{"slug": "agent-memory-systems-and-knowledge-graphs-letta-mem0-graphiti-and-cognee", "title": "Agent Memory Systems and Knowledge Graphs: Letta, Mem0, Graphiti, and Cognee", "summary": "A developer compares four agent memory systems—Letta, Mem0, Graphiti, and Cognee—highlighting their approaches to knowledge graphs and long-term memory for AI agents. The analysis covers each system's architecture, integration complexity, and suitability for different use cases.", "body_md": "Article URL: \nhttps://codepointer.substack.com/p/agent-memory-systems-and-knowledge\n\nComments URL: \nhttps://news.ycombinator.com/item?id=48516182\n\nPoints: 1\n\n# Comments: 0", "url": "https://wpnews.pro/news/agent-memory-systems-and-knowledge-graphs-letta-mem0-graphiti-and-cognee", "canonical_source": "https://codepointer.substack.com/p/agent-memory-systems-and-knowledge", "published_at": "2026-06-13 11:32:46+00:00", "updated_at": "2026-06-13 11:50:35.501850+00:00", "lang": "en", "topics": ["artificial-intelligence", "ai-agents", "ai-tools", "ai-products", "developer-tools"], "entities": ["Letta", "Mem0", "Graphiti", "Cognee"], "alternates": {"html": "https://wpnews.pro/news/agent-memory-systems-and-knowledge-graphs-letta-mem0-graphiti-and-cognee", "markdown": "https://wpnews.pro/news/agent-memory-systems-and-knowledge-graphs-letta-mem0-graphiti-and-cognee.md", "text": "https://wpnews.pro/news/agent-memory-systems-and-knowledge-graphs-letta-mem0-graphiti-and-cognee.txt", "jsonld": "https://wpnews.pro/news/agent-memory-systems-and-knowledge-graphs-letta-mem0-graphiti-and-cognee.jsonld"}}