According to Andrej Karpathy (@karpathy) on Twitter, the latest Tesla HW4 Model X running FSD version 13 delivers a significant leap in autonomous driving performance. Karpathy highlights that the AI-driven Full Self-Driving system is now exceptionally smooth, confident, and consistently outperforms previous HW3 versions. Notably, the vehicle handled complex city scenarios, intricate left turns, and highway navigation without requiring human intervention, reducing typical post-drive issues to zero. Karpathy attributes these improvements to Tesla's data-driven, end-to-end neural network approach, as discussed in Ashok Elluswamy’s recent ICCV25 presentation, which leverages multi-modal sensor streams and continuous fleet learning. This robust AI stack positions Tesla as a leader in scalable autonomous driving, offering substantial business opportunities in robotaxi services, fleet management, and AI robotics platforms. (Source: @karpathy, Twitter; @aelluswamy, ICCV25 talk)