Constitutional Classifiers++: Efficient Production-Grade Defenses against Universal Jailbreaks. - Hoagy Cunningham; Jerry Wei; Zihan Wang; Andrew Persic; Alwin Peng; Jordan Abderrachid; Raj Agarwal; Bobby Chen; Austin Cohen; Andy Dau; Alek Dimitriev; Rob Gilson; et al. (CoRR, 2026)