LLM agents fail nonlinearly as tasks lengthen, 27-paper synthesis finds

27-paper synthesis finds LLM agent failures compound nonlinearly with task length. Six failure clusters identified across 19 benchmarks. A synthesis of 27 papers (2023-2026) across 19 benchmarks finds LLM agent failures compound nonlinearly with task length. The study, led by Wael Albayaydh, Rui Zhao, and Ivan Flechais, identifies six failure clusters in tool use, planning, and coordination. Key facts 27 papers synthesized across 19 benchmarks Six failure clusters identified in LLM agents…