With the disappearing divide between the physical and virtual realms and the pervasiveness of smart devices and services into every aspect of life, a new generation of intelligent, real-time interactive, and personalised agents is needed to build engagement and trust between human and machine across devices and media platforms. AI beings is a new category of intelligent, autonomous, evolving, and ubiquitous human-AI interface that traverse the physical and digital divide to engage with us anywhere, anytime, as part of an interactive content and narrative experience. AI beings will unite and elevate the core human experience in the upcoming age of AI and the advent of the immersive life in the metaverse.