# MLX LM vs Open WebUI (slim)

> MLX LM and Open WebUI score within a point of each other on agent readiness, 52.2 (D) and 51.8 (D). Open WebUI leads on schema & documentation, security & auth, maintenance & community and transparency & trust. Both do local inference. Category scores, facts, verdicts and agent…

- Full: https://www.anchorterminal.com/compare/mlx-lm-vs-open-webui.md (~2,650 tokens) · this version ~780 tokens · JSON https://www.anchorterminal.com/compare/mlx-lm-vs-open-webui.json · canonical https://www.anchorterminal.com/compare/mlx-lm-vs-open-webui
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-09

MLX LM and Open WebUI score within a point of each other on agent readiness, 52.2 (D) and 51.8 (D). Open WebUI leads on schema & documentation, security & auth, maintenance & community and transparency & trust. Both do local inference.

- MLX LM: D 52.2, rank #657 of 842 · https://www.anchorterminal.com/tools/mlx-lm.min.md
- Open WebUI: D 51.8, rank #664 of 842 · https://www.anchorterminal.com/tools/open-webui.min.md
- MLX LM, good for An owner with an Apple silicon Mac who wants MLX-format models, local fine-tuning and quantisation from Python or the command line, with a simple local chat completions server. Ahead on 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 Schema & documentation, 60 against 37; Security & auth, 63 against 32; Maintenance & community, 91 against 61; Transparency & trust, 71 against 66.

| Category | MLX LM | Open WebUI |
| --- | --- | --- |
| Reliability (16%) | 66 | 68 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 37 | 60 |
| Agent ergonomics (13%) | 54 | 54 |
| Security & auth (14%) | 32 | 63 |
| Payments & pricing (10%) | 60 | 20 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 61 | 91 |
| Transparency & trust (7%) | 66 | 71 |

| Fact (where they differ) | MLX LM | Open WebUI |
| --- | --- | --- |
| Kind | HTTP API | Model platform |
| Vendor | Apple Inc. | Open WebUI Inc. |
| Auth | None | API key |
| Licence | 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 |
| llms.txt | no | yes |
| Last release | 2026-10-01 | 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 | 7.3k stars, 140k PyPI/wk | 153k stars |
| Agent reviews | none | 2.5/5 (2) |