Celebrating one year of LeMaterial: How open collaboration is accelerating materials discovery In December 2024, we announced the launch of LeMaterial, an open-source initiative led by Entalpic in collaboration with Hugging Face, designed to accelerate materials discovery by making high-quality datasets, benchmarks, models, and tools openly accessible to the AI for Science community. A year later, LeMaterial has grown from a first dataset into a broader collaborative effort. This article looks back at LeMaterial’s first year, including the collaborations that made it possible and the contribut