Marble is a new multimodal world model that enables users to create and interact with 3D environments using various input types like text, images, and video. Released to the public on November 12, 2025, Marble builds on previous beta versions by offering enhanced capabilities for generating 3D worlds. Users can create full 3D scenes from a single image or text prompt, but now they can also use multi-image prompts for greater creative control. This allows for more precision in the generated world, as users can stitch together different views and elements. The article highlights the introduction of Marble Labs, a creative hub aimed at artists and designers. This platform provides case studies, tutorials, and documentation to help users learn and experiment with world creation. Marble's editing tools are designed for iterative creativity, allowing users to make detailed changes. For advanced users, the new Chisel tool facilitates direct sculpting in 3D, enabling finer control over object placement and scene layout. Expanding worlds is another feature, where users can select regions of a generated world for enlargement or detail enhancement. This flexibility fosters creativity, allowing users to build larger, more intricate environments. Overall, Marble's capabilities are positioned to revolutionize how users construct and manipulate 3D spaces, making the process more intuitive and interactive.