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RisuAI vs Chai: catalog facts
RisuAI	Chai
Free Free and open source under the GPL-3.0 licence; model API costs depend on the provider you…	Freemium Free to download, with revenue from paid use inside the app.
Web, Self-hosted	Android, iOS
Works with many model providers, including OpenAI, Claude, Gemini and OpenRouter Group chats, lorebooks and expression images for characters	Large catalog of community-made characters Users can create their own characters and stories
Aimed at roleplay rather than general productivity chat No tagged releases on GitHub	Mobile only Aimed at entertainment and companionship, not productivity
Web application, Self-hosted	Downloadable app
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 1, 2026

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