Evidence record 12966 · automatically gathered

PRO-LONG: Programmatic Memory Enables Long-Horizon Reasoning

Long-horizon tasks require sustained perception, reasoning, and exploration, and are a persistent challenge for large language model (LLM) agents. This gap is reflected in their limited performance on continual learning benchmarks such as ARC-AGI-3, especially when models are evaluated out of the box. Various agent harnesses have been proposed to close this gap, and each commits to a strategy for handling long sequences of observations, i.e., what information to save from the environment and how

Record details

Published: 22 July 2026
Source: arXiv cs.AI
Category: Research
Topics: Agents & autonomy · Environment
Retrieved: 23 July 2026

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ethics.ai (22 July 2026), “PRO-LONG: Programmatic Memory Enables Long-Horizon Reasoning,” evidence record 12966, https://ethics.ai/record/12966 (originally published by arXiv cs.AI).

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