Every number in this article comes from reproducible evaluation scripts. Measurement basis: LoCoMo evidence-recall recall@10, lexical+vector fused retrieval, 1,536 answerable QA pairs.
The Starting Point: An Honest 47.1%
In our previous benchmark post, we published a number that wasn't pretty: LoCoMo evidence-recall recall@10 = 47.1%.
That was a pure lexical-matching baseline — ask "when did the user book the flight?", and the system only looks for literal overlaps in the memory text. What it finds is whatever happens to contain the exact words of the question; what it misses is the same fact phrased differently.
Two weeks later, that number became 84.6% (1294/1536 → 1299/1536 across two full runs). And if you look one stage earlier — at the retrieval stage, the seed-layer recall — we're already at 90%+. Among open-source memory engines that publish full-run LoCoMo results, these two numbers put us firmly in the first tier.
