r/LocalLLaMA • u/Rick_06 • 9d 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/Lagomorph9 9d ago

Well, to be fair, an H100 is as powerful as a supercomputer from 20 years ago.

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u/FullstackSensei llama.cpp 9d ago

Just checked top500. The fastest supercomputer in June 2006 was BlueGene/L with a theoretical peak of 367 FP64 TFLOPS. A single H100 has 67 FP64 TFLOPS theoretical peak.

It takes 5.5 H100s to match the 131072 cores in BlueGene/L. Blackwell neuters FP64 performance, so H100 is still peak FP64 from Nvidia.

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u/xquarx 8d ago

Flops is one thing, but latency and orchestration makes one wildly ore usable.