GPTZero: AI Content Detection

AI Detector - Free AI Checker for ChatGPT, GPT-5 & Gemini GPTZero GPTZero is the most accurate commercial AI detector according to latest benchmark Read the report 

 AI detector made to 
 Preserve what's human. 

 GPTZero detects AI content from ChatGPT, GPT-5, Gemini, and checks writing quality to make every word worth reading. 99 % Accuracy 17 million Users 1 million Educators Add to Google Docs - it‘s free! AI Detector Hallucination Detector Paste your text or Try an example:

 ChatGPT Claude Human AI + Human Polished by AI Paraphrased by AI 0 / 10,000 characters Upgrade Privacy Guarantee Privacy Guarantee Scan Scan The most precise, reliable AI detection results on the market

 Scan top AI models

 Classify AI text from major AI models, from ChatGPT to Gemini, Llama, Claude and more.

 Try AI detector Get unparalleled, advanced accuracy

 Independent benchmarking shows GPTZero Advanced Scan has best-in-class accuracy.

 Try Advanced Scan Verify real writing

 Opt for video replay and human writing verification to prove your authentic voice

 Explore writing report Connect your classroom

 Easily integrate with learning management systems including Canvas, and Google Classroom.

 Schedule a demo Improve with AI Tutor

 Build responsible writing habits with custom AI-powered writing feedback tools.

 Try AI writing tutor Detect plagiarism

 Ensure originality and check if content was copied from outside sources without attribution.

 Try plagiarism checker Scan top AI models

 Classify AI text from major AI models, from ChatGPT to Gemini, Llama, Claude and more.

 Try AI detector Get unparalleled, advanced accuracy

 Independent benchmarking shows GPTZero Advanced Scan has best-in-class accuracy.

 Try Advanced Scan Verify real writing

 Opt for video replay and human writing verification to prove your authentic voice

 Explore writing report Connect your classroom

 Easily integrate with learning management systems including Canvas, and Google Classroom.

 Schedule a demo Improve with AI Tutor

 Build responsible writing habits with custom AI-powered writing feedback tools.

 Try AI writing tutor Detect plagiarism

 Ensure originality and check if content was copied from outside sources without attribution.

 Try plagiarism checker OUR TECHNOLOGY OUR TECHNOLOGY Leading research in AI content detection modeling

 Our AI detection model contains 7 components that process text to determine if it was written by AI. We utilize a multi-step approach that aims to produce predictions that reach maximum accuracy, with the least false positives. Our model specializes in detecting content from ChatGPT, GPT 4, Gemini, Claude and Llama models.

 See how it works INTEGRATIONS

 Built-in AI detection for classrooms and workspaces

 Bring the most precise AI content checker directly into the software you use every day.

 Chrome Google Docs Classroom Canvas Zapier API GPTZero reviews

 “The best AI checker" according to our customers and community TechCr

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