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SillyTavern vs NovelAI: catalog facts
SillyTavern	NovelAI
Free Free and open source under the AGPL. You pay only for whatever model backend you connect…	Freemium Story and image generation can be started for free, with paid subscriptions.
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	Writing space designed for co-authoring fiction Tracks story worlds and characters
A front end only; you must supply a model backend Setup involves Node or Docker rather than an installer	Image generation is focused on anime style Runs only as an online service
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 September 26, 2026

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