Mosaic generates 24-member 10-day global weather forecasts in under 12 seconds

A probabilistic weather model reached state-of-the-art skill while producing global ensemble forecasts on a single H100 in seconds

Today we release Mosaic, a probabilistic weather model that shifts the Pareto frontier of ML weather forecasting. It matches the skill of state-of-the-art models while generating a 24-member, 10-day global forecast in under 12 s on a singl
Ranked #5 on backlist 2026-05-20 (20 May 2026 UTC) · by (Max Zhdanov) ·

How it ranks: Backlist reads my Twitter/X timeline, scores every tweet for substance with an LLM rubric (not engagement), and publishes the daily top picks with a one-line takeaway. Curated by Surya Dantuluri.