Strongest public retrieval-substrate competitor. SmartSearch multi-step entity expansion and continual-learning architecture score 65.21/100 on the public-evidence benchmark. Midbrain's retrieval metrics are cited from third-party paper results (arXiv 2504.00553) — not independently rerun here. MemroOS leads on governance, orchestration, audit lineage, and operator-controlled memory promotion.
| Criterion | MemroOS | Midbrain |
|---|---|---|
| Recall Quality & Eval Maturity | 4.8/5 | 4.8/5 |
| Governed Memory, Audit & Permissions | 4.4/5 | 2.8/5 |
| Memory Model Depth & Typed Tiers | 4.2/5 | 4.3/5 |
| Agent Workflow Integration | 4.5/5 | 3.5/5 |
| Enterprise Deployment & Data Control | 4/5 | 3/5 |
| Performance, Latency & Cost | 3.5/5 | 4.5/5 |
| Observability & Self-Improvement | 4.4/5 | 3.5/5 |
| Portability & Open Exits | 4.2/5 | 3.2/5 |
MemroOS scored 84.06/100 versus Midbrain's 65.21/100 on the Marketplace Agentic Memory Benchmark. MemroOS leads on governed memory, orchestration, and observability. Strongest public retrieval-substrate competitor. SmartSearch multi-step entity expansion and continual-learning architecture score 65.21/100 on the public-evidence benchmark. Midbrain's retrieval metrics are cited from third-party paper results (arXiv 2504.00553) — not independently rerun here. MemroOS leads on governance, orchestration, audit lineage, and operator-controlled memory promotion.
MemroOS provides multi-tier typed memory (vector, graph, episodic, knowledge, skills), governed orchestration with audit lineage, and an operator NOC console. Midbrain is a Continual-learning memory substrate with SmartSearch retrieval with different architectural priorities.
Yes. MemroOS is local-first and self-hostable. Source-available under the PolyForm Small Business license.