This paper argues that artificial intelligence may become an influential factor in a cultural movement away from belief in objective morality and toward practical forms of moral non-realism. The claim is not that AI will settle metaethics or demonstrate the falsity of moral realism. Rather, AI is likely to change the public conditions under which moral realism feels plausible, necessary, and socially useful. It will do so by stress-testing claimed objective moral systems, making value pluralism