ALARB: An Arabic Legal Argument Reasoning Benchmark

Fuente: arXiv
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Main Authors: Shairah, Harethah Abu, AlHarbi, Somayah, AlHussein, Abdulaziz, Alsabea, Sameer, Shaqaqi, Omar, AlShamlan, Hebah, Knio, Omar, Turkiyyah, George
Format: Preprint
Published: 2025
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author Shairah, Harethah Abu
AlHarbi, Somayah
AlHussein, Abdulaziz
Alsabea, Sameer
Shaqaqi, Omar
AlShamlan, Hebah
Knio, Omar
Turkiyyah, George
author_facet Shairah, Harethah Abu
AlHarbi, Somayah
AlHussein, Abdulaziz
Alsabea, Sameer
Shaqaqi, Omar
AlShamlan, Hebah
Knio, Omar
Turkiyyah, George
contents We introduce ALARB, a dataset and suite of tasks designed to evaluate the reasoning capabilities of large language models (LLMs) within the Arabic legal domain. While existing Arabic benchmarks cover some knowledge-intensive tasks such as retrieval and understanding, substantial datasets focusing specifically on multistep reasoning for Arabic LLMs, especially in open-ended contexts, are lacking. The dataset comprises over 13K commercial court cases from Saudi Arabia, with each case including the facts presented, the reasoning of the court, the verdict, as well as the cited clauses extracted from the regulatory documents. We define a set of challenging tasks leveraging this dataset and reflecting the complexity of real-world legal reasoning, including verdict prediction, completion of reasoning chains in multistep legal arguments, and identification of relevant regulations based on case facts. We benchmark a representative selection of current open and closed Arabic LLMs on these tasks and demonstrate the dataset's utility for instruction tuning. Notably, we show that instruction-tuning a modest 12B parameter model using ALARB significantly enhances its performance in verdict prediction and Arabic verdict generation, reaching a level comparable to that of GPT-4o.
format Preprint
id arxiv_https___arxiv_org_abs_2510_00694
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle ALARB: An Arabic Legal Argument Reasoning Benchmark
Shairah, Harethah Abu
AlHarbi, Somayah
AlHussein, Abdulaziz
Alsabea, Sameer
Shaqaqi, Omar
AlShamlan, Hebah
Knio, Omar
Turkiyyah, George
Computation and Language
Artificial Intelligence
Information Retrieval
We introduce ALARB, a dataset and suite of tasks designed to evaluate the reasoning capabilities of large language models (LLMs) within the Arabic legal domain. While existing Arabic benchmarks cover some knowledge-intensive tasks such as retrieval and understanding, substantial datasets focusing specifically on multistep reasoning for Arabic LLMs, especially in open-ended contexts, are lacking. The dataset comprises over 13K commercial court cases from Saudi Arabia, with each case including the facts presented, the reasoning of the court, the verdict, as well as the cited clauses extracted from the regulatory documents. We define a set of challenging tasks leveraging this dataset and reflecting the complexity of real-world legal reasoning, including verdict prediction, completion of reasoning chains in multistep legal arguments, and identification of relevant regulations based on case facts. We benchmark a representative selection of current open and closed Arabic LLMs on these tasks and demonstrate the dataset's utility for instruction tuning. Notably, we show that instruction-tuning a modest 12B parameter model using ALARB significantly enhances its performance in verdict prediction and Arabic verdict generation, reaching a level comparable to that of GPT-4o.
title ALARB: An Arabic Legal Argument Reasoning Benchmark
topic Computation and Language
Artificial Intelligence
Information Retrieval
url https://arxiv.org/abs/2510.00694