Modalities, a PyTorch-native Framework For Large-scale LLM Training and Research. - Max Lübbering; Timm Ruland; Richard Rutmann; Felix Stollenwerk; David Fitzek; Michael Fromm 001; Alexander Arno Weber; Rafet Sifa; Nicolas Flores-Herr; Joachim Köhler; Mehdi Ali (CoRR, 2026)