Programming over Thinking: Efficient and Robust Multi-Constraint Planning

Fuente: arXiv
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Main Authors: Deik, Derrick Goh Xin, Long, Quanyu, Liu, Zhengyuan, Chen, Nancy F., Wang, Wenya
Format: Preprint
Published: 2026
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author Deik, Derrick Goh Xin
Long, Quanyu
Liu, Zhengyuan
Chen, Nancy F.
Wang, Wenya
author_facet Deik, Derrick Goh Xin
Long, Quanyu
Liu, Zhengyuan
Chen, Nancy F.
Wang, Wenya
contents Multi-constraint planning involves identifying, evaluating, and refining candidate plans while satisfying multiple, potentially conflicting constraints. Existing large language model (LLM) approaches face fundamental limitations in this domain. Pure reasoning paradigms, which rely on long natural language chains, are prone to inconsistency, error accumulation, and prohibitive cost as constraints compound. Conversely, LLMs combined with coding- or solver-based strategies lack flexibility: they often generate problem-specific code from scratch or depend on fixed solvers, failing to capture generalizable logic across diverse problems. To address these challenges, we introduce the Scalable COde Planning Engine (SCOPE), a framework that disentangles query-specific reasoning from generic code execution. By separating reasoning from execution, SCOPE produces solver functions that are consistent, deterministic, and reusable across queries while requiring only minimal changes to input parameters. SCOPE achieves state-of-the-art performance while lowering cost and latency. For example, with GPT-4o, it reaches 93.1% success on TravelPlanner, a 61.6% gain over the best baseline (CoT) while cutting inference cost by 1.4x and time by ~4.67x. Code is available at https://github.com/DerrickGXD/SCOPE.
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id arxiv_https___arxiv_org_abs_2601_09097
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Programming over Thinking: Efficient and Robust Multi-Constraint Planning
Deik, Derrick Goh Xin
Long, Quanyu
Liu, Zhengyuan
Chen, Nancy F.
Wang, Wenya
Artificial Intelligence
Multi-constraint planning involves identifying, evaluating, and refining candidate plans while satisfying multiple, potentially conflicting constraints. Existing large language model (LLM) approaches face fundamental limitations in this domain. Pure reasoning paradigms, which rely on long natural language chains, are prone to inconsistency, error accumulation, and prohibitive cost as constraints compound. Conversely, LLMs combined with coding- or solver-based strategies lack flexibility: they often generate problem-specific code from scratch or depend on fixed solvers, failing to capture generalizable logic across diverse problems. To address these challenges, we introduce the Scalable COde Planning Engine (SCOPE), a framework that disentangles query-specific reasoning from generic code execution. By separating reasoning from execution, SCOPE produces solver functions that are consistent, deterministic, and reusable across queries while requiring only minimal changes to input parameters. SCOPE achieves state-of-the-art performance while lowering cost and latency. For example, with GPT-4o, it reaches 93.1% success on TravelPlanner, a 61.6% gain over the best baseline (CoT) while cutting inference cost by 1.4x and time by ~4.67x. Code is available at https://github.com/DerrickGXD/SCOPE.
title Programming over Thinking: Efficient and Robust Multi-Constraint Planning
topic Artificial Intelligence
url https://arxiv.org/abs/2601.09097