An independent, evidence-weighted trust comparison of two memory & knowledge — ranked on verifiable signals, not popularity.
| Signal | Open WebUI | Mem0 |
|---|---|---|
| HVTrust score | 89.1 | 87.5 |
| Evidence grade | A | A |
| Registry state | Listed | Listed |
| Safety / Integrity (25) | 17.6 | 18.6 |
| Identity / Provenance (18) | 18.0 | 18.0 |
| Transparency (17) | 13.8 | 12.7 |
| Maintenance (20) | 19.9 | 18.9 |
| Adoption (20) | 19.8 | 19.3 |
| GitHub stars | 139.8k | 57.5k |
| Weekly downloads | 393,340 | 766,938 |
| Last push | 2026-06-02 | 2026-06-02 |
| Language | Python | Python |
| OSSF Scorecard | 6.2 | 4.9 |
| Review flags | — | — |
| Recent change | 2026-06-02: Activity score up 6pts (94 → 100) | 2026-05-29: HVTrust up 10.0pts (75.9 → 85.9) |