Systems
22 systems tracked, alphabetical — never by score. Every number on file, with its runner.
A-Mem
Rutgers (academic)
ByteRover
ByteRover
Cognee
Cognee (Berlin)
EmergenceMem
Emergence AI
forget
multi-turn inc (ours — unranked)
Hindsight
Vectorize
Honcho
Plastic Labs
LangMem
LangChain
Letta (MemGPT)
Letta AI — UC Berkeley spinout
LightMem
Zhejiang + NUS + Nanjing (academic)
Mastra
Mastra (Gatsby founders)
Mem0
Mem0 Inc. (YC)
MemMachine
MemVerge
Memobase
memodb-io
Memori
GibsonAI / Memori Labs
MemOS
MemTensor (Shanghai)
MemU
NevaMind-AI
MIRIX
MIRIX AI (UCSD/NYU founders)
OpenAI Memory (ChatGPT)
OpenAI (platform)
Papr
Papr (ex-Apple PM)
Supermemory
Supermemory (Dhravya Shah)
Zep (Graphiti)
Zep AI (YC W24)