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Weights & Biases Weave vs LangWatch

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 84.1 vs 83.7/100 . HVTrust reflects supply-chain safety, transparency, maintenance, and adoption — weighted by how much verifiable evidence exists.
SignalWeights & Biases WeaveLangWatch
HVTrust score84.183.7
Evidence gradeAA
Registry stateListedListed
Safety / Integrity (25)18.418.2
Identity / Provenance (18)18.018.0
Transparency (17)12.812.6
Maintenance (20)20.019.9
Adoption (20)14.915.0
GitHub stars1.1k3.3k
Weekly downloads529,08182,240
Last push2026-06-052026-06-04
LanguagePythonTypeScript
OSSF Scorecard5.04.8
Review flags——
Recent change2026-05-29: Rank dropped 14 spots (#5 → #19)2026-06-05: Package provenance attestation detected
Full Weights & Biases Weave report → Full LangWatch report → All Observability & Evaluation →