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SillyTavern vs PolyBuzz: catalog facts
SillyTavern	PolyBuzz
Free Free and open source under the AGPL. You pay only for whatever model backend you connect…	Free The site advertises free chat; paid options are not described in the research.
Windows, macOS, Linux, Self-hosted	Web
Deep prompt control: character cards, lorebooks, world info, author's notes and templates Connects to local runners as well as commercial APIs	Very large library of user-made characters Browsable by genre and theme
A front end only; you must supply a model backend Setup involves Node or Docker rather than an installer	Built for entertainment and role-play, not productivity Character content is user-made and varies in quality and tone
Self-hosted	Web application
Open source	Closed source
License: AGPL-3.0	License not stated
No account needed	Not stated if an account is needed
Works offline	Needs internet
Official website Full listing and sources Checked September 21, 2026	Official website Full listing and sources Checked October 2, 2026

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