Envision Tianji weather model ranks first in ECMWF AI competition

Envision has announced that its independently developed weather foundation model, Envision Tianji, secured first place in the latest AI Weather Quest competition organized by the European Centre for Medium-Range Weather Forecasts (ECMWF).

Competing under the codename Arcana, the model outperformed nearly 20 top global teams across all assessed metrics for the 19 to 25 day forecast window. These metrics included near-surface temperature, mean sea level pressure, and precipitation. The competition specifically evaluates the ability to provide probabilistic forecasts for weekly conditions several weeks in advance.

This achievement follows other high-level recognitions for the Tianji model, including top-tier placements in the global WeatherBench 2 evaluation and first place in a deterministic forecast track organized by China's National Meteorological Center. The model has also demonstrated utility in the energy sector, winning competitions related to AI load forecasting for State Grid and China Southern Power Grid.