HVTracker › Observability & Evaluation › Weights & Biases Weave vs Langfuse

Weights & Biases Weave vs Langfuse

An independent, evidence-weighted trust comparison of two observability & evaluation — ranked on verifiable signals, not popularity.

Weights & Biases Weave ranks higher with an HVTrust score of 84.9 vs 74.7/100 . HVTrust reflects supply-chain safety, transparency, maintenance, and adoption — weighted by how much verifiable evidence exists.
SignalWeights & Biases WeaveLangfuse
HVTrust score84.974.7
Evidence gradeBB
Safety / Integrity (30)22.616.1
Transparency (20)15.216.8
Maintenance (20)19.920.0
Adoption (10)7.29.8
GitHub stars1.1k28.2k
Weekly downloads218,1764,895,338
Last push2026-05-292026-05-30
LanguagePythonTypeScript
OSSF Scorecard5.26.8
Full Weights & Biases Weave report → Full Langfuse report → All Observability & Evaluation →