Persistent Memory for Language Models

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35 papers in the last four weeks, up 400% on the four weeks before. 0.3% of all new papers.

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DolphinBench: Mapping the Pareto Frontier of Agent Memory
Sep 21, 2026Soumil Rathi, Deshraj Yadav, Taranjeet SinghAgent Memory Persistent Memory for Language Models
Mem0
RPMem: Learning Long-Term Recurrent Parametric Memory Across Sessions for LLM Agents
Sep 20, 2026Fanyu Zhao, Ruike Cao, Liang Dong +6Continual Learning for LLM Agents LLM Agent Memory
Fudan University · Qwen Business Unit of Alibaba
Propose, Verify, Commit: Evidence-Grounded Memory for Long-Horizon Multi-Actor Conversations
Sep 20, 2026Zihao Lu, Zhihang Yuan, Lei ShiConversational Memory Persistent Memory for Language Models
Alibaba Cloud Computing, Hangzhou, China
PSD: Pseudo Self-Distillation of Memory Representation Capabilities for LLM Agents
Sep 20, 2026Pirzada Suhail, Menglin Xia, Xuchao Zhang +3LLM Agent Memory Persistent Memory for Language Models
Microsoft Research
JustMem: Just-Enough Memory Access for Long-Term Conversations
Sep 17, 2026Guanhua Chen, Yanting Wang, Wenjing Zhi +1Conversational Memory Persistent Memory for Language Models
Beihang University
Long-Lived Characters, Local Inference: Incremental Memory Maintenance for Game NPCs
Sep 16, 2026Zimu XuLong-Context Language Model Inference Persistent Memory for Language Models
University of Bern
Persistent Recurrent Memory Between Transformer Layers - Improves Language Model Generalization
Sep 15, 2026Eduardo Novaes HeringMemory-Augmented Language Models Decoder-Only Language Models
FITec Labs / Ericsson São Paulo
MoME: Mixture-of-Memory Embeddings for Context-Aware Sparse Lookup
Sep 14, 2026Muchen Li, Leonid Sigal, Renjie LiaoMemory-Augmented Language Models Persistent Memory for Language Models
University of British Columbia · 2Vector Institute for AI · 3Canada CIFAR AI Chair +1
LifeFuse-Mem: Lifecycle-Aware State Fusion Against Temporary Overwriting for Long-Term Memory
Sep 14, 2026Hanyu Zhao, Yuqian Feng, Zhenyu Song +4LLM Agent Memory Persistent Memory for Language Models
Beijing Academy of Artificial Intelligence · University of Chinese Academy of Sciences · Institute of Software, Chinese Academy of Sciences +1
PRAGMA: Evaluating Personalized Guidance with Memory Alignment in Lifelong Conversations
Sep 10, 2026Hyojeong Yu, Hyukhun Koh, Minsung Kim +2Conversational Memory Persistent Memory for Language Models
Dept. of ECE, Seoul National University · IPAI, Seoul National University
Fortunate Recall: Ontology-Driven Memory Lifecycle Management for Persistent Coherence in LLMs
Sep 9, 2026Ansuman Mullick, Eray TüzünConversational Memory Temporal Reasoning in Language Models
Bilkent University
What Should an Agent Forget? Separating What Is Stored from What Is Used
Sep 9, 2026Yuhang Li, Yuchen LiPersistent Memory for Language Models Temporal IR
East China Normal University Shanghai, China
ROAM: Robust Organization of Atomic Memories for Agents through Semantic Relations
Sep 9, 2026Jianjie Zheng, Peng Lai, Sijie Cheng +3LLM Agent Memory Persistent Memory for Language Models
Southern University of Science and Technology · Tsinghua University · Deepexi Technology Co. Ltd.
Where to Look and What to Use: Retrieve-Localize-Generate for Long-Term Conversational Memory Question Answering
Sep 7, 2026Yifan Wang, Xinkui Lin, Yongxiu Xu +9Graph Retrieval-Augmented Generation Persistent Memory for Language Models
University of Electronic Science and Technology of China, Chengdu, China 4State Key Laboratory of Internet Architecture, Tsinghua University, Beijing, China · Institute of Information Engineering, Chinese Academy of Sciences, Beijing, China 3School of Cyber Security, University of Chinese Academy of Sciences, Beijing, China · 5Independent Researcher
MemoryLACE: Memory Lifecycle-Aware Consolidation and Evidence Retrieval
Sep 2, 2026Meriem Yacoubi, Pia Schmidt, Nenad Petrovic +3Persistent Memory for Language Models Long-Term Conversational Memory
Chair of Robotics, Artificial Intelligence and Real-Time Systems, Technical University of Munich · inovex GmbH · Cerebras Systems Inc.
Kathleen Remembers: Length-Invariant One-Shot Recall Without Attention
Aug 31, 2026George FountzoulasMemory-Augmented Neural Networks Persistent Memory for Language Models
Department of Computer Engineering & Informatics Frederick University, Nicosia, Cyprus
RippleMem: From Isolated Retrieval to Associative Recollection for Long-Term Agent Memory
Aug 13, 2026Jingbo Ji, Lingyi Li, Xilong Cheng +4Agent Memory Persistent Memory for Language Models
Communication University of China, Beijing, China. · Zhilian Yinghe Technology Co., Ltd., Beijing, China · State Key Laboratory of Media Convergence and Communication, Beijing, China
LycheeMemory V2: Efficient Long-Term Memory for LLM Agents via Semantic Segment-Level Consolidation
Aug 13, 2026Dongfang Li, Zixuan Liu, Junmai Wang +5LLM Agent Memory Persistent Memory for Language Models
Harbin Institute of Technology, Shenzhen
MARCH: Scaling Recurrent Memory with Content-Routed State Anchors
Aug 12, 2026Ming Zhang, Kaisen Yang, Shu Yu +6Long-Context Retrieval In-Context Retrieval
Shanghai AI Laboratory · Tsinghua University · Fudan University
Total Recall at What Cost? Benchmarking the Serving Cost of Agentic Memory Systems
Aug 12, 2026Natchanon Pollertlam, Witchayut KornsuwannawitLLM Serving LLM Agent Memory
Bricks Technology · Thailand
Consolidator: Learning Persistent Routed Memory Across Context Boundaries
Aug 12, 2026Sungwoo Goo, Hwi-yeol Yun, Sangkeun JungMemory-Augmented Neural Networks Persistent Memory for Language Models
College of Pharmacy, Chungnam National University · Department of Computer Science & Engineering, Chungnam National University
Mitigating Over-Personalization in LLMs via Structured Memory
Aug 8, 2026Hakeem Hannoon, Andrew Zhao, Mihir Narayan +2LLM Sycophancy Persistent Memory for Language Models
University of Saskatchewan · University of California–Irvine · University of Wisconsin–Madison +2
TEPA: Revoking Stale Memories for Conflict-Robust Language Agents
Aug 7, 2026Yan Zhou, Yue Ouyang, Kaiyang Zheng +1LLM Agent Memory Persistent Memory for Language Models
School of Mathematics and Statistics, Changsha University of Science and Technology, Changsha, China · School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, China.
LeanMem: Simple and Efficient Long-Term Memory for LLM Agents
Aug 4, 2026Yuxin Liao, Le Wu, Min Hou +3LLM Agent Memory Persistent Memory for Language Models
Hefei University of Technology
Verifiable Memory: Learning Unified Memory Management with Local and Global Verifiers for Large Language Model Agents
Aug 4, 2026Xiaolong Sun, Qichao Wang, Hangyu Li +1LLM Agent Memory Persistent Memory for Language Models
Sun Yat-Sen University, Guangzhou, China · Nanyang Technological University, Singapore · Tencent, Shenzhen, China
Structured Memory for Edge Language Models: Persistent Context and Corpus Retrieval via O(1) SSM State Injection
Aug 3, 2026Anusha Madan Gopal, Aras Pirbadian, Kristofor D. Carlson +2Retrieval-Augmented Generation On-Device Language Model Inference
BrainChip Inc. 23041 Avenida de la Carlota, Laguna Hills, CA
LiveMem: Maintaining Memory State Continuity in Long-Running LLM Inference
Aug 3, 2026Zhichen Liu, Ruihan Sun, Hengjie Yang +4Memory-Augmented Language Models LLM Inference
Southern University of Science and Technology · Xidian University
Mamba with Hierarchical Memory: Solving Representation Bottleneck in Long Sequence Modeling
Aug 3, 2026Qinwen Wang, Jieping Luo, Aoxiang Qin +5Long-Context Retrieval Memory-Augmented Neural Networks
The Chinese University of Hong Kong, Shenzhen · Hainan Bielefeld University of Applied Sciences · BrainGalaxy
PGMem: Tightly Coupled Persona-Memory Graph for Lifelong Personalized Agents
Aug 3, 2026Wonjun Choi, Yerim Kim, Yukyung Lee +1Agent Memory LLM Personalization
Korea University, Seoul, Korea · Boston University, Boston, USA
TrajWiki: Source-Grounded Memory Trajectories for Long-Horizon Dialogue Agents
Aug 2, 2026Jingyu Sun, Yuyang Xue, Mingyang Li +9Agent Memory LLM Agent Memory
1The University of Manchester · 2The University of Melbourne · 3The University of Edinburgh +2

Sep 21, 2026, cs.CLJ/K move · Enter open · S save

DolphinBench: Mapping the Pareto Frontier of Agent Memory

Soumil Rathi, Deshraj Yadav, Taranjeet Singh

Mem0

Agent Memory Persistent Memory for Language Models Long-Horizon Agent Evaluation Memory Agent Benchmarks

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Agents today often take real-world actions that depend on long-term memory and context recall over time. However, most current memory benchmarks are built for a conversational question-answer format, where the question itself signals that some fact must be retrieved, and often which one. Moreover, benchmarks rarely require anything beyond accuracy from submissions, allowing memory systems to make unreasonable cost/time tradeoffs to achieve higher scores. We present DolphinBench, a benchmark that evaluates memory directly through an agent's task completion. DolphinBench includes three knowledge-work personas with roughly 500k tokens of user messages per persona and evaluates agents on tasks that depend on information from that history. We verify all 200 tasks per persona by running an agent with and without the relevant history, requiring success with it and failure without it. Finally, we require all evaluations to report total cost and latency alongside accuracy, which enables us to evaluate agent memory systems holistically. No existing memory benchmark combines all three. The dataset and evaluation code are available at https://dolphinbench.ai.

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