CSWBench: Evaluating Context-Sensitive Code-Switching in Creative Writing
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CSWBench is a benchmark designed to evaluate context-sensitive code-switching in creative writing, featuring two settings: Focused Narrative and Extended Narrative. The accompanying CSWEval framework assesses event-level aspects such as Licensing, Contextual Appropriateness, and Functional Gain, as well as whole-text quality metrics tailored to each narrative setting. Experiments with twelve large language models reveal that while models show some code-switching competence, performance varies significantly across narrative contexts, with stronger challenges in multilingual literary integration and clearer associations between narratively salient switches and contextual/functional realization.
arXiv:2607. 00009v1 Announce Type: cross Abstract: Despite the remarkable proficiency of large language models (LLMs) in basic writing assistance, their utility in creative writing is fundamentally hindered by a persistent binary failure.
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The paper investigates how Large Language Models (LLMs) construct fictional worlds, specifically examining setting as a measurable aspect of storyworld creation. By generating 1,000 AI stories per model in English and German and comparing them to human-authored fiction from Project Gutenberg, the authors classify narrative space into five categories—action, perceived, visual, descriptive, and no space—using fine‑tuned BERT classifiers. Results show that human texts mainly use action space, grounding narratives in character-environment interaction, while LLMs consistently overproduce perceived space, focusing on atmosphere and affect, with this pattern varying by model and language.