BYD unveiled the Xuanji A3, described as China’s first automotive-grade 4nm chip for self-driving vehicles, already in mass production. The chip is positioned as having the lowest power consumption per unit of compute in its class, delivering about 20% less than comparable semiconductors. One chip provides 700 TOPS, while three chips together provide 2,100 TOPS for Level 3 and Level 4 autonomous driving functions. The chip powers a laptop-sized central computing platform that unifies the smart cockpit, driver-assistance system, and core electric propulsion. BYD also plans to expand its God's Eye driver-assistance system across all models sold in China, including the Seagull compact hatchback starting at 69,800 yuan, which received LiDAR in its 2026 model.
"BYD has unveiled the Xuanji A3, which it calls China’s first automotive-grade 4-nanometre chip for self-driving vehicles. CEO Wang Chuanfu announced the chip at an event at BYD's Shenzhen headquarters on 28 May, saying it delivers the lowest power consumption per unit of compute in its class, drawing roughly 20% less than comparable semiconductors. The chip has already entered mass production."
"A single Xuanji A3 delivers 700 TOPS of computing power. A cluster of three chips reaches 2,100 TOPS, enough to support Level 3 and Level 4 autonomous driving functions. The chip is the centrepiece of a new laptop-sized central computing platform that unifies three previously separate vehicle domains: the smart cockpit, the driver-assistance system, and the core electric propulsion."
"Alongside the chip, BYD announced it will expand its God's Eye driver-assistance system across all models sold in China, including mass-market vehicles like the Seagull compact hatchback, which starts at 69,800 yuan ($10,300). The Seagull became the first car in its class to receive LiDAR when the 2026 model launched on 11 May, a technology previously reserved for premium vehicles."
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