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llama.cpp vs vLLM

The same facts for both, read from GitHub every night, and the relation a person reviewed.

llama.cppvLLM
LanguageC++Python
LicenceMITApache-2.0
Stars130k93k
Latestv0.6.0v0.31.0
Last push2026-10-062026-10-06
Release cadencetoo few releasesabout 14 days between releases
Active contributors173+ commit authors on the default branch in the last 90 days260+ commit authors on the default branch in the last 90 days
Flagsnonenone

How they relate

  • Both replace ChatGPT. Alternatives to ChatGPT →

    Partialllama.cppRuns open-weight models on CPU or GPU, with a built-in server and a minimal web chat.

    PartialvLLMServes open-weight models behind an OpenAI-compatible API, tuned for GPU throughput.

  • Both replace Claude. Alternatives to Claude →

    Partialllama.cppRuns open-weight models on CPU or GPU, with a built-in server and a minimal web chat.

    PartialvLLMServes open-weight models behind an OpenAI-compatible API.