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Mobility

Tesla FSD not only faster on HW4; older HW3 improves 36.6 percent

Tesla’s latest Full Self-Driving software significantly improved response times to an unexpected pedestrian scenario even on the same in-car computer, a test showed. HW4 with FSD v14.3.4 was the quickest at 0.450 seconds. On HW3, FSD v14 Lite responded in 0.675 seconds, while older FSD v12.6.4 took 1.065 seconds. The comparison suggests performance depends on software as well as hardware, though it is not enough to judge overall safety.

Mobility

Tesla rolls out FSD v14 Lite for HW3, still without unsupervised self-driving

Tesla has begun rolling out Full Self-Driving (FSD) v14 Lite for HW3 vehicles, marking the first large-scale update for about 4 million cars stuck on FSD v12.6 since early 2025. The update is initially for early-access users and aims to bring v14 driving behavior to HW3 hardware. Tesla and executives say safety and several functions have improved, but it remains a supervised Level 2 driver-assistance system and does not enable unsupervised self-driving.