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Mem0 vs Vespa

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

Mem0 ranks higher with an HVTrust score of 87.5 vs 86.2/100 . HVTrust reflects supply-chain safety, transparency, maintenance, and adoption — weighted by how much verifiable evidence exists.
SignalMem0Vespa
HVTrust score87.586.2
Evidence gradeAA
Registry stateListedListed
Safety / Integrity (25)18.817.3
Identity / Provenance (18)18.018.0
Transparency (17)12.813.3
Maintenance (20)18.620.0
Adoption (20)19.317.6
GitHub stars58.1k7.0k
Weekly downloads796,4642,040,709
Last push2026-06-082026-06-11
LanguagePythonJava
OSSF Scorecard5.05.7
Review flags
Recent change2026-05-29: HVTrust up 10.0pts (75.9 → 85.9)2026-06-01: Activity score up 25pts (61 → 86)
Full Mem0 report → Full Vespa report → All Memory & Knowledge →