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Pangram vs Copyleaks: catalog facts
Pangram	Copyleaks
Freemium Free credits and three free image scans per day, with paid plans for more use.	Paid A commercial service; the homepage directs organisations to request a demo.
Web, Browser extension	Web
Detects AI-generated and AI-assisted text Separate image detection for AI-generated pictures	Detects both plagiarism and AI-generated text Checks source code for plagiarism
Free use is limited by credits and daily scans Detection results are probabilistic and can be wrong	Aimed mainly at institutions and businesses AI detection results are probabilistic and can be wrong
Web application, Browser extension	Hosted service
Closed source	Closed source
License not stated	License not stated
Not stated if an account is needed	Account needed
Needs internet	Needs internet
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked September 26, 2026

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