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

Weights & Biases Weave vs Promptfoo

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 73.8/100 . HVTrust reflects supply-chain safety, transparency, maintenance, and adoption — weighted by how much verifiable evidence exists.
SignalWeights & Biases WeavePromptfoo
HVTrust score84.973.8
Evidence gradeBB
Safety / Integrity (30)22.615.0
Transparency (20)15.210.0
Maintenance (20)19.920.0
Adoption (10)7.28.8
GitHub stars1.1k21.7k
Weekly downloads218,176251,066
Last push2026-05-292026-05-30
LanguagePythonTypeScript
OSSF Scorecard5.2—
Full Weights & Biases Weave report → Full Promptfoo report → All Observability & Evaluation →