Motif-Video 2B: Technical Report. - Junghwan Lim; Wai Ting Cheung; Minsu Ha; Beomgyu Kim; Taewhan Kim; Haesol Lee; Dongpin Oh; Jeesoo Lee; Taehyun Kim; Minjae Kim; Sungmin Lee; Hyeyeon Cho; et al. (CoRR, 2026)