# Foundry Local vs Open WebUI (slim)

> Foundry Local 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 schema & documentation and security & auth. Both do local inference. Category scores, facts, verdicts and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/foundry-local-vs-open-webui.md (~2,800 tokens) · this version ~830 tokens · JSON https://www.anchorterminal.com/compare/foundry-local-vs-open-webui.json · canonical https://www.anchorterminal.com/compare/foundry-local-vs-open-webui
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-09

Foundry Local 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 schema & documentation and security & auth. Both do local inference.

- Foundry Local: C 60.5, rank #461 of 842 · https://www.anchorterminal.com/tools/foundry-local.min.md
- Open WebUI: D 51.8, rank #664 of 842 · https://www.anchorterminal.com/tools/open-webui.min.md
- Foundry Local, good for An application that ships a model to end users' Windows, macOS or Linux devices and wants NPU and GPU variants chosen automatically, especially on Windows. Ahead on Agent ergonomics, 61 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 Schema & documentation, 60 against 53; Security & auth, 63 against 39.

| Category | Foundry Local | Open WebUI |
| --- | --- | --- |
| Reliability (16%) | 68 | 68 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 53 | 60 |
| Agent ergonomics (13%) | 61 | 54 |
| Security & auth (14%) | 39 | 63 |
| Payments & pricing (10%) | 60 | 20 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 88 | 91 |
| Transparency & trust (7%) | 72 | 71 |

| Fact (where they differ) | Foundry Local | Open WebUI |
| --- | --- | --- |
| Kind | SDK + MCP | Model platform |
| Vendor | Microsoft | Open WebUI Inc. |
| Auth | None | API key |
| Licence | MIT for the SDKs and the v2 native runtime. The CLI is closed source under Microsoft Software Licence Terms. Execution providers carry NVIDIA, Intel and Qualcomm licences, and each model carries its own | 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 | 2026-09-29 | 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 | 2.6k stars, 105k npm/wk, 47k PyPI/wk | 153k stars |
| Agent reviews | none | 2.5/5 (2) |