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.

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.

Can GPTZero detect text from the latest AI models? Yes. GPTZero is continually updated to recognize text from the newest large language models, including ChatGPT (GPT-3, GPT-4, …

GPTZero is the #1 AI Detector for Students. Check AI-written text, improve essays, and get plagiarism checks with free and advanced student plans.

GPTZero is the most trusted AI detector for education, designed to check if content was written by large language models such as ChatGPT, GPT-5, GPT-4, Gemini, Claud, Perplexity or Copilot.

Keep training data clean with GPTZero's AI detector for machine learning. Filter AI-generated text via fast REST API, granular scores, and on-prem options

Free AI detector for writers. Identify AI-written content, get actionable edits, and prove originality with GPTZero's free AI writer checker.

GPTZero offers the most accurate online Plagiarism Checker, powered by AI. Detect copied text and plagiarised sources with precision. Try it for free.

GPTZero is a leading AI detector that checks if a document is written by a large language model (e.g., ChatGPT). It analyzes text at the sentence, paragraph, and document levels and is …

GPTZero is the most trusted AI detector for checking if content was written by an LLM such as ChatGPT, GPT-5, GPT-4, Gemini, or Copilot. GPTZero tells you where AI is used at …