NYC, carved out of a model, sits in your phone now

A new paper on arXiv (2608.08654) shows how you can use one AI model to generate a 3D model of another. The technique is simple in principle: feed a prebuilt model into a foundation model and let it spit back a new one. What's interesting is the application — the authors made a model of New York City. You can spin it, zoom in, walk around. It's a digital twin of the boroughs, rendered by AI.

This is the kind of thing that sounds like a demo until someone builds the pipeline and starts doing it at scale. The 3D web is getting crowded with these things. GLB files are the lingua franca, and the file sizes are shrinking as the methods improve. Once the models can generate them on the fly — without a human sculpting — the use cases multiply fast.

Why this matters for us: it's another step toward a world where the neighborhoods we live in — the bodegas, the tenements, the bodegas again — can be captured, shared, and used without needing a team of artists behind them.