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Winston AI vs Pangram: catalog facts
Winston AI	Pangram
Freemium Free to start with no credit card required; paid use and sales-led plans are offered.	Freemium Free credits and three free image scans per day, with paid plans for more use.
Web	Web, Browser extension
Detects text from ChatGPT, Claude, Gemini and other models Plagiarism checking in the same tool	Detects AI-generated and AI-assisted text Separate image detection for AI-generated pictures
AI detection results are estimates and can be wrong Full use requires an account	Free use is limited by credits and daily scans Detection results are probabilistic and can be wrong
Web application	Web application, Browser extension
Closed source	Closed source
License not stated	License not stated
Account 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 October 1, 2026

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