Individual and Combined Effects of English as a Second Language and Typos on LLM Performance. - Serena Liu; Yutong Yang; Prisha Sheth; Weixuan Dong; Mingjiao Diao; Xinru Zhu; Nikhil Banga; Oscar Melendez; Arnav Sharma; Minda Zhao; Marina Lin; Mengyu Wang (CoRR, 2026)