Comparing Memory Systems for LLM Agents: Vector, Graph, and Event Logs
Table of contents High-Level Comparison 1. Vector Memory Systems 1.1 Plain Vector RAG 1.2 Tiered Vector Memory (MemGPT-Style Virtual Context) 2. Graph Memory Systems 2.1 Temporal Knowledge Graph Memory (Zep / Graphiti) 2.2 Knowledge-Graph RAG (GraphRAG) 3. Event and Execution Log Systems 3.1 Execution Logs and Checkpoints (ALAS, LangGraph) 3.2 Episodic Long-Term Memory Key Takeaways…
