An independent, evidence-weighted trust comparison of two memory & knowledge — ranked on verifiable signals, not popularity.
| Signal | LanceDB | Vespa |
|---|---|---|
| HVTrust score | 87.1 | 86.1 |
| Evidence grade | B | B |
| Safety / Integrity (30) | 22.8 | 21.5 |
| Transparency (20) | 16.0 | 15.8 |
| Maintenance (20) | 19.3 | 20.0 |
| Adoption (10) | 9.0 | 8.8 |
| GitHub stars | 10.4k | 6.9k |
| Weekly downloads | 1,705,976 | 1,974,343 |
| Last push | 2026-05-30 | 2026-05-30 |
| Language | HTML | Java |
| OSSF Scorecard | 6.0 | 5.8 |