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Open WebUI vs vLLM

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

Open WebUIvLLM
LanguagePythonPython
LicenceOtherApache-2.0
Stars154k93k
Latestv0.11.4v0.31.0
Last push2026-10-062026-10-06
Release cadenceabout 13 days between releasesabout 14 days between releases
Active contributors19+ 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 →

    PartialOpen WebUIThe chat app, self-hosted, in front of Ollama or any OpenAI-compatible API. The model comes from elsewhere.

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

  • Both replace Claude. Alternatives to Claude →

    PartialOpen WebUIThe chat app, self-hosted, in front of Ollama or any OpenAI-compatible API. The model comes from elsewhere.

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