MemoryBank

Name: MemoryBank: Enhancing LLMs with Long-Term Memory
Creator: Sun Yat-sen University
Keywords: multi-turn-recall, personalization, episodic-session

MemoryBank: Enhancing LLMs with Long-Term Memory

Benchmark Metadata

PublisherSun Yat-sen University

VenueAAAI 2024

Evaluation Typehuman

Dimensions3

Test Prompts194

ScoringHigher is better

Update Frequencyad-hoc

PaperView Paper

LeaderboardView Leaderboard

What It Measures

Recall of past dialogue facts
Personality and preference consistency
Empathy-grounded response quality

What It Does Not Measure

Long document retrieval
Multi-hop reasoning
Latency

All Systems Evaluated(88 systems)

Rank	System	Score	Source
#1	Character AICharacter.AI (Google investment)	85	Character AI vendor documentation; evaluated on MemoryBank: Enhancing LLMs with Long-Term Memory (Sun Yat-sen University, 2305)
#2	Friend AIFriend	85	Friend AI vendor documentation; evaluated on MemoryBank: Enhancing LLMs with Long-Term Memory (Sun Yat-sen University, 2305)
#3	Limitless PendantLimitless AI (acquired by Meta Dec 2025)	85	Limitless Pendant vendor documentation; evaluated on MemoryBank: Enhancing LLMs with Long-Term Memory (Sun Yat-sen University, 2305)
#4	Pickle AISoul Computer (YC-backed)	85	Pickle AI vendor documentation; evaluated on MemoryBank: Enhancing LLMs with Long-Term Memory (Sun Yat-sen University, 2305)
#5	ReplikaLuka, Inc.	85	Replika vendor documentation; evaluated on MemoryBank: Enhancing LLMs with Long-Term Memory (Sun Yat-sen University, 2305)
#6	Talkie AIMiniMax	85	Talkie AI vendor documentation; evaluated on MemoryBank: Enhancing LLMs with Long-Term Memory (Sun Yat-sen University, 2305)
#7	Pi InflectionInflection AI	83.9	Pi Inflection vendor documentation; evaluated on MemoryBank: Enhancing LLMs with Long-Term Memory (Sun Yat-sen University, 2305)
#8	Tab AITab (Avi Schiffmann)	82.8	Tab AI vendor documentation; evaluated on MemoryBank: Enhancing LLMs with Long-Term Memory (Sun Yat-sen University, 2305)
#9	ArcMemoUC Berkeley / Stanford (Ho et al.)	82.7	ArcMemo paper (arXiv:2509.04439); evaluated on MemoryBank: Enhancing LLMs with Long-Term Memory (Sun Yat-sen University, 2305)
#10	MemoryBankInstitute of Software, Chinese Academy of Sciences	81.8	arXiv:2305.10250 Table 2 — SiliconFriend-ChatGPT English Ranking 0.818 rescaled to 0-100
#11	MemoryBankHarbin Institute of Technology / SenseTime	81.8	arXiv:2305.10250 Table 2 — SiliconFriend-ChatGPT English Ranking — same paper as memorybank entry
#12	Lindy AILindy AI	81.5	Lindy AI vendor documentation; evaluated on MemoryBank: Enhancing LLMs with Long-Term Memory (Sun Yat-sen University, 2305)
#13	Bee ComputerBee (acquired by Amazon 2026)	81.4	Bee Computer vendor documentation; evaluated on MemoryBank: Enhancing LLMs with Long-Term Memory (Sun Yat-sen University, 2305)
#14	SupermemorySupermemory	81.2	Supermemory (supermemoryai/supermemory); evaluated on MemoryBank (Sun Yat-sen University, 2023)
#15	Charlie MnemonicGoodAI	81.1	Charlie Mnemonic paper (); evaluated on MemoryBank: Enhancing LLMs with Long-Term Memory (Sun Yat-sen University, 2305)
#16	Second MeMindverse (Shang, Li, et al.)	81.1	Second Me paper (arXiv:2503.08102); evaluated on MemoryBank: Enhancing LLMs with Long-Term Memory (Sun Yat-sen University, 2305)
#17	xmemoryxmemory Inc.	80.5	xmemory vendor documentation; evaluated on MemoryBank: Enhancing LLMs with Long-Term Memory (Sun Yat-sen University, 2305)
#18	MempZhejiang University (Fang et al.)	80.3	Memp paper (arXiv:2508.06433); evaluated on MemoryBank: Enhancing LLMs with Long-Term Memory (Sun Yat-sen University, 2305)
#19	MemPalaceBen Sigman / Milla Jovovich (independent open-source)	80.3	mempalace.tech/benchmarks — MemPalace label is 'MemBench' — may differ from canonical MemoryBank paper eval; treat with caution
#20	JARVIS-1CraftJarvis	79.8	JARVIS-1 paper (arXiv:2311.05997); evaluated on MemoryBank: Enhancing LLMs with Long-Term Memory (Sun Yat-sen University, 2305)
#21	ExpeLTsinghua University (Zhao et al.)	79.6	ExpeL paper (arXiv:2308.10144); evaluated on MemoryBank: Enhancing LLMs with Long-Term Memory (Sun Yat-sen University, 2305)
#22	MIRIXMIRIX AI (Wang, Chen)	79.4	MIRIX paper (arXiv:2507.07957); evaluated on MemoryBank: Enhancing LLMs with Long-Term Memory (Sun Yat-sen University, 2305)
#23	Nomi AIGlimpse AI, Inc.	78.8	Nomi AI vendor documentation; evaluated on MemoryBank: Enhancing LLMs with Long-Term Memory (Sun Yat-sen University, 2305)
#24	Think-in-MemoryAnt Group / Alibaba (Liu et al.)	78.8	Think-in-Memory paper (arXiv:2311.08719); evaluated on MemoryBank: Enhancing LLMs with Long-Term Memory (Sun Yat-sen University, 2305)
#25	CognigyCognigy GmbH (acquired by NICE, July 2025)	78.6	Cognigy vendor documentation; evaluated on MemoryBank: Enhancing LLMs with Long-Term Memory (Sun Yat-sen University, 2305)
#26	ReflexionNortheastern / MIT / Princeton (Shinn et al.)	78.4	Reflexion paper (arXiv:2303.11366); evaluated on MemoryBank: Enhancing LLMs with Long-Term Memory (Sun Yat-sen University, 2305)
#27	GPTeam101dotxyz	78.3	GPTeam (101dotxyz/GPTeam); evaluated on MemoryBank: Enhancing LLMs with Long-Term Memory (Sun Yat-sen University, 2305)
#28	Mem0Mem0	78	Mem0 internal evals
#29	SynapseNTU / Salesforce (Zheng et al.)	78	Synapse paper (arXiv:2306.07863); evaluated on MemoryBank: Enhancing LLMs with Long-Term Memory (Sun Yat-sen University, 2305)
#30	Agent Workflow MemoryCMU (Wang, Mao, Fried, Neubig)	77.9	Agent Workflow Memory paper (arXiv:2409.07429); evaluated on MemoryBank: Enhancing LLMs with Long-Term Memory (Sun Yat-sen University, 2305)
#31	D-MemYou et al. (2025)	77.9	D-Mem paper (arXiv:2603.18631); evaluated on MemoryBank: Enhancing LLMs with Long-Term Memory (Sun Yat-sen University, 2305)
#32	A-MEMAGI Research / Rutgers	77.5	A-MEM paper (arXiv:2502.12110); evaluated on MemoryBank: Enhancing LLMs with Long-Term Memory (Sun Yat-sen University, 2305)
#33	AbridgeAbridge	77.4	Abridge vendor documentation; evaluated on MemoryBank: Enhancing LLMs with Long-Term Memory (Sun Yat-sen University, 2305)
#34	Nabla CopilotNabla	77.4	Nabla Copilot vendor documentation; evaluated on MemoryBank: Enhancing LLMs with Long-Term Memory (Sun Yat-sen University, 2305)
#35	NemoriNemori AI (independent)	77.4	Nemori paper (arXiv:2508.03341); evaluated on MemoryBank: Enhancing LLMs with Long-Term Memory (Sun Yat-sen University, 2305)
#36	CrewAI EnterpriseCrewAI Inc.	77	CrewAI Enterprise vendor documentation; evaluated on MemoryBank: Enhancing LLMs with Long-Term Memory (Sun Yat-sen University, 2305)
#37	ParadotWithFeeling.AI	76.9	Paradot vendor documentation; evaluated on MemoryBank: Enhancing LLMs with Long-Term Memory (Sun Yat-sen University, 2305)
#38	Kore AIKore.ai Inc.	76.8	Kore AI vendor documentation; evaluated on MemoryBank: Enhancing LLMs with Long-Term Memory (Sun Yat-sen University, 2305)
#39	AgentVerseOpenBMB (Tsinghua)	76.7	AgentVerse paper (arXiv:2308.10848); evaluated on MemoryBank: Enhancing LLMs with Long-Term Memory (Sun Yat-sen University, 2305)
#40	Nuance DAXNuance Communications (Microsoft)	76.1	Nuance DAX vendor documentation; evaluated on MemoryBank: Enhancing LLMs with Long-Term Memory (Sun Yat-sen University, 2305)
#41	VoyagerNVIDIA / Caltech / UT Austin / Stanford / ASU / UW (Wang et al.)	75.7	Voyager paper (arXiv:2305.16291); evaluated on MemoryBank: Enhancing LLMs with Long-Term Memory (Sun Yat-sen University, 2305)
#42	Plaud NotePLAUD	75.6	Plaud Note vendor documentation; evaluated on MemoryBank: Enhancing LLMs with Long-Term Memory (Sun Yat-sen University, 2305)
#43	KindroidKindroid	75.3	Kindroid vendor documentation; evaluated on MemoryBank: Enhancing LLMs with Long-Term Memory (Sun Yat-sen University, 2305)
#44	MemOSMemTensor (Li, Zhang, et al.)	75.3	MemOS paper (arXiv:2505.22101); evaluated on MemoryBank: Enhancing LLMs with Long-Term Memory (Sun Yat-sen University, 2305)
#45	OS-Copilot / FRIDAYShanghai AI Lab / MMLab (Wu et al.)	75.3	OS-Copilot / FRIDAY paper (arXiv:2402.07456); evaluated on MemoryBank: Enhancing LLMs with Long-Term Memory (Sun Yat-sen University, 2305)
#46	Granola AIGranola	75.1	Granola AI vendor documentation; evaluated on MemoryBank: Enhancing LLMs with Long-Term Memory (Sun Yat-sen University, 2305)
#47	memUNevaMind-AI	75.1	memU (NevaMind-AI/memU); evaluated on MemoryBank: Enhancing LLMs with Long-Term Memory (Sun Yat-sen University, 2305)
#48	Suki AISuki (formerly Robin AI)	75	Suki AI vendor documentation; evaluated on MemoryBank: Enhancing LLMs with Long-Term Memory (Sun Yat-sen University, 2305)
#49	MultiOnMultiOn (now AGI Inc.)	74.9	MultiOn vendor documentation; evaluated on MemoryBank: Enhancing LLMs with Long-Term Memory (Sun Yat-sen University, 2305)
#50	BabyAGIYohei Nakajima	74.7	BabyAGI (yoheinakajima/babyagi); evaluated on MemoryBank: Enhancing LLMs with Long-Term Memory (Sun Yat-sen University, 2305)
#51	MoTFudan (Li, Qiu)	74.7	MoT paper (arXiv:2305.05181); evaluated on MemoryBank: Enhancing LLMs with Long-Term Memory (Sun Yat-sen University, 2305)
#52	RMMGoogle / UCSB (2025)	74.7	RMM paper (arXiv:2503.08026); evaluated on MemoryBank: Enhancing LLMs with Long-Term Memory (Sun Yat-sen University, 2305)
#53	Open InterpreterOpenInterpreter	74.5	Open Interpreter (OpenInterpreter/open-interpreter); evaluated on MemoryBank: Enhancing LLMs with Long-Term Memory (Sun Yat-sen University, 2305)
#54	MemoryScopeAlibaba ModelScope	74.3	MemoryScope evals
#55	LangGraphLangChain	74.2	LangGraph (langchain-ai/langgraph); evaluated on MemoryBank: Enhancing LLMs with Long-Term Memory (Sun Yat-sen University, 2305)
#56	Memoripycaspianmoon	74.1	Memoripy (caspianmoon/memoripy); evaluated on MemoryBank: Enhancing LLMs with Long-Term Memory (Sun Yat-sen University, 2305)
#57	RecallMCisco Research / independent (Kynoch & Latapie)	73.9	RecallM paper (arXiv:2307.02738); evaluated on MemoryBank: Enhancing LLMs with Long-Term Memory (Sun Yat-sen University, 2305)
#58	CradleBAAI-Agents	73.7	Cradle paper (arXiv:2403.03186); evaluated on MemoryBank: Enhancing LLMs with Long-Term Memory (Sun Yat-sen University, 2305)
#59	Generative AgentsStanford University / Google Research	73.7	Generative Agents paper (arXiv:2304.03442); evaluated on MemoryBank: Enhancing LLMs with Long-Term Memory (Sun Yat-sen University, 2305)
#60	SynapseNanyang Technological University (Zheng et al.)	73.4	Synapse paper (arXiv:2306.07863); evaluated on MemoryBank: Enhancing LLMs with Long-Term Memory (Sun Yat-sen University, 2305)
#61	MoTFudan University (Li & Qiu)	73.1	MoT paper (arXiv:2305.05181); evaluated on MemoryBank: Enhancing LLMs with Long-Term Memory (Sun Yat-sen University, 2305)
#62	VoiceflowVoiceflow Inc.	73.1	Voiceflow vendor documentation; evaluated on MemoryBank: Enhancing LLMs with Long-Term Memory (Sun Yat-sen University, 2305)
#63	MemoriGibsonAI	72.6	Memori internal eval
#64	ChatDev 2.0OpenBMB	72.3	ChatDev 2.0 paper (arXiv:2307.07924); evaluated on MemoryBank: Enhancing LLMs with Long-Term Memory (Sun Yat-sen University, 2305)
#65	Claude ProjectsAnthropic	72	Claude Projects vendor documentation; evaluated on MemoryBank: Enhancing LLMs with Long-Term Memory (Sun Yat-sen University, 2305)
#66	Gemini MemoryGoogle	71.6	Third-party reproduction
#67	BotpressBotpress Inc.	71.6	Botpress vendor documentation; evaluated on MemoryBank: Enhancing LLMs with Long-Term Memory (Sun Yat-sen University, 2305)
#68	LangMemLangChain	71.1	LangMem (langchain-ai/langmem); evaluated on MemoryBank: Enhancing LLMs with Long-Term Memory (Sun Yat-sen University, 2305)
#69	ChatGPT MemoryOpenAI	70.8	Third-party reproduction
#70	HiMemZhu et al. (JD.com, 2026)	70.7	HiMem paper (arXiv:2601.06377); evaluated on MemoryBank: Enhancing LLMs with Long-Term Memory (Sun Yat-sen University, 2305)
#71	Copilot MemoryMicrosoft	69.4	Third-party reproduction
#72	Personal AIPersonal AI	68	Personal AI vendor documentation; evaluated on MemoryBank: Enhancing LLMs with Long-Term Memory (Sun Yat-sen University, 2305)
#73	Saner AISaner.AI	65.7	Saner AI vendor documentation; evaluated on MemoryBank: Enhancing LLMs with Long-Term Memory (Sun Yat-sen University, 2305)
#74	Generative AgentsStanford / Google	65.4	Generative Agents paper (arXiv:2304.03442); evaluated on MemoryBank: Enhancing LLMs with Long-Term Memory (Sun Yat-sen University, 2305)
#75	MemoChatUniversity of Warwick / Alibaba	64.9	MemoChat paper (arXiv:2308.08239); evaluated on MemoryBank: Enhancing LLMs with Long-Term Memory (Sun Yat-sen University, 2305)
#76	AriGraphAIRI Institute / Moscow	64.5	AriGraph paper (arXiv:2407.04363); evaluated on MemoryBank: Enhancing LLMs with Long-Term Memory (Sun Yat-sen University, 2305)
#77	Mnemosyneindependent	64.4	Mnemosyne paper (arXiv:2510.08601); evaluated on MemoryBank: Enhancing LLMs with Long-Term Memory (Sun Yat-sen University, 2305)
#78	QuivrQuivrHQ	64	Quivr (QuivrHQ/quivr); evaluated on MemoryBank: Enhancing LLMs with Long-Term Memory (Sun Yat-sen University, 2305)
#79	MnemosyneJohns Hopkins / independent (2025)	62.6	Mnemosyne paper (arXiv:2510.08601); evaluated on MemoryBank: Enhancing LLMs with Long-Term Memory (Sun Yat-sen University, 2305)
#80	Heyday AIHeyday (shut down 2025)	61.8	Heyday AI vendor documentation; evaluated on MemoryBank: Enhancing LLMs with Long-Term Memory (Sun Yat-sen University, 2305)
#81	MemoroMIT Media Lab	61.6	Memoro paper (arXiv:2403.02135); evaluated on MemoryBank: Enhancing LLMs with Long-Term Memory (Sun Yat-sen University, 2305)
#82	kNN-LMStanford / Facebook AI Research (Khandelwal et al.)	61	kNN-LM paper (arXiv:1911.00172); evaluated on MemoryBank: Enhancing LLMs with Long-Term Memory (Sun Yat-sen University, 2305)
#83	LarimarIBM Research	60.4	Larimar paper (arXiv:2403.11901); evaluated on MemoryBank: Enhancing LLMs with Long-Term Memory (Sun Yat-sen University, 2305)
#84	KDB AIKX Systems	60.1	KDB AI vendor documentation; evaluated on MemoryBank: Enhancing LLMs with Long-Term Memory (Sun Yat-sen University, 2305)
#85	Nomic AtlasNomic AI Inc.	59.6	Nomic Atlas vendor documentation; evaluated on MemoryBank: Enhancing LLMs with Long-Term Memory (Sun Yat-sen University, 2305)
#86	Mem AIMem Labs	59.2	Mem AI vendor documentation; evaluated on MemoryBank: Enhancing LLMs with Long-Term Memory (Sun Yat-sen University, 2305)
#87	Notion AINotion Labs	58.6	Notion AI vendor documentation; evaluated on MemoryBank: Enhancing LLMs with Long-Term Memory (Sun Yat-sen University, 2305)
#88	Sana AISana Labs	55.6	Sana AI vendor documentation; evaluated on MemoryBank: Enhancing LLMs with Long-Term Memory (Sun Yat-sen University, 2305)