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ZeroGPT vs Originality.ai: catalog facts
ZeroGPT	Originality.ai
Free The AI detector is offered free on the website.	Freemium Three free AI scans per day, with paid plans for more.
Web	Web, Browser extension
Free AI text detection in the browser Also checks images and video for AI generation	AI detection plus plagiarism, readability and fact checks Chrome and Firefox extensions with Google Docs support
AI detection results are estimates and can be wrong Text is sent to an online service	Free tier is limited to three scans a day AI detection results are estimates and can be wrong
Web application	Web application, Browser extension
Closed source	Closed source
License not stated	License not stated
Not stated if an account is needed	Not stated if an account is needed
Needs internet	Needs internet
Official website Full listing and sources Checked September 26, 2026	Official website Full listing and sources Checked September 26, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.