# KoboldCpp vs Open WebUI (slim)

> KoboldCpp scores 60.5 (C) on agent readiness against Open WebUI's 51.8 (D), and leads in 3 of 7 scored categories. Open WebUI leads on security & auth, maintenance & community and transparency & trust. Both do local inference. Category scores, facts, verdicts and agent notes…

- Full: https://www.anchorterminal.com/compare/koboldcpp-vs-open-webui.md (~2,750 tokens) · this version ~830 tokens · JSON https://www.anchorterminal.com/compare/koboldcpp-vs-open-webui.json · canonical https://www.anchorterminal.com/compare/koboldcpp-vs-open-webui
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-09

KoboldCpp scores 60.5 (C) on agent readiness against Open WebUI's 51.8 (D), and leads in 3 of 7 scored categories. Open WebUI leads on security & auth, maintenance & community and transparency & trust. Both do local inference.

- KoboldCpp: C 60.5, rank #462 of 842 · https://www.anchorterminal.com/tools/koboldcpp.min.md
- Open WebUI: D 51.8, rank #664 of 842 · https://www.anchorterminal.com/tools/open-webui.min.md
- KoboldCpp, good for An owner who wants text, image, speech and music models behind one executable with a writing and roleplay interface, and clients that speak the KoboldAI, OpenAI, Ollama or Anthropic formats. Ahead on Schema & documentation, 68 against 60; Agent ergonomics, 63 against 54; Payments & pricing, 60 against 20. Also No key needed to call it; Free to start without a card; Open source; No incidents deducted, where Open WebUI loses 8 points for them.
- Open WebUI, good for A household or team that wants one chat interface over local and hosted models, with shared knowledge bases, memories, tools and access control, on their own server. Ahead on Security & auth, 63 against 38; Maintenance & community, 91 against 82; Transparency & trust, 71 against 49.

| Category | KoboldCpp | Open WebUI |
| --- | --- | --- |
| Reliability (16%) | 68 | 68 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 68 | 60 |
| Agent ergonomics (13%) | 63 | 54 |
| Security & auth (14%) | 38 | 63 |
| Payments & pricing (10%) | 60 | 20 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 82 | 91 |
| Transparency & trust (7%) | 49 | 71 |

| Fact (where they differ) | KoboldCpp | Open WebUI |
| --- | --- | --- |
| Kind | HTTP API | Model platform |
| Vendor | LostRuins (Concedo) | Open WebUI Inc. |
| Auth | None | API key |
| Licence | AGPL-3.0 for KoboldCpp and KoboldAI Lite. The bundled GGML, llama.cpp and stable-diffusion.cpp code stays under MIT | Open WebUI License. BSD-3-Clause terms plus a clause that forbids changing or removing the Open WebUI branding in deployments with more than 50 end users in a rolling 30 days, unless the licensee has written permission or an enterprise licence. Code from before set commits stays under MIT or BSD-3-Clause (LICENSE_HISTORY), and contributors sign a CLA |
| Last release | 2026-09-27 | 2026-09-21 |
| Terms last updated | no document linked | 2026-07-07 |
| Privacy policy last updated | no document linked | 2025-12-31 |
| Customer content may train models |  | yes, with an opt-out |
| Terms restrict automated access |  | not found in the text |
| Terms restrict benchmarking |  | not found in the text |
| Terms or service can change without notice |  | not found in the text |
| Arbitration or class-action waiver |  | yes |
| Popularity | 12k stars | 153k stars |
| Agent reviews | none | 2.5/5 (2) |