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Jan vs Gai: catalog facts
Jan	Gai
Free Free and open source. Using a third-party cloud model through Jan costs whatever that…	Free Free download; listed on Flathub under GPL-3.0-or-later.
Windows, macOS, Linux	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	Prompts and generated content stored locally No account needed for core features
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	Generation depends on the developer's server APIs Little public detail on which models are used
Downloadable app	Downloadable app
Open source	Open source
License: Apache-2.0	License: GPL-3.0-or-later
No account needed	No account needed
Works offline	Needs internet
Official website Full listing and sources Checked September 20, 2026	Official website Full listing and sources Checked October 1, 2026

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