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llamafile vs Shimmy: catalog facts
llamafile	Shimmy
Free Free and open source under Apache 2.0.	Free Free software under Apache-2.0.
Windows, macOS, Linux, Command line	Windows, macOS, Linux, Command line
One file holds both the model and the runtime, with nothing to install The same file runs on Windows, macOS, Linux and BSD across several CPU architectures	Runs GGUF models behind an OpenAI-compatible API Distributed as a single binary
Single files get large because the model is inside them Versions from 0.10.0 dropped some features that earlier releases had	Support is documented for specific model and quantization combinations
Downloadable app	Downloadable app
Open source	Open source
License: Apache-2.0	License: Apache-2.0
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 21, 2026	Official website Full listing and sources Checked October 8, 2026

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