When Does Memory Help? A Cost-Aware Evaluation of Long-Term Memory in Tool-Using LLM Agents

arXiv:2609.05441 · cs.AI · Submitted 2026-07-26 · Read on arXiv

cs.AI

Submitted: 2026-07-26

Updated: 2026-07-26

License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/

Terminology

• Benchmark — 3× in this paper · explained in 2 episodes
• Memory Evaluation for Realistic Instrumented Tasks — 1× in this paper
• Trace — 1× in this paper · explained in 2 episodes

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