ZeroGPT.cc is a free AI content detector that analyzes text and reports the percentage written by AI models such as ChatGPT, GPT-5 and Gemini.
About
ZeroGPT.cc is a free web-based tool that estimates whether a piece of text was written by a human or generated by an AI model. As AI writing tools have spread through marketing, publishing, and education, readers and reviewers increasingly need a way to verify the origin of a document before accepting it as original work. ZeroGPT.cc addresses this by analyzing pasted text and returning a probability score along with a sentence-by-sentence breakdown.
The detector was built by the ZeroGPT team using machine learning and natural language processing techniques trained on large collections of human-written and AI-generated articles. Users paste text into the input box (up to 1,000 words, with a companion split tool for longer passages), press the check button, and receive an immediate assessment, including the percentage of the text judged to be AI-generated. The tool is positioned for checking content from models such as ChatGPT, GPT-5, and Gemini.
Key Features
Pricing & Fees
- Pricing: The detector is presented as free to use, including unlimited checks; no paid plans are publicly listed on the pages reviewed, so check the official site for current offerings.
- Input limit: The standard input box accepts up to 1,000 words per check, with a split tool available for longer documents.
- Model coverage: The vendor states the detector works across GPT model versions, including GPT-5 and Gemini content.
- Claimed accuracy: ZeroGPT.cc states its algorithm was developed after analyzing more than 20 million articles and reports accuracy above 99% in its own experiments; these are vendor claims rather than independently verified figures.
Who It's For
ZeroGPT.cc is aimed at anyone who needs to verify whether a text is human-written. Teachers and professors can screen student assignments for AI-generated work, while editors and publishers can check submitted articles for authenticity. SEO specialists and content marketers can use it to review drafts before publication, since search engines and audiences increasingly favor original writing. Students and freelance writers may also run their own drafts through the tool to confirm their work reads as human-authored before submitting it.
FAQ
What is ZeroGPT.cc?ZeroGPT.cc is a free online AI content detector that analyzes pasted text and reports the likelihood it was generated by AI models such as ChatGPT, GPT-5, or Gemini.
Is ZeroGPT.cc free to use?Yes, the site presents the detector as free with unlimited checks; no paid plan is listed on the pages reviewed.
What content types is ZeroGPT suited for?The vendor highlights SEO content, academic work such as essays and assignments, and marketing copy as its main use cases.
Does ZeroGPT.cc offer an API?Yes, the site advertises API integration so detection can be embedded into existing applications and automated workflows.
How accurate is ZeroGPT.cc?The vendor reports over 99% accuracy based on in-house testing across more than 20 million articles; independent verification of this figure is not available, and AI detection results in general should be treated as estimates rather than proof.
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