AI Agent Memory Systems 2026: Mem0, Letta, Zep, Cognee, Pinecone Assistant and LangMem Compared for Swiss Multi-Agent Stacks
Mem0, Letta (formerly MemGPT), Zep, Cognee, Pinecone Assistant and LangMem in a deep comparison for Swiss multi-agent stacks. Recall accuracy, latency, FINMA / revDSG compliance, knowledge graph architecture and self-hosted options — based on 21 production mazdek agent-memory mandates and over 4.8 billion memory operations 2024-2026.