tech
March 9, 2026
Google DeepMind’s New Weather Forecaster Blows Away the Competition
Google DeepMind researchers have built an AI weather forecasting tool that makes faster and more accurate predictions than the best system available today.
TL;DR
- Google DeepMind's GenCast AI model makes faster and more accurate weather predictions than current leading systems.
- GenCast outperformed the ENS forecast 97% of the time for predictions up to 15 days in advance.
- The model is a diffusion machine learning model trained on four decades of data.
- GenCast can generate forecasts in 8 minutes, compared to hours for traditional models.
- It runs on a single Google Cloud TPU, leveraging its trained 'knowledge' rather than reprocessing data.
- GenCast improves upon Deepmind's previous GraphCast model and competes with other AI forecasters like Nvidia's FourCastNet and Huawei's Pangu-Weather.
- Experts suggest a hybrid approach combining human assessment, traditional models, and AI will provide the greatest value.
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