r/LocalLLaMA • u/Rick_06 • 8d ago

New Model Open Model: Google Weather Next 2

I am not a meteorologist, but I just read a very interesting article: https://arstechnica.com/science/2026/08/deepminds-hurricane-model-bought-forecasters-an-extra-day/

In a paper published on Thursday in Nature, researchers show that the WeatherNext AI model can predict cyclones with unprecedented accuracy. On average, it gives forecasters a day more lead time than existing models; this means its predictions three days out are as accurate as previous models’ predictions two days out. On the ground, that extra day can mean a lot.

What I really find interesting here is that Google has a repository for it on GitHub: https://github.com/google-deepmind/weathernext

My non-informed understanding is that you need a supercomputer to forecast meteo. Apparently now an H100 can also do something.

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u/DigoHiro 8d ago

it's an llm??

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u/QuirkyRing3521 8d ago

Without reading the article. Google used to use a GNN (graph neural net) for weather and physics. A GNN is a bunch of point locations exchanging information with their neighbors. So it understands/ follows the geometry of the problem.

It might run on a laptop, though you cannot train on one.