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arXiv · 2502.20175

An Extensive Evaluation of PDDL Capabilities in off-the-shelf LLMs

Kaustubh Vyas·Damien Graux·Sébastien Montella·Pavlos Vougiouklis·Ruofei Lai·Keshuang Li·Yang Ren·Jeff Z. Pan
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Abstract

In recent advancements, large language models (LLMs) have exhibited proficiency in code generation and chain-of-thought reasoning, laying the groundwork for tackling automatic formal planning tasks. This study evaluates the potential of LLMs to understand and generate Planning Domain Definition Language (PDDL), an essential representation in artificial intelligence planning. We conduct an extensive analysis across 20 distinct models spanning 7 major LLM families, both commercial and open-source. Our comprehensive evaluation sheds light on the zero-shot LLM capabilities of parsing, generating, and reasoning with PDDL. Our findings indicate that while some models demonstrate notable effectiveness in handling PDDL, others pose limitations in more complex scenarios requiring nuanced planning knowledge. These results highlight the promise and current limitations of LLMs in formal planning tasks, offering insights into their application and guiding future efforts in AI-driven planning paradigms.

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Kaustubh Vyas, Damien Graux, Sébastien Montella, Pavlos Vougiouklis, Ruofei Lai, Keshuang Li, Yang Ren, Jeff Z. Pan. 2025-02-27. An Extensive Evaluation of PDDL Capabilities in off-the-shelf LLMs. https://arxiv.org/abs/2502.20175

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