Unverified50% confidenceFactExact time
In the LongMemEval test, Hy Memory still scored 45% when using a larger retrieval limit (40 memories, about 7,900 characters), indicating that information loss occurs in the writing stage where conversations are converted into facts rather than in the retrieval stage.
1
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50%
Confidence
Short-term (~14 days)
Relevance
10/16/2026
First Seen
Valid until: 10/30/2026
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Related Claims
UnverifiedThe most common deviation in the first week or two of using a memory system is over-writing, saving a large amount of temporary information as rules as well, which degrades recall quality; afterward it is easy to swing to the other extreme of recording nothing and falling back to the old path of repeated explanations.77% similarUnverifiedIf fact extraction granularity is too coarse, it leads to overgeneralization and false triggering; if too fine, it cannot be reused across tasks, degrading the memory system into a simple dialogue cache.73% similarUnverifiedThe bottleneck in agent memory lies in the write path, yet most memory benchmarks (such as LongBench and Needle-in-a-Haystack) only test long-context retrieval and reasoning, implicitly assuming that memory has already been written correctly.72% similar
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