Langfuse vs Opik
An independent, evidence-based trust comparison of Langfuse and Opik, two Observability & Evaluation projects in the HVTracker registry. Scores come from public, checkable signals — supply-chain provenance, OSSF Scorecard, maintenance, and adoption — not popularity.
Opik leads on trust — 78.4/100 (Grade B) vs 78.2/100 (Grade B), a 0.2-point gap. Full breakdown below.
| Signal | Langfuselangfuse/langfuse | Opikcomet-ml/opik |
|---|---|---|
| HVTrust score | 78.2 | 78.4 |
| Evidence grade | B | B |
| Coverage grade | A | A |
| Overall rank | #106 | #103 |
| Rank in Observability & Evaluation | #7 | #6 |
| GitHub stars | 34.1k | 21.8k |
| Last updated | today | today |
| Build provenance | No | Yes |
| OSSF Scorecard | 6.5 / 10 | — |
| License | NOASSERTION | Apache-2.0 |
| Downloads | 6.9M/wk | 428k/wk |
| Trust dimensions (points earned) | ||
| Safety / integrity / 25 | 12.7 | 12.1 |
| Identity & provenance / 18 | 10.8 | 18.0 |
| Transparency / 17 | 14.0 | 8.5 |
| Maintenance / 20 | 20.0 | 20.0 |
| Adoption / 20 | 20.0 | 17.9 |
| Runtime capability surface (full matrix) | ||
| MCP server | Implemented | Implemented |
| External providers | 1 — Anthropic | 4 — Amazon Bedrock, Anthropic, Multi-provider (LiteLLM), … |
| Requires API keys | Yes | No |
| Plugin surface | plugins | extensions |
| Provenance drift | Unknown | Partial |
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 →