Tesla appears to be making some serious moves behind the scenes to bring autonomous driving to the world of heavy freight. The new, refreshed Tesla Semi was just spotted rolling around public roads rigged up with some very familiar-looking gear. It looks like the team is officially gathering the ground truthing data needed to train Full Self-Driving (Supervised) for the big rig. The sighting comes courtesy of a video posted by @teslaownersSV on X. The post pointed out that the new truck was seen driving near Tesla’s factory in Fremont, California, with its "roof loaded with ground truth validation equipment." This roof-mounted framework is pretty similar to the type of validation hardware we’ve seen strapped to passenger models right before Tesla enables its FSD software on them. The X post also highlighted the presence of washers for the new Semi’s expansive array of cameras. Caught the new Tesla Semi testing in Fremont today — roof loaded with ground truth validation equipment, full camera suite with washers, and it’s already ‘autonomy ready.’ — Tesla Owners Silicon Valley (@teslaownersSV) June 27, 2026 The future of freight is getting closer! 🔥🚛 pic.twitter.com/UjDkAA1nLl Built for Autonomy When Tesla unveiled its new Class 8 electric truck design last fall, it came stamped with an autonomy-ready promise. It features 10 external cameras alongside an internal cabin camera. Right now, those sensors handle standard safety features like automatic emergency braking and lane-keep assist, but this newly spotted validation rig indicates that a full rollout of FSD (Supervised) is actively being worked on. As customer deliveries continue to scale up out of Tesla’s dedicated Semi factory in Nevada, here’s a quick refresher on how the two available configurations stack up (check out our full breakdown of the Tesla Semi’s specs to learn more): | Spec | Standard Range