SuperLocalMemory vs Mem0: When Zero-Cloud Beats Managed Memory (Benchmark Analysis)

How a local-first system with mathematical foundations scores 74.8% on LoCoMo — higher than Mem0 — without a single cloud API call. The Setup I've spent the last year building SuperLocalMemory V3 — an open-source AI agent memory system that uses information geometry instead of cloud LLMs for core operations. Before I talk about how we compare, I want to be clear: this is not a hit piece on Mem0. They've built something genuinely useful with a great team. This is a factual benchmark analysis for developers choosing an architecture. The key question: does local-first memory with mathematical foundations perform better than cloud-hosted managed memory? On LoCoMo (Long Conversation Memory benchmark), the answer is yes. The Numbers System LoCoMo Score Cloud LLM Required Cost SLM V3 Mode C 87.7% Yes (synthesis only) $0 base (your API key) SLM V3 Mode A 74.8% No $0 forever Mem0 (self-reported) ~66% Yes Subscription Mem0 (independent) ~58% Yes Subscription SLM V3 Zero-LLM 60.4% No LLM at all $