, and other AI platforms.

Navigate responsible AI use with our AI checker, trained to identify AI-generated text. A clear score shows how much of your work appears to be written with AI so you can submit it with peace of mind.

Backed by rigorous testing, our technology leads the industry in multilingual accuracy, ensuring you can detect AI-generated content and verify originality across borders.

Our AI detection model includes several components that analyze text to determine its origin and if it was written by AI. We use a multi-stage methodology designed to optimize accuracy while …

Check if text is AI-generated with YouScan’s free AI Detector. Get instant, accurate analysis of AI-written content. Try it now!

Our AI checker processes your text instantly and provides detailed results showing exactly which sections appear AI-generated. No waiting in queues, no slow processing - just immediate, actionable …

Check generated content with our free AI checker designed to recognize patterns and outputs from all foundational and major AI models like ChatGPT, Gemini, Grok, DeepSeek, Claude, Mistral, Llama, …