GenCast
Accurate AI-generated weather forecasts up to 15 days ahead
GenCast launched on December 6, 2024 with 16 votes, #930 of 5,365 launches that month and more than 75% of that year's launches. The site was still online in September 2026, 1 year on.
What it does
GenCast predicts weather and the risks of extreme conditions delivering faster, state-of-the-art accurate forecasts up to 15 days ahead. The model’s code, weights, and forecasts, are open source to support the wider weather forecasting community.
Weather impacts all of us — shaping our decisions, our safety, and our way of life. As climate change drives more extreme weather events, accurate and trustworthy forecasts are more essential than ever. Yet, weather cannot be predicted perfectly, and forecasts are especially uncertain beyond a few days. Because a perfect weather forecast is not possible, scientists and weather agencies use probabilistic ensemble forecasts, where the model predicts a range of likely weather scenarios. Such ensemble forecasts are more useful than relying on a single forecast, as they provide decision makers with a fuller picture of possible weather conditions in the coming days and weeks and how likely each…from deepmind.google
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