{"data":{"event":{"id":"05666f44-9f70-4123-ae47-bcbeec2b1eea","slug":"pangu-weather-medium-range","title":"Pangu-Weather outperforms IFS on many medium-range scores at far lower cost","short_summary":"Huawei’s Pangu-Weather, published in Nature on 5 July 2023, reported 3D Earth-specific transformer forecasts that beat operational IFS on a majority of 3–7 day upper-air targets while running more than 10,000 times faster.","full_description":"The paper helped trigger the 2023–2025 wave of ML weather models. Forecasts are deterministic and trained on ERA5; operational caveats include precipitation and extreme-event calibration. ECMWF and others later ran independent intercomparisons.\n\nUpdate (2026-09-22): Anthropic Releases Claude Opus 5.5: Fable 5.1-Level Performance at 40% Lower Running Cost Than Opus 5 - MarkTechPost. 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