D-MEM (Agent / long-term memory): current frontier — recent, not yet superseded in the knowledge base. 0 paper(s) critique it, 0 beat it on benchmarks — not ranked as a superseded baseline. Sub-problem: cluster led by Mem0. Newer alternatives in the same sub-problem include REAL, MemPro, MemGuard, DeferMem, Memory-R2.

Agent / long-term memory

D-MEM

D-MEM: Dopamine-Gated Agentic Memory via Reward Prediction Error Routing

On the frontierfirst seen Mar 15, 2026

Current frontier — recent, not yet superseded in the knowledge base

0 papers critique it · 0 beat it on benchmarks

What to use instead

Recent methods in the same sub-problem, not yet superseded in the knowledge base — arXiv benchmark leaders, not vetted production recommendations.

REALREAL: A Reasoning-Enhanced Graph Framework for Long-Term Memory Management of LLMs
Jun 9, 2026
MemProMemPro: Agentic Memory Systems as Evolvable Programs
May 30, 2026
MemGuardMemGuard: Preventing Memory Contamination in Long-Term Memory-Augmented Large Language Models
May 27, 2026
DeferMemDeferMem: Query-Time Evidence Distillation via Reinforcement Learning for Long-Term Memory QA
May 21, 2026
Memory-R2Memory-R2: Fair Credit Assignment for Long-Horizon Memory-Augmented LLM Agents
May 20, 2026
GRAVITYGRAVITY: Architecture-Agnostic Structured Anchoring for Long-Horizon Conversational Memory
May 3, 2026
EngramaEngramaBench: Evaluating Long-Term Conversational Memory with Structured Graph Retrieval
Apr 23, 2026
DeltaMemDeltaMem: Towards Agentic Memory Management via Reinforcement Learning
Apr 2, 2026
ChronosChronos: Temporal-Aware Conversational Agents with Structured Event Retrieval for Long-Term Memory
Mar 17, 2026
D-MEMD-MEM: Dopamine-Gated Agentic Memory via Reward Prediction Error Routing
Mar 15, 2026
SwiftMemSwiftMem: Fast Agentic Memory via Query-aware Indexing
Jan 13, 2026
Agentic Memory (AgeMem)Agentic Memory: Learning Unified Long-Term and Short-Term Memory Management for Large Language Model Agents
Jan 5, 2026