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Mar 19, 2026 · Artificial Intelligence

Understanding Agent Memory: From Stateless LLMs to Persistent Multi‑Layer Architecture

The article analyzes why large language models are inherently stateless, outlines a four‑layer memory architecture for AI agents—including working, situational, semantic, and procedural memory—and explains write, retrieval, and forgetting mechanisms along with current tooling such as Mem0 and Letta.