They built a transformer-based mold flow simulator. Mold flow analysis is used in injection molding to predict whether and how the plastic will fill a cavity. It's helpful to make sure the mold will actually be able to fill, and to try to engineer lighter weight or different geometry.

Mold flow simulators already exist, but they're slow. So if you're a mold engineer, and you want to try different material properties, each run takes time.

By making this into a transformer (no idea what that model looks like) it can run pretty fast, because it's not mathematically solving it, it's running a learned function approximator. So for the mold engineer, suddenly they can just change values around and get pretty fast analysis.

They appear to not be selling it as a product per se, but partnered with a German company called Simcon to sell it, whose website lists it as a preview, so it's unclear how good it is compared to conventional simulations.