Andrej Karpathy, Tesla's ex-AI head who developed the flagship full self-driving (FSD) system, said Google's Waymo is just as good as Tesla's FSD. "They both offer what now intuitively feels to me like 'perfect drive'," Karpathy said. Tesla CEO Elon Musk responded, saying, "Andrej's understanding is dated...Tesla AI software has advanced vastly beyond what it was when he left."