Roblox launches AI-powered 4D model creation
Roblox opened the beta for its 4D creation tool on February 4. The tool generates interactive 3D objects from natural language prompts, and unlike standard text-to-3D tools, these objects have real physics and player-driven behavior built in.
Roblox VP of AI explains the Cube foundation model and 4D creation
What "4D" means here
The "4D" in Roblox's naming refers to interactivity over time. A 3D model is a static mesh. A 4D object is a mesh with behavior. You prompt "a red sports car" and get a drivable vehicle with four independently spinning wheels, a body that responds to collisions, and controls that react to player input.
The system uses "schemas" that define object structure and behavior. At launch, two schemas are available:
- Car-5: Five-part vehicles with working wheels, steering, and collision physics
- Body-1: Single-piece objects like boxes, sculptures, or furniture with basic interactive properties
The numbers
During early access (starting November 2025), players generated over 160,000 objects using the 4D tools. Users who engaged with 4D generation showed a 64% average increase in play time compared to baseline.
A showcase experience called "Wish Master" by developer Laksh lets players generate and drive cars, fly planes, and control dragons, all created through prompts in real time.
A creator testing the 4D AI creation tools inside Roblox
What's coming next
Roblox plans to let creators build custom schemas for more object types beyond cars and simple bodies. They're also working on reference-image-to-3D generation and what they call "real-time dreaming," an AI world model approach that generates dynamic environments and objects on the fly.
This builds on their earlier Cube 3D model (released March 2025), which was open-sourced and generated over 1.8 million 3D objects on the platform.