Chroma vs FAISS
An independent, evidence-based trust comparison of Chroma and FAISS, two Memory & Knowledge projects in the HVTracker registry. Scores come from public, checkable signals — supply-chain provenance, OSSF Scorecard, maintenance, and adoption — not popularity.
FAISS leads on trust — 75.5/100 (Grade B) vs 74.4/100 (Grade B), a 1.1-point gap. Full breakdown below.
| Signal | Chromachroma-core/chroma | FAISSfacebookresearch/faiss |
|---|---|---|
| HVTrust score | 74.4 | 75.5 |
| Evidence grade | B | B |
| Coverage grade | A | A |
| Overall rank | #100 | #89 |
| Rank in Memory & Knowledge | #10 | #7 |
| GitHub stars | 29.1k | 40.7k |
| Last updated | today | 1d ago |
| Build provenance | No | No |
| OSSF Scorecard | 4.4 / 10 | 6.1 / 10 |
| License | Apache-2.0 | MIT |
| Downloads | 2.9M/wk | 3.9M/wk |
| Trust dimensions (points earned) | ||
| Safety / integrity / 25 | 10.5 | 7.6 |
| Identity & provenance / 18 | 10.8 | 10.8 |
| Transparency / 17 | 12.2 | 13.7 |
| Maintenance / 20 | 18.6 | 19.6 |
| Adoption / 20 | 19.3 | 19.8 |
| Runtime capability surface (full matrix) | ||
| MCP server | Declared | — |
| External providers | 3 — Cohere, Google Gemini, OpenAI | — |
| Requires API keys | No | No |
| Plugin surface | — | — |
| Provenance drift | Match | Match |
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 v4.3 →