@article{preservingfoundationalcapabilitiesinflow, title = {Preserving Foundational Capabilities in Flow-Matching VLAs through Conservative SFT}, author = {Tianyi Zhang and Shaopeng Zhai and Haoran Zhang and Fuxian Huang and Qi Zhang}, year = {2026}, eprint = {2605.08879}, archivePrefix = {arXiv}, url = {https://arxiv.org/abs/2605.08879}, }