2 OLMo 2 Furious. - OLMo, Team; Walsh, Pete; Soldaini, Luca; Groeneveld, Dirk; Lo, Kyle; Arora, Shane; Bhagia, Akshita; Gu, Yuling; Huang, Shengyi; Jordan, Matt; Lambert, Nathan; Schwenk, Dustin; et al. (CoRR, 2025)