Abstract: This article examines the organizational implications of behavioral homogeneity in large language models (LLMs), a phenomenon we term the "Artificial Hivemind." Drawing on a comprehensive analysis of 26,000 real-world user queries and 70+ language models, we reveal that contemporary AI systems exhibit pronounced intra-model repetition and inter-model convergence, generating strikingly similar outputs despite variations in architecture, training, and scale. From an organizational leadership and work design perspective, this convergence poses critical challenges: the erosion of creative diversity in AI-assisted workflows, the potential amplification of groupthink in decision-making processes, and misalignment between organizational needs for pluralistic solutions and AI capabilities. We introduce evidence-based organizational responses spanning leadership communication strategies, work redesign initiatives, and governance frameworks. Our findings demonstrate that current reward models and AI evaluation systems are miscalibrated to human preferences when responses exhibit comparable quality but divergent styles—a critical gap for organizations deploying AI at scale. This research provides practitioners with actionable frameworks for diagnosing AI homogenization in their workflows, redesigning roles to preserve human creativity, and building governance structures that promote cognitive diversity rather than algorithmic conformity.