Skyrim – Open-source Large Weather Model (LWM) Zoo
Hi HN, I'm Efe from Secondlaw AI. We are building physics-informed large AI models. Currently, we are focusing on weather modelling. To benchmark SOTA, we had to build a forecasting infra for all available large weather models and we could not find a solid tooling to do so, so we built Skyrim. Within <5 mins and <5 LOC you can run forecasts on par with global weather models that are run on 100K+ CPU HPCs! We are implementing more models & fine-tuning capabilities. Let us know if anything more we can add, also happy to answer any questions!
In plain words
Skyrim is an open-source framework for running large weather forecasting models with minimal setup. Developed by Secondlaw AI, it allows users to execute weather predictions comparable to those from massive supercomputing systems using just a few lines of code in under five minutes. The tool provides infrastructure to benchmark multiple state-of-the-art weather models and includes plans for additional models and fine-tuning capabilities. It is designed for researchers and developers working with weather prediction AI.
written from the facts on this page · September 2026
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