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Main Authors: Römisch, Johannes, Gorovaia, Svetlana, Halchynska, Mariia, Schmidt, Gleb, Yamshchikov, Ivan P.
Format: Preprint
Published: 2025
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Online Access:https://arxiv.org/abs/2508.00680
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author Römisch, Johannes
Gorovaia, Svetlana
Halchynska, Mariia
Schmidt, Gleb
Yamshchikov, Ivan P.
author_facet Römisch, Johannes
Gorovaia, Svetlana
Halchynska, Mariia
Schmidt, Gleb
Yamshchikov, Ivan P.
contents This article explores the zero-shot performance of state-of-the-art large language models (LLMs) on one of the most challenging tasks in authorship analysis: sentence-level style change detection. Benchmarking four LLMs on the official PAN~2024 and 2025 "Multi-Author Writing Style Analysis" datasets, we present several observations. First, state-of-the-art generative models are sensitive to variations in writing style - even at the granular level of individual sentences. Second, their accuracy establishes a challenging baseline for the task, outperforming suggested baselines of the PAN competition. Finally, we explore the influence of semantics on model predictions and present evidence suggesting that the latest generation of LLMs may be more sensitive to content-independent and purely stylistic signals than previously reported.
format Preprint
id arxiv_https___arxiv_org_abs_2508_00680
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Better Call Claude: Can LLMs Detect Changes of Writing Style?
Römisch, Johannes
Gorovaia, Svetlana
Halchynska, Mariia
Schmidt, Gleb
Yamshchikov, Ivan P.
Computation and Language
This article explores the zero-shot performance of state-of-the-art large language models (LLMs) on one of the most challenging tasks in authorship analysis: sentence-level style change detection. Benchmarking four LLMs on the official PAN~2024 and 2025 "Multi-Author Writing Style Analysis" datasets, we present several observations. First, state-of-the-art generative models are sensitive to variations in writing style - even at the granular level of individual sentences. Second, their accuracy establishes a challenging baseline for the task, outperforming suggested baselines of the PAN competition. Finally, we explore the influence of semantics on model predictions and present evidence suggesting that the latest generation of LLMs may be more sensitive to content-independent and purely stylistic signals than previously reported.
title Better Call Claude: Can LLMs Detect Changes of Writing Style?
topic Computation and Language
url https://arxiv.org/abs/2508.00680