FSD

Tesla rolls out FSD v14.3 (2026.2.9.6) with better reaction time, rewritten AI compiler with MLIR (Release Notes, rollout status)

Tesla has begun the public rollout of its Full Self-Driving (FSD) software version 14.3, which CEO Elon Musk previously indicated is a major update. The release focuses on improved vehicle reaction times and features a rewritten AI compiler using MLIR technology. For owners and enthusiasts, this represents a significant step forward in the performance and underlying architecture of Tesla's autonomous driving system.