X-Token: Projection-Guided Cross-Tokenizer Knowledge Distillation. - Sharath Turuvekere Sreenivas; Adithyakrishna Venkatesh Hanasoge; Mingyu Yang; Ali Taghibakhshi; Saurav Muralidharan; Ashwath Aithal; Pavlo Molchanov 001 (CoRR, 2026)