
LegoGPT is a text-to-3D generation tool that creates physically stable LEGO brick models from written prompts. Trained on a dataset of over 47,000 stable LEGO structures, the model generates designs using 1-unit-tall cuboid bricks within a 20x20x20 grid. It ensures each model is buildable by integrating physics-aware constraints during generation.
Designed for a fixed set of 21 object categories, LegoGPT produces functional and visually coherent LEGO structures based on user input. The tool emphasizes physical feasibility, making the outputs suitable for manual or robotic assembly. It also introduces a dataset, StableText2Lego, and supports future development in AI-guided 3D design.
