AMA: Adaptive Memory via Multi-Agent Collaboration
The rapid evolution of Large Language Model (LLM) agents has necessitated robust memory systems to support cohesive long-term interaction and complex reasoning. Benefiting from the strong capabilities of LLMs, recent research focus has shifted from simple context extension to the development of dedicated agentic memory systems. However, existing approaches typically rely on rigid retrieval granularity, accumulation-heavy maintenance strategies, and coarse-grained update mechanisms. These design choices create a persistent mismatch between stored information and task-specific reasoning demands, while leading to the unchecked accumulation of logical inconsistencies over time.
To address these challenges, we propose Adaptive Memory via Multi-Agent Collaboration (AMA), a novel framework that leverages coordinated agents to manage memory across multiple granularities. AMA employs a hierarchical memory design that dynamically aligns retrieval granularity with task complexity. Specifically, the Constructor and Retriever jointly enable multi-granularity memory construction and adaptive query routing. The Judge verifies the relevance and consistency of retrieved content, triggering iterative retrieval when evidence is insufficient or invoking the Refresher upon detecting logical conflicts. The Refresher then enforces memory consistency by performing targeted updates or removing outdated entries.
Extensive experiments on challenging long-context benchmarks show that AMA significantly outperforms state-of-the-art baselines while reducing token consumption by approximately 80% compared to full-context methods, demonstrating its effectiveness in maintaining retrieval precision and long-term memory consistency. The proposed framework is described in a paper with 8 pages, categorized under Artificial Intelligence (cs.AI), and can be cited as arXiv:2601.20352 [cs.AI] or arXiv:2601.20352v3 [cs.AI] for this version, with the DOI https://doi.org/10.48550/arXiv.2601.20352, which is an arXiv-issued DOI via DataCite. The paper has a submission history, with versions v1, v2, and v3, submitted on Wed, 28 Jan 2026 08:09:49 UTC, Mon, 2 Feb 2026 07:41:51 UTC, and Wed, 15 Apr 2026 14:20:46 UTC, respectively, with the author Weiquan Huang.
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