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AI Memory

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

AI Memory — comparison of mem0, mempalace, letta, supermemory, cognee
Universal memory layer for AI Agents
mem0
The best-benchmarked open-source AI memory system. And it's free.
mempalace
Letta is the platform for building stateful agents: AI with advanced memory that can learn and self-improve over time.
letta
Memory engine and app that is extremely fast, scalable. The Memory API for the AI era.
supermemory
Memory control plane for AI Agents in 6 lines of code
cognee
Popularity
Stars56,96252,97522,98422,68317,525
Global Rank#344#395#1707#1746#2504
Weekly Activity(May 20 – May 27)
New Stars+41+39+13+8+12
Pushes432504237
Issues Closed51500
Community
Forks6,4866,9912,4512,0631,847
Contributors3139115376161
Open Issues411567561772
Project Info
Ownermem0aiMemPalaceletta-aisupermemoryaitopoteretes
LicenseApache-2.0MITApache-2.0MITApache-2.0
LanguagePythonPythonPythonTypeScriptPython
CreatedJun 2023Apr 2026Oct 2023Feb 2024Aug 2023