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license: apache-2.0
library_name: pytorch
tags:
- weather
- era5
- pytorch
- sonny
- stepnets
pipeline_tag: other
---
# Sonny
StepNets one-step weather backbone: variable-aware embedding and a two-stage trunk, 69 ERA5-like variables, **1.5° grid (121×240 lat×lon in the paper)**.
## Citation
If you use this checkpoint or architecture, cite:
**Sonny: Breaking the Compute Wall in Medium-Range Weather Forecasting** — Minjong Cheon, arXiv:2603.21284, 2026.
[https://arxiv.org/abs/2603.21284](https://arxiv.org/abs/2603.21284)
Code: [https://github.com/jmj2316/Sonny](https://github.com/jmj2316/Sonny)
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