← SelfhostSpecs

Open WebUI — system requirementsverification pending

Self-hosted web interface for interacting with local and remote large language models. · website · repository

No official figure published for: minimum RAM, recommended RAM, minimum CPU cores, recommended CPU cores
No RAM/CPU figure published anywhere in the README or docs repo (independently re-checked). Three first-class install paths exist as separate image tags — ghcr.io/open-webui/open-webui:main (CPU-only, no bundled LLM runtime), :ollama (bundles Ollama, GPU or CPU), :cuda (GPU-accelerated) — actual footprint depends entirely on which local models are loaded, which the project doesn't specify a baseline for. This entry documents the :main image. Do not harvest the docs performance page's illustrative `memory: 8G / cpus: 4.0` compose-limits snippet as a figure — it is a commented "adjust based on usage" example, not a spec.
We publish nothing we can't source. Evidence of the gap.

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Image: ghcr.io/open-webui/open-webui:main · compressed size (amd64): 1741 MB · architectures: amd64, arm64 · source, retrieved 2026-07-30

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