On May 28, 2026, at the "Dare to Lead" Intelligent Strategy Launch Event held in Shenzhen, BYD officially introduced China's inaugural 4nm automotive-grade intelligent driving chip, the "Xuanji A3," and declared its large-scale production. The chip is built on a 16-core CPU and 3-core NPU architecture, featuring three parallel units that collectively deliver a computational capacity surpassing 2100TOPS. It boasts a 20% reduction in power consumption per unit of computational power compared to similar products, along with a 100% increase in computational power utilization, enabling comprehensive support for L3/L4 autonomous driving across all scenarios. As the sole automaker globally with end-to-end chip manufacturing capabilities, BYD attains full-chain autonomy—spanning from product definition to wafer fabrication—through its vertically integrated IDM model. The introduction of the Xuanji A3 signifies China's intelligent automotive industry's shift from "isolated technological advancements" to "system-level capability rivalry." Its large-scale production not only disrupts the overseas monopoly on intelligent driving chips but also fosters the widespread integration of advanced driver-assistance technologies in mainstream markets via an "intelligent driving democratization" approach, presenting a Chinese resolution to the global intelligent automotive sector.