SmolLM2: When Smol Goes Big - Data-Centric Training of a Small Language Model. - Loubna Ben Allal; Anton Lozhkov; Elie Bakouch; Gabriel Martín Blázquez; Guilherme Penedo; Lewis Tunstall; Andrés Marafioti; Hynek Kydlícek; Agustín Piqueres Lajarín; Vaibhav Srivastav; Joshua Lochner; Caleb Fahlgren; et al. (CoRR, 2025)