4nm self-developed chip reaches mass production—Di Zi really has the lifeline of intelligent driving firmly in hand this time.

BYD officially announced its self-developed 4nm intelligent driving chip Xuanyi A3 at the intelligentization strategy launch event, which has begun mass production, supporting L3/L4 autonomous driving, with a total computing power of over 2100 TOPS for the three chips. Tianyancha shows that multiple Xuanyi-related trademarks have been registered by BYD, covering fields such as scientific instruments, website services, and transportation tools. Patent information indicates that BYD holds hundreds of patents in the chip field, including current sampling circuits, power chips, voltage regulators, and power management technologies, reflecting its accumulation in chip design and application.