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LangWatch vs Weights & Biases Weave

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

LangWatch ranks higher with an HVTrust score of 83.7 vs 83.5/100 . HVTrust reflects supply-chain safety, transparency, maintenance, and adoption — weighted by how much verifiable evidence exists.
SignalLangWatchWeights & Biases Weave
HVTrust score83.783.5
Evidence gradeAA
Registry stateListedListed
Safety / Integrity (25)18.218.4
Identity / Provenance (18)18.018.0
Transparency (17)12.612.8
Maintenance (20)19.919.9
Adoption (20)15.014.4
GitHub stars3.3k1.1k
Weekly downloads82,240218,416
Last push2026-06-042026-06-04
LanguageTypeScriptPython
OSSF Scorecard4.85.0
Review flags——
Recent change2026-06-05: Package provenance attestation detected2026-05-29: Rank dropped 14 spots (#5 → #19)
Full LangWatch report → Full Weights & Biases Weave report → All Observability & Evaluation →