IIT Kharagpur engineer Anushka Aashvi made OpenAI's latest AI model o3 solve JEE Advanced 2025's question paper, considered one of the toughest exams globally. o3 scored 327 of 360, which would earn it all India rank 4. o3 easily solved lengthy algebra and calculus problems but struggled with graphic interpretation, taking 9+ minutes to give a wrong answer, Aashvi said.