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SillyTavern vs Sudowrite: catalog facts
SillyTavern	Sudowrite
Free Free and open source under the AGPL. You pay only for whatever model backend you connect…	Freemium Can be tried for free, with paid plans listed on the pricing page.
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	Tools built specifically for fiction, such as Describe and brainstorming Uses Muse, a model trained for fiction writing
A front end only; you must supply a model backend Setup involves Node or Docker rather than an installer	Web only, with no offline use indicated Requires an account to use
Self-hosted	Web application
Open source	Closed source
License: AGPL-3.0	License not stated
No account needed	Account needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked September 21, 2026	Official website Full listing and sources Checked September 23, 2026

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