Tesla FSD v14.3 rolls out with MLIR rewrite, 20% faster reactions

Electrek
By Fred LambertApr 7, 2026, 5:52 pm122 ptsTrending
Tesla has started rolling out Full Self-Driving (Supervised) v14.3 to HW4 vehicles, and the headline change is under the hood: Tesla rewrote the AI compiler and runtime from scratch on MLIR, which the automaker says delivers a 20% faster reaction time. The update, shipping as software version 2026.2.9.6, also…

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