The integration of artificial intelligence (AI) into library systems can transform traditional libraries into innovative, user-centric environments. AI-driven technologies, such as machine learning, natural language processing, computer vision, and predictive analytics, can enhance user experience, optimise resource management, and improve accessibility. These smart libraries offer personalized recommendations, automate administrative tasks, and provide inclusive services for users with diverse needs. AI does not replace librarians but allows them to focus on high-value services. However, ethical considerations like data privacy and algorithmic bias must be addressed. Real-world implementations in Singapore's NLB and Helsinki's Oodi confirm AI's potential for efficient, inclusive, and future-ready knowledge environments.