Cartridges: Lightweight and general-purpose long context representations via self-study - Eyuboglu, Sabri; Ehrlich, Ryan; Arora, Simran; Guha, Neel; Zinsley, Dylan; Liu, Emily; Rudra, Atri; Zou, James Y; Mirhoseini, Azalia; Re, Christopher (International Conference on Learning Representations, 2026)