Collective Critics for Creative Story Generation
Minwook Bae, Hyounghun Kim
TL;DR
Long-form story generation with narrative coherence and reader engagement remains difficult for LLMs. CritiCS introduces a two-stage plan-to-text framework in which a team of LLM critics and a leader iteratively refine story plans (CrPlan) and prose (CrText) using explicit creative criteria, including persona-driven critiques. Extensive human evaluations show that CrPlan boosts plan creativity and coherence, while CrText enhances expressiveness in terms of image and voice without sacrificing coherence, across multiple backbones and baselines. The framework supports interactive human–machine collaboration and adaptable critique configurations, offering a scalable approach to more engaging AI-generated narratives.
Abstract
Generating a long story of several thousand words with narrative coherence using Large Language Models (LLMs) has been a challenging task. Previous research has addressed this challenge by proposing different frameworks that create a story plan and generate a long story based on that plan. However, these frameworks have been mainly focusing on maintaining narrative coherence in stories, often overlooking creativity in story planning and the expressiveness of the stories generated from those plans, which are desirable properties to captivate readers' interest. In this paper, we propose Collective Critics for Creative Story Generation framework (CritiCS), which is composed of plan refining stage (CrPlan) and story generation stage (CrText), to integrate a collective revision mechanism that promotes those properties into long-form story generation process. Specifically, in each stage, a group of LLM critics and one leader collaborate to incrementally refine drafts of plan and story throughout multiple rounds. Extensive human evaluation shows that the CritiCS can significantly enhance story creativity and reader engagement, while also maintaining narrative coherence. Furthermore, the design of the framework allows active participation from human writers in any role within the critique process, enabling interactive human-machine collaboration in story writing.
