Tesla Quietly Updates HW4 FSD Hardware

Not a Tesla App reported on September 30, 2025, that Tesla has quietly modified its Hardware 4 (AI4) Full Self-Driving computer, introducing a version with fewer components. The publication noted that this change is part of a deliberate push by the automaker to increase the hardware's overall efficiency. The source did not detail the specific components that were removed or consolidated in the new design.

While the move to reduce the number of parts could be viewed as a cost-cutting measure, the changes also indicate a strategic direction toward a simpler, more integrated hardware design. This revision follows Tesla's pattern of iterative updates to its vehicle technology. The modification points to the company's ongoing effort to streamline its AI computer architecture for future applications.