MemO(1) vs Mem0 · Public Evidence Report Created UTC: 2026-08-20T19:23:08.223108+00:00 Scope: Software validation only. FPGA and hardware timing were not touched in this batch. Backend implementation details are intentionally withheld. Run shape: 500 retrieval queries per condition. 5 retrieval repeats. 50 answer queries per condition. 5 answer repeats. Local Qwen 2.5 7B answer model. Mem0 used server Qdrant on the same workstation. 1000-turn exact recall: MemO(1): 100% retrieval accuracy · 0.24 ms p95. Mem0: 0.2% retrieval accuracy · 152.8548 ms p95. 1000-turn exact answer: MemO(1): 98% answer accuracy · 217.06 average Qwen prompt tokens. Mem0: 6% answer accuracy · 753.94 average Qwen prompt tokens. 1000-turn structured routing vs embedding retrieval: MemO(1): 100% retrieval accuracy · 0.6548 ms p95. Mem0: 10.2% top-1 retrieval accuracy · 28% top-5 · 189.241 ms p95. 1000-turn structured routing vs embedding answer: MemO(1): 98% answer accuracy · 218.86 average Qwen prompt tokens. Mem0: 30% answer accuracy · 696.4 average Qwen prompt tokens. Plain English: MemO(1) kept exact structured telemetry recall near-instant and bounded. Mem0 improved on fuzzy queries, but it failed exact structured recall at 1000-turn depth in this workload. Boundary: This is not a semantic-search head-to-head claim. The fuzzy-query track compares structured routing against embedding search on telemetry questions where stable structure exists. Deterministic timing claims remain FPGA-only.