We are very happy to share that the very first Leaderboards of the AI Weather Quest are now online, displaying the outcome of Competition Week 1:
View the Leaderboards
The page shows Ranked Probability Skill Scores (RPSS) for submitted forecasts, along with team and model rankings. Results will be updated every week and are presented both weekly and period-aggregated, with evolution graphs that will increasingly highlight how ranks and scores shift as the competition progresses.
Need help navigating? A step-by-step guide is available.
Results from the first competition period (September–November) will be celebrated in a special Award Webinar on 18 December 2025. Top scorers and standout contributors will present their work, it’s a great opportunity to see the approaches making a difference.
Register here
Stay tuned as the challenge unfolds, and good luck to all teams in the coming weeks!
Please don’t hesitate to post your questions directly in this thread, or contact us at aiweatherquest@ecmwf.int if you encounter any issues.