Mem0 vs Zep vs Letta vs Cognee vs LangMem vs Mnemoverse: An Honest Map of Agent Memory in 2026
The short answer up front: there is no best agent memory tool. These six projects solve genuinely different problems that happen to share the word "memory," and picking between them by star count or a leaderboard screenshot is how teams end up running a temporal knowledge graph to store "user prefers dark mode." I am Edward, co-founder of Mnemoverse. One of the six tools below is mine, so read…
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