Roblox is launching a generative AI that builds 3D environments in a snap

Roblox's new tool works by "tokenizing" the 3D blocks that make up its millions of in-game worlds, or treating them as units that can be assigned a numerical value on the basis of how likely they are to come next in a sequence. This is similar to the way in which a large language model handles words or fractions of words. If you put "The capital of France is ..." into a large language model like GPT-4, for example, it assesses what the next token is most likely to be. In this case, it would be "Paris." Roblox's system handles 3D blocks in much the same way to create the environment, block by most likely next block.