Logo

AI Memory

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

AI Memory — comparison of mem0, mempalace, supermemory, cognee, letta
Universal memory layer for AI Agents
mem0
The best-benchmarked open-source AI memory system. And it's free.
mempalace
Memory and context engine + app that is extremely fast, scalable, and can be run fully locally. The Memory API for the AI era.
supermemory
Cognee is the open-source AI memory platform for agents. Give your AI agents persistent long-term memory across sessions with a self-hosted knowledge graph engine.
cognee
Platform for stateful agents: AI with advanced memory that can learn and self-improve over time.
letta
Popularity
Stars60,64557,24328,32627,59023,747
Global Rank#330#372#1244#1309#1675
Weekly Activity(Jul 4 – Jul 11)
New Stars+5+4+1+9+3
Pushes14613270
Issues Closed00000
Community
Forks7,0567,3892,4642,7422,514
Contributors37812298193153
Open Issues5496193963449
Project Info
Ownermem0aiMemPalacesupermemoryaitopoteretesletta-ai
LicenseApache-2.0MITMITApache-2.0Apache-2.0
LanguageTypeScriptPythonTypeScriptPythonPython
CreatedJun 2023Apr 2026Feb 2024Aug 2023Oct 2023