Navigate the landscape of AI memory performance

Updated Apr 2026

Top Memory Systems

Ranked by composite capability score

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Architecture

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Showing 234 of 234 systems

SystemLONG CONTEXTMULTI-TURNCROSS-SESSIONMULTI-HOP QAAGENT TASKPERSONALIZATIONFACTUALITY
SystemTypeLongMemEvalLoCoMoBABILongRULERNIAHLooGLELongBench∞BenchMultiHop-RAGHotpotQAPerLTQAMemoryBankRAGASAgentBench-Mem
Mem0
Mem0
Agent66.968.578
Letta
Letta (formerly MemGPT)
Agent60.464.252.7
Zep
Zep AI
Agent75.171.364.8
Cognee
Cognee
RAG57.258.671.4
LangMem
LangChain
Agent58.361
Memori
GibsonAI
Agent54.872.6
Memary
Kingjulio8238
Agent52.754.2
MemoryScope
Alibaba ModelScope
Agent63.774.3
Graphiti
Zep AI
KG73.266.462.1
txtai
NeuML
RAG49.568.9
LlamaIndex Memory
LlamaIndex
RAG56.872.1
Haystack Memory
deepset
RAG51.270.4
ChatGPT Memory
OpenAI
Personal61.570.8
Claude Projects
Anthropic
Personal6476.5
Gemini Memory
Google
Personal62.371.6
Copilot Memory
Microsoft
Personal59.769.4
Pinecone
Pinecone Systems
RAG52.474.2
Weaviate
Weaviate
RAG53.173
Qdrant
Qdrant
RAG51.872.6
Chroma
Chroma
RAG49.770.5
234 systems · Page 1 of 12

MEMORY ARENA

Built by Founsi · Updated Apr 2026