LibreChat vs Open WebUI
Self-host pick — both replace ChatGPT (AI chat assistant (consumer UI)).
Both LibreChat and Open WebUI self-host as a replacement for ChatGPT (AI chat assistant (consumer UI)). Pick Open WebUI if you want the lighter footprint — 10min docker-compose (Open WebUI + Ollama), $10 vps for the ui; the model server adds the real cost — $0 on a workstation gpu, $200+/mo on cloud gpu. Pick LibreChat if you need power users who want one chat UI in front of many providers — switch models mid-conversation, fork threads, plugin support — 20min docker-compose (LibreChat + Mongo + Meilisearch) and $10-15 vps for the app stack; same model-server caveat as open webui.
| LibreChatopen-source | Open WebUIopen-source | |
|---|---|---|
| License | MIT | BSD-3-Clause |
| Setup time | 20min docker-compose (LibreChat + Mongo + Meilisearch) | 10min docker-compose (Open WebUI + Ollama) |
| Monthly cost | $10-15 VPS for the app stack; same model-server caveat as Open WebUI. | $10 VPS for the UI; the model server adds the real cost — $0 on a workstation GPU, $200+/mo on cloud GPU. |
| GitHub | danny-avila/LibreChat | open-webui/open-webui |
| Replaces | ChatGPT | ChatGPT |
Good fit for
LibreChat
Power users who want one chat UI in front of many providers — switch models mid-conversation, fork threads, plugin support.
Weak at:Heavier stack (Mongo + Meilisearch + RAG service) — overkill for single-user installs.
Open WebUI
Teams that want a ChatGPT-shaped multi-user web app with RBAC, prompt templates, and a built-in RAG knowledge base.
Weak at:Image generation and voice mode — these need bolt-on integrations (e.g. Automatic1111 for SD) rather than working out of the box.
In a terminal? npx -y github:SolvoHQ/os-alt-cli chatgpt prints ChatGPT's self-host options including both —
how the CLI works →
FAQ
Which is easier to self-host, LibreChat or Open WebUI?
LibreChat: 20min docker-compose (LibreChat + Mongo + Meilisearch). Open WebUI: 10min docker-compose (Open WebUI + Ollama).
What does each cost to run?
LibreChat: $10-15 VPS for the app stack; same model-server caveat as Open WebUI.. Open WebUI: $10 VPS for the UI; the model server adds the real cost — $0 on a workstation GPU, $200+/mo on cloud GPU.. Both projects are free and open source.
Do LibreChat and Open WebUI replace the same SaaS?
Yes — both are open-source alternatives to ChatGPT.