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Osaurus vs PyGPT: catalog facts
Osaurus	PyGPT
Free Free and open source; cloud models are billed by their providers through your own API…	Free Free and open source; cloud models are billed by their providers through your own API…
macOS	Windows, macOS, Linux
Native inference engine for Apple Silicon Mixes local models and bring-your-own-key cloud models per agent	One app for many cloud providers and local Ollama models Agents, MCP tools, plugins and file RAG built in
macOS only for now Cloud models need your own paid API keys	Large feature set can be overwhelming Cloud models need your own paid API keys
Downloadable app	Downloadable app
Open source	Open source
License not stated	License not stated
No account needed	No account needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked September 26, 2026

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