AI End-to-End Radiation Treatment Planning Under One Second. - Simon Arberet; Riqiang Gao; Martin Kraus; Florin C. Ghesu; Wilko Verbakel; Mamadou Diallo; Anthony Magliari; Venkatesan Karuppusamy; Sushil Beriwal; REQUITE Consortium; Ali Kamen; Dorin Comaniciu (CoRR, 2026)