When OpenAI replaced GPT-4o with GPT-5, it triggered the Keep4o user resistance movement, revealing a conflict between rapid platform iteration and users' deep socio-emotional attachments to AI systems. This paper presents a phenomenon-driven, mixed-methods investigation of this conflict, analyzing 1,482 social media posts. Thematic analysis reveals that resistance stems from two core investments: instrumental dependency, where the AI is deeply integrated into professional workflows, and relational attachment, where users form strong parasocial bonds with the AI as a unique companion. Quantitative analysis further shows that the coercive deprivation of user choice was a key catalyst, transforming individual grievances into a collective, rights-based protest. This study illuminates an emerging form of socio-technical conflict in the age of generative AI. Our findings suggest that for AI systems designed for companionship and deep integration, the process of change--particularly the preservation of user agency--can be as critical as the technological outcome itself.

翻译：当OpenAI以GPT-5取代GPT-4o时，引发了Keep4o用户抵制运动，揭示了平台快速迭代与用户对AI系统深层社会情感依恋之间的冲突。本文对这一冲突进行了现象驱动的混合方法研究，分析了1,482条社交媒体帖子。主题分析表明，抵制源于两种核心投入：工具性依赖（即AI深度融入专业工作流程）和关系性依恋（即用户与作为独特伴侣的AI形成强烈准社会联结）。定量分析进一步表明，强制剥夺用户选择权是关键催化剂，将个体不满转化为基于权利的集体抗议。本研究揭示了生成式AI时代一种新兴的社会技术冲突形式。我们的研究结果表明，对于为陪伴和深度集成而设计的AI系统，变革过程——特别是用户自主权的保留——可能与技术成果本身同等重要。