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Msty vs PyGPT: catalog facts
Msty	PyGPT
Freemium A free tier of the desktop workspace is available. Larger workspace features require a…	Free Free and open source; cloud models are billed by their providers through your own API…
Windows, macOS, Linux	Windows, macOS, Linux
It runs local models without a separate server install and keeps chats, prompt libraries and attached knowledge bases…	One app for many cloud providers and local Ollama models Agents, MCP tools, plugins and file RAG built in
The application is closed source, and the more capable workspace features sit behind a paid plan.	Large feature set can be overwhelming Cloud models need your own paid API keys
Downloadable app	Downloadable app
Closed source	Open source
License not stated	License not stated
Not stated if an account is needed	No account needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 22, 2026	Official website Full listing and sources Checked September 26, 2026

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