WeatherNext 3's "50% better rain forecasts" claim comes from Google alone, but the shift to training on observations is real
Google DeepMind's new weather model refreshes every hour from satellite data and learns partly from raw observations. Its headline precipitation gains come from Google's own scoring and depend on which "ground truth" you score against: up to 60% against a dataset the model was trained on, but only about 10% against rain gauges.
- research