Stanford AI professor and renowned AI pioneer Fei-Fei Li’s startup, WorldLabs, on Thursday launched its first commercial product, Marble, powered by a multimodal world model.

The company described Marble as “the foundation for building a spatially intelligent future,” capable of generating high-fidelity, persistent 3D worlds from a single image, a video clip, or a text prompt.

Just two months ago, WorldLabs shared a preview of Marble. The fully public launch expands its capabilities, supporting large-scale multimodal inputs. Alongside the release, WorldLabs introduced MarbleLabs, a creative hub designed to foster experimentation and content creation.

Marble adopts a freemium and subscription-based pricing model with four tiers. The free plan allows four generations per month using text and image inputs only. The standard subscription costs $20 per month and adds multi-image and video inputs plus advanced editing tools. The premium flagship plan is priced at $95 per month, offering 75 generations and full access to all features.