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AI Memory

Memory layers and engines for giving AI agents persistent, long-term memory

AI Memory — comparison of mem0, mempalace, cognee, supermemory, letta
The Memory Layer for AI Agents - Drop-in memory infrastructure for AI agents and apps. Context that persists. Built for production.
mem0
The best-benchmarked open-source AI memory system. And it's free.
mempalace
Cognee is the open-source AI memory platform for agents. Give your AI agents persistent long-term memory with small models for free
cognee
Memory and context engine + app that is extremely fast, scalable, and can be run fully locally. The Memory API for the AI era.
supermemory
Platform for stateful agents: AI with advanced memory that can learn and self-improve over time.
letta
Popularity
Stars67,37659,62332,46931,27425,178
Global Rank#303#390#1083#1162#1662
Weekly Activity(Oct 11 – Oct 17)
New Stars+446+156+520+108+95
Pushes121050
Issues Closed00100
Community
Forks7,9487,5633,3892,7492,649
Contributors410163328114155
Open Issues842823832340
Project Info
Ownermem0aiMemPalacetopoteretessupermemoryailetta-ai
LicenseApache-2.0MITApache-2.0MITApache-2.0
LanguagePythonPythonPythonTypeScript—
CreatedJun 2023Apr 2026Aug 2023Feb 2024Oct 2023