Marble: A Multimodal World Model

https://www.worldlabs.ai/blog/marble-world-model

Generally available 2025-11-12; inputs text, images, video, coarse 3D layouts; outputs Gaussian splats, triangle meshes, collider meshes for coarse physics, videos; Chisel blockout plus style prompt; Spark renderer for three.js; artifacts and invented regions noted.

3D Gaussian Splatting, Prompt-to-persistent 3D world generation