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Jan vs Msty: catalog facts
Jan	Msty
Free Free and open source. Using a third-party cloud model through Jan costs whatever that…	Freemium A free tier of the desktop workspace is available. Larger workspace features require a…
Windows, macOS, Linux	Windows, macOS, Linux
Runs fully offline on your own computer when you want it to Same interface for local models and for OpenAI, Anthropic, Google, Mistral and others	It runs local models without a separate server install and keeps chats, prompt libraries and attached knowledge bases…
Still pre-1.0 and moving fast; features appear and change between releases Adding a cloud provider means putting that provider’s API key into the app	The application is closed source, and the more capable workspace features sit behind a paid plan.
Downloadable app	Downloadable app
Open source	Closed source
License: Apache-2.0	License not stated
No account needed	Not stated if an account is needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked September 20, 2026	Official website Full listing and sources Checked September 22, 2026

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