llama.cpp
LLM inference in C/C++ with broad hardware support and aggressive quantization
llama.cpp is a C/C++ inference engine for large language models, designed to run efficiently on CPUs, GPUs, and Apple Silicon. It pioneered the GGUF quantization format and the broader local-LLM tooling space. Supports most popular open-source models including Llama, Mistral, Qwen, Gemma, and Phi. Used as the underlying engine by Ollama, LM Studio, GPT4All, and many other local-LLM tools. Maintained by the ggml-org community.
Pricing: Free
llama.cpp Alternatives
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GPT4All
Desktop app and Python SDK for running open-source LLMs locally on any device
Jan
Open-source desktop app for running LLMs locally with a clean GUI
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