Marble 1.0 Draft is World Labs' fastest world generator. Give it one input (a text prompt, a single image, a 360 panorama, 2 to 8 photos of a scene, or a walkthrough video) and it builds a navigable 3D Gaussian-splat world in roughly a minute, returned as a compact .spz splat you can orbit, walk through, and export to mesh. Because the same prompt or image and seed reproduce the same world on every tier, lock a composition here, then reproduce it at higher quality on Marble 1.1 or 1.1 Plus. Ideal for previz, greyboxing, and rapid concepting.