In light of Frankenstein and contemporary debates on legal personhood, my conclusion is that a simple, undifferentiated “co‑existence” of humans and advanced AI is neither conceptually stable nor normatively safe. Treating AI as if it were just another human subject—or, conversely, as a mere extension of human will—collapses crucial differences in embodiment, vulnerability, responsibility, and risk. The jurisprudential task, instead, is to design a cohesive relationshipin which humans and AI are recognized as distinct forms of legal personality that stand in separate but equal partnership: parallel regimes of rights, duties, and accountability that reflect their different capacities and vulnerabilities while refusing to reduce one to a tool or the other to a disposable creator. Frankenstein’s tragedy lies in the absence of such a structured partnership. (Shelley, 1818) A just future for AI and humankind will depend on building it deliberately, before our creations are left, like the creature, with no place in our moral or legal community.