The Design Space of Tri-Modal Masked Diffusion Models. - Louis Béthune; Victor Turrisi; Bruno Kacper Mlodozeniec; Pau Rodríguez López; Lokesh Boominathan; Nikhil Bhendawade; Amitis Shidani; Joris Pelemans; Theo X. Olausson; R. Devon Hjelm; Paul Dixon; João Monteiro 002; et al. (CoRR, 2026)