Roblox Cube
VerifiedRoblox's open-source foundation model for generating 3D objects from text
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Roblox Cube
What it is
Roblox Cube is the company's core generative AI system for 3D content, announced in March 2025. Its first capability, Cube 3D, generates 3D meshes from text prompts, and Roblox released a version of the model as open source on GitHub and Hugging Face so developers outside the platform can run, fine-tune and extend it. Inside Roblox, creators can access mesh generation in Roblox Studio and through an in-experience API, then refine results with standard tools. Roblox says the model is trained on native 3D data rather than reconstructing shapes from images, aiming for objects that work in game engines. It is aimed at game developers, 3D researchers and Roblox creators.
Key features
- Text-to-3D mesh generation
- Open-source code and weights
- Roblox Studio integration
- Trained on native 3D data
What we liked
- + Free and open source
- + Backed by a major game platform
- + Usable inside and outside Roblox
Worth noting
- · Running it locally needs technical setup and a capable GPU
- · Image input and scene generation are still on the roadmap
Editor's notes
More context from AI BirdView
Roblox Cube is notable because a major game platform chose to share a version of its 3D foundation model openly. Developers can study the code, run the model on their own hardware and build on it, while Roblox creators get the same core technology inside Studio.
- Text-to-3D mesh generation through Cube 3D, the system's first capability
- Open-source code on GitHub and model weights on Hugging Face
- Access in Roblox Studio and through an in-experience API for creators
- Training on native 3D data, which Roblox says yields objects better suited to game engines
- A published roadmap toward scene generation and multimodal inputs
Roblox Cube is a strong pick for game developers, technical artists and researchers who want a text-to-3D model they can inspect and adapt. A practical tip: start with short, specific prompts that describe a single object, then bring the mesh into Studio or your usual 3D tool for scaling, materials and cleanup. Treat generated meshes as a strong first pass rather than final production assets, and expect to refine them.
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