GPUStack vs Open WebUI

GPUStack vs Open WebUI
Fact	GPUStack	Open WebUI
Language	Python	Python
Licence	Apache-2.0	Other
Stars	5.8k	154k
Latest	v2.2.3	v0.11.4
Last push	2026-09-30	2026-10-06
Release cadence	too few releases	about 13 days between releases
Active contributors	27 commit authors on the default branch in the last 90 days	19+ commit authors on the default branch in the last 90 days
Flags	none	none

How they relate

Both replace ChatGPT. Alternatives to ChatGPT →
PartialGPUStackManages a cluster of GPUs and serves open-weight models across it behind an OpenAI-compatible API.
PartialOpen WebUIThe chat app, self-hosted, in front of Ollama or any OpenAI-compatible API. The model comes from elsewhere.

v2.3.0rc22026-09-30pre-release
v2.3.0rc12026-09-01pre-release
v2.2.32026-07-31Fixed an issue where vLLM services routed through GPUStack were incompatible with Claude Code. (Issue #5934)
v2.2.3rc12026-07-31pre-release
v2.2.22026-07-24This release fixes two security vulnerabilities. Users are strongly advised to upgrade immediately.

v0.11.42026-09-21📉 Far smaller slim image. A slim build now comes down at around 175 MB, near enough 89% smaller than the last release,…
v0.11.32026-08-31♿ Accessibility mode reaches the menus. Accessibility mode now marks the menu entry you are pointing at and the model a…
v0.11.22026-08-31🖼️ Richer previews for terminal files. Word documents and slide decks produced in the terminal are now previewed as th…
v0.11.12026-08-25🚦 Human in the loop tool approval. Where an administrator has turned it on, you can switch a conversation from letting…
v0.11.02026-07-27🎨 Redesigned interface. Open WebUI has been visually rebuilt from the ground up. All aspects of the User Interface, fr…

unsigned The latest release, v2.2.3, carries no signature GitHub could verify.

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✓ signed The latest release, v0.11.4, carries a signature GitHub verified.

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