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RisuAI vs PolyBuzz: catalog facts
RisuAI	PolyBuzz
Free Free and open source under the GPL-3.0 licence; model API costs depend on the provider you…	Free The site advertises free chat; paid options are not described in the research.
Web, Self-hosted	Web
Works with many model providers, including OpenAI, Claude, Gemini and OpenRouter Group chats, lorebooks and expression images for characters	Very large library of user-made characters Browsable by genre and theme
Aimed at roleplay rather than general productivity chat No tagged releases on GitHub	Built for entertainment and role-play, not productivity Character content is user-made and varies in quality and tone
Web application, Self-hosted	Web application
Open source	Closed source
License: GPL-3.0	License not stated
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Needs internet
Official website Full listing and sources Checked September 26, 2026	Official website Full listing and sources Checked October 2, 2026

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