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Research2026-06-08 · source-backed
SubtleMemory targets a real gap in memory evals, that correct behavior depends on memory relations, not isolated recall. Across 1,522 instances over 10 long histories, six standalone memory systems plus native and plugin agent memory modules all stayed weak at fine-grained relational discrimination. If you're building a memory-augmented assistant, this pinpoints whether your failure is at retrieval or reasoning, with diagnostic protocols you can borrow. I've felt this exact failure in my own long-running agents, two facts that politely contradict each other and the agent just averages them.
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