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12 setups, 75 questions each

System	Setup	Top 1 %	Top 5 %	Reworded %	Newest first %	Write ms	Query ms	LLM calls per write	Packages
XERJ	BM25, default recall	54.7	73.3	24.0	13.3	11.3	3.8	0	0
XERJ	semantic, MiniLM	65.3	94.7	84.0	13.3	7.2	6.3	0	0
XERJ	hybrid, MiniLM	60.0	93.3	84.0	13.3	6.5	6.5	0	0
XERJ	hybrid + recency 0.3	44.0	68.0	36.0	93.3	6.5	6.8	0	0
Mem0	infer=False, MiniLM	64.0	88.0	68.0	13.3	10.2	22.4	0.0	50
Mem0	infer=True, Qwen2.5 3B	64.0	86.7	72.0	20.0	16523	29.1	1.0	50
MemPalace	default, MiniLM	57.3	84.0	56.0	13.3	21.2	22.7	0	86
ReMe	default, BM25	53.3	70.7	20.0	20.0	2.7	1.4	0	138
ReMe	hybrid, MiniLM	61.3	93.3	80.0	13.3	2.6	12.0	0	138
agentmemory	default, no key	53.3	74.7	28.0	13.3	4.4	4.8	0	143
mcp-memory-service	default, MiniLM	64.0	89.3	84.0	6.7	16.7	16.7	0	72
memvid	default, lexical	1.3	1.3	0.0	0.0	67.3	0.3	0	2

Runs in your browser and sends nothing. Click a column name to sort. Top 1 and Top 5: share of the 75 questions where a returned memory holds the right answer at rank 1 or in the first five. Reworded: the 25 questions asked in other words. Newest first: the 15 questions about a fact that changed, where the new value must rank above the old one. Times are medians on one shared 8 core box. Packages: resolved install size from deps.json. Raw data is in benchmarks/agent-memory in the XERJ repository.