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GPTZero
GPTZero checks text and uploaded files for signs of AI-generated writing.
About GPTZero
GPTZero is a web-based tool that checks text for signs of AI-generated writing. It is designed to identify whether content was written by a human or produced by AI models such as ChatGPT, GPT-4, Gemini, and LLaMA.
You can type, paste, or upload a text file and submit it for analysis. The tool examines word use, sentence structure, and writing tone, and provides sentence-by-sentence analysis including sentiment. It lists support for checking articles, blog posts, product descriptions, educational submissions, and social media updates.
It suits content creators, educators and researchers, website owners reviewing SEO content, and general readers who want to assess the origin of online text. The site lists uses such as checking work projects for originality and reviewing content for AI plagiarism.
Key features
- Check typed, pasted, or uploaded text files
- Detect text from ChatGPT, GPT-4, Gemini, LLaMA
- Sentence-by-sentence analysis with sentiment analysis
- Identify human-written versus AI-generated sections
- Support for articles, blogs, and educational submissions
Best for: Content creators, educators, researchers, and general readers who need to check if text was AI-generated.
Good for
- Accepts typed, pasted, and uploaded text files
- Checks for multiple major AI models
- Shows sentence-by-sentence breakdown with sentiment
Watch out for
- Detection accuracy can vary
GPTZero at a glance
- Website
- gptzero.cc
- Category
- AI & Machine Learning › AI Writing Tools
- Type
- Online tool
- Pricing
- Free
- Platforms
- Web
- Open source
- Not stated
- Language
- English
- Last checked
- Oct 5, 2026 · Online when checked
- Listed
- Oct 5, 2026
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GPTZero FAQ
What is GPTZero?
GPTZero is a web tool that checks text to estimate whether it was written by a human or generated by AI models.
How do you use GPTZero?
Type, paste, or upload a text file, then select Detect Origin to view the analysis.
Can GPTZero detect ChatGPT text?
Yes, it is designed to spot patterns from GPT models including GPT-3.5 and GPT-4.
Is the ChatGPT detector accurate?
Accuracy can vary when detecting ChatGPT and GPT-generated content.
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