An independent, evidence-based trust comparison of Guardrails AI and Llama Guard, two Security & Guardrails projects in the HVTracker registry. Scores come from public, checkable signals — supply-chain provenance, OSSF Scorecard, maintenance, and adoption — not popularity.
| Signal | Guardrails AIguardrails-ai/guardrails | Llama Guardmeta-llama/PurpleLlama |
|---|---|---|
| HVTrust score | 69.6 | 45.6 |
| Evidence grade | B | D |
| Overall rank | #64 | #140 |
| Rank in Security & Guardrails | #1 | #3 |
| GitHub stars | 7.1k | 4.3k |
| Last updated | 4d ago | 3d ago |
| Build provenance | Yes | No |
| OSSF Scorecard | 6.5 / 10 | 5.9 / 10 |
| License | Apache-2.0 | NOASSERTION |
| Downloads | 41k/wk | — |
| Trust dimensions (points earned) | ||
| Safety / integrity / 25 | 20.6 | 7.4 |
| Identity & provenance / 20 | 18.0 | 10.8 |
| Transparency / 17 | 14.0 | 13.5 |
| Maintenance / 20 | 17.6 | 12.4 |
| Adoption / 20 | 15.4 | 8.7 |
How to read this: HVTrust (0–100) weighs supply-chain signals (provenance, OSSF Scorecard, signed commits, open license) alongside real-world adoption, scaled by an evidence-confidence factor. Grade bands: A ≥ 80, B ≥ 65, C ≥ 50, D < 50. Signals refresh daily. Full methodology v4.0 →