An independent, evidence-weighted trust comparison of two memory & knowledge — ranked on verifiable signals, not popularity.
| Signal | Open WebUI | Mem0 |
|---|---|---|
| HVTrust score | 88.6 | 88.0 |
| Evidence grade | A | A |
| Registry state | Listed | Listed |
| Safety / Integrity (25) | 17.3 | 18.8 |
| Identity / Provenance (18) | 18.0 | 18.0 |
| Transparency (17) | 13.5 | 12.8 |
| Maintenance (20) | 20.0 | 19.1 |
| Adoption (20) | 19.8 | 19.3 |
| GitHub stars | 140.0k | 57.7k |
| Weekly downloads | 393,340 | 767,327 |
| Last push | 2026-06-04 | 2026-06-04 |
| Language | Python | Python |
| OSSF Scorecard | 5.9 | 5.0 |
| Review flags | — | — |
| Recent change | 2026-06-02: Activity score up 6pts (94 → 100) | 2026-05-29: HVTrust up 10.0pts (75.9 → 85.9) |