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Nov 24, 2025 · Artificial Intelligence

Introducing AION-1: The First Astronomical Multimodal Foundation Model Trained on 200M Targets

AION-1, developed by a consortium including UC Berkeley, Cambridge and Oxford, is the first large‑scale multimodal foundation model for astronomy that unifies images, spectra and catalog data via an early‑fusion backbone, achieving zero‑shot and linear‑probe performance that rivals or surpasses task‑specific models across diverse scientific tasks.