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llama.cpp vs vLLM: catalog facts
llama.cpp	vLLM
Free Free and open source under the MIT licence.	Free Free and open source under the Apache-2.0 license.
Windows, macOS, Linux, Android, Command line	Linux, Command line
No Python and no dependencies; one binary runs the model Quantisation down to 1.5 bits fits big models into small memory	High-throughput serving suited to production-scale local deployments Apache-2.0 licensed and actively developed
Command line first; the web interface is basic next to dedicated apps Quantising hard reduces answer quality, and the trade-off is yours to judge	Aimed at developers deploying models rather than casual end users Requires appropriate GPU hardware for good performance
Downloadable app	Downloadable app, Self-hosted
Open source	Open source
License: MIT	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 September 22, 2026

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