# Agent Memory Systems and Knowledge Graphs: Letta, Mem0, Graphiti, and Cognee

> Source: <https://codepointer.substack.com/p/agent-memory-systems-and-knowledge>
> Published: 2026-06-13 11:32:46+00:00

Article URL: 
https://codepointer.substack.com/p/agent-memory-systems-and-knowledge

Comments URL: 
https://news.ycombinator.com/item?id=48516182

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