VAMOS: A Hierarchical Vision-Language-Action Model for Capability-Modulated and Steerable Navigation. - Mateo Guaman Castro; Sidharth Rajagopal; Daniel Gorbatov; Matt Schmittle; Rohan Baijal; Octi Zhang; Rosario Scalise; Sidharth Talia; Emma Romig; Celso de Melo; Byron Boots; Abhishek Gupta 004 (CoRR, 2025)