LitBench: A Benchmark and Dataset for Reliable Evaluation of Creative Writing

Fuente: arXiv
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Autores principales: Fein, Daniel, Russo, Sebastian, Xiang, Violet, Jolly, Kabir, Rafailov, Rafael, Haber, Nick
Formato: Preprint
Publicado: 2025
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author Fein, Daniel
Russo, Sebastian
Xiang, Violet
Jolly, Kabir
Rafailov, Rafael
Haber, Nick
author_facet Fein, Daniel
Russo, Sebastian
Xiang, Violet
Jolly, Kabir
Rafailov, Rafael
Haber, Nick
contents Evaluating creative writing generated by large language models (LLMs) remains challenging because open-ended narratives lack ground truths. Without performant automated evaluation methods, off-the-shelf (OTS) language models are employed as zero-shot judges, yet their reliability is unclear in this context. In pursuit of robust evaluation for creative writing, we introduce LitBench, the first standardized benchmark and paired dataset for creative writing verification, comprising a held-out test set of 2,480 debiased, human-labeled story comparisons drawn from Reddit and a 43,827-pair training corpus of human preference labels. Using LitBench, we (i) benchmark zero-shot LLM judges, (ii) train Bradley Terry and generative reward models, and (iii) conduct an online human study to validate reward model rankings on newly LLM-generated stories. Our benchmark identifies Claude-3.7-Sonnet as the strongest off-the-shelf judge, reaching 73% agreement with human preferences; among trained reward models, Bradley-Terry and Generative reward models both attain an accuracy of 78%, outperforming all off-the-shelf judges. An online human study further confirms that our trained reward models consistently align with human preferences in novel LLM-generated stories. We release LitBench and reward models at https://huggingface.co/collections/SAA-Lab/litbench-68267b5da3aafe58f9e43461, providing a vetted resource for reliable, automated evaluation and optimization of creative writing systems.
format Preprint
id arxiv_https___arxiv_org_abs_2507_00769
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle LitBench: A Benchmark and Dataset for Reliable Evaluation of Creative Writing
Fein, Daniel
Russo, Sebastian
Xiang, Violet
Jolly, Kabir
Rafailov, Rafael
Haber, Nick
Computation and Language
Artificial Intelligence
Evaluating creative writing generated by large language models (LLMs) remains challenging because open-ended narratives lack ground truths. Without performant automated evaluation methods, off-the-shelf (OTS) language models are employed as zero-shot judges, yet their reliability is unclear in this context. In pursuit of robust evaluation for creative writing, we introduce LitBench, the first standardized benchmark and paired dataset for creative writing verification, comprising a held-out test set of 2,480 debiased, human-labeled story comparisons drawn from Reddit and a 43,827-pair training corpus of human preference labels. Using LitBench, we (i) benchmark zero-shot LLM judges, (ii) train Bradley Terry and generative reward models, and (iii) conduct an online human study to validate reward model rankings on newly LLM-generated stories. Our benchmark identifies Claude-3.7-Sonnet as the strongest off-the-shelf judge, reaching 73% agreement with human preferences; among trained reward models, Bradley-Terry and Generative reward models both attain an accuracy of 78%, outperforming all off-the-shelf judges. An online human study further confirms that our trained reward models consistently align with human preferences in novel LLM-generated stories. We release LitBench and reward models at https://huggingface.co/collections/SAA-Lab/litbench-68267b5da3aafe58f9e43461, providing a vetted resource for reliable, automated evaluation and optimization of creative writing systems.
title LitBench: A Benchmark and Dataset for Reliable Evaluation of Creative Writing
topic Computation and Language
Artificial Intelligence
url https://arxiv.org/abs/2507.00769