CoMem: Context Management with A Decoupled Long-Context Model

• URL: http://arxiv.org/abs/2605.30842v1
• Date: Fri, 29 May 2026 04:59:32 GMT
• Title: CoMem: Context Management with A Decoupled Long-Context Model
• Abstract summary: CoMem is a framework that decouples memory management from the primary agent workflow.<n>We show that CoMem provides 1.4x latency improvements upon vanilla long-context solutions.
• Score: 68.6597154502361
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Context management enables agentic models to solve long-horizon tasks through iterative summarization of previous interaction histories. However, this process typically incurs substantial decoding overhead for the extra summarization tokens, which significantly affect the end-to-end response latency at deployment. In this paper, we introduce CoMem, a novel framework that decouples memory management from the primary agent workflow, enabling these processes to execute in parallel. We propose a $k$-step-off asynchronous pipeline that overlaps the memory model's summarization with the agent's inference, effectively masking the latency of context processing. To ensure robustness under this asynchronous setting, we introduce a reward-driven training strategy that aligns the memory model to capture sufficient statistics for the agent's decision-making. Theoretical analysis confirms that CoMem offers a superior efficiency-effectiveness trade-off compared to coupled architectures. Our extensive experimental results on SWE-Bench-Verified show that CoMem provides 1.4x latency improvements upon vanilla long-context solutions while preserving most of the performance. Furthermore, we demonstrate that these latency gains scale favorably with increased system throughput, offering a modular path forward for the independent optimization of agent reasoning and memory compression.

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