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Witsy vs Osaurus: catalog facts
Witsy	Osaurus
Free The open-source software is available without a license fee. Hosting, hardware and…	Free Free and open source; cloud models are billed by their providers through your own API…
Windows, macOS, Linux	macOS
Works with local model servers as well as cloud APIs.	Native inference engine for Apple Silicon Mixes local models and bring-your-own-key cloud models per agent
Cloud connections require your own provider credentials.	macOS only for now Cloud models need your own paid API keys
Downloadable app	Downloadable app
Open source	Open source
License: AGPL-3.0	License not stated
Not stated if an account is needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked September 22, 2026	Official website Full listing and sources Checked October 1, 2026

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