Recent AI progress has followed a pattern. Across text, image, audio, and video, once the right technical foundations were discovered, it only took a few years for AI-generated outputs to go from merely passable to indistinguishable from human creation. Although it’s early, recent advances suggest that virtual worlds—3D environments you can explore and interact with—could be next.

This is the bet being made by pioneering AI researcher Fei-Fei Li , often called AI’s "godmother" for her contributions to computer vision. In November, her new startup, World Labs , launched its first commercial offering: a platform called Marble , where users can conjure exportable 3D environments from text, image, or video prompts.

The platform could prove immediately useful for design professionals, a

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