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ConfirmedScience & maths30 Oct, 10:51 UTC

Envision's Tianji model, entered as team Arcana, ranks first in ECMWF's AI Weather Quest for days 19 to 25

ECMWF's ASO 2026 leaderboard lists ArcanaSphericalBeta first globally with an RPSS of 0.236 for the subseasonal window; the page notes scores update weekly during the competition.

Read at ECMWF AI Weather Quest leaderboard

+ Envision press release

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