Following yesterday's v14.2.2 release, Tesla deployed Full Self-Driving (Supervised) v14.2.2.1 on December 24, 2025, with tweaks for rain and parking performance. The update coincides with FSD activation for Cybertrucks in South Korea and sparks comparisons to rivals like Waymo.
Tesla's AI team pushed Full Self-Driving (Supervised) v14.2.2.1 to vehicles on December 24, 2025—a day after v14.2.2—emphasizing refinements for challenging conditions like heavy rain, standing water, and faded lanes. Building on prior enhancements to the vision encoder, obstacle detection, and arrival options, this minor update delivers smoother maneuvers and precise parking.
Early tester @BLKMDL3 shared standout results from rainy Los Angeles drives: 'Zero steering hesitation or stutter, confident lane changes, and maneuvers executed with precision.' Parking succeeded in single attempts, lane visualization outperformed humans in heavy rain, and on a dark, wet canyon road, FSD 'stayed centered, kept speed well, and handled curves better than most human drivers.' These gains underscore Tesla's rapid iteration pace, even through holidays.
In parallel, Tesla enabled FSD v14.1.4 for Cybertrucks in South Korea via software 2025.47.5—the first such deployment there, following vehicle orders in August 2025 and supervised FSD debut a month earlier, making South Korea Tesla's seventh FSD market.
The timing drew broader attention: Elon Musk critiqued ex-AI lead Andrej Karpathy's 'dated' FSD-Waymo comparison. Ark Invest's Tasha Keeney emphasized Tesla's scale advantage, with 500,000 Q3 2025 vehicles versus Waymo's ~3,000 robotaxis. Tesla operates ~200 robotaxis in the U.S., mainly Model Ys in Austin since June 2025, including recent driverless tests.
