TL;DR
BYD has unveiled the Xuanji A3, China’s first automotive-grade 4nm chip for autonomous vehicles, offering 700 TOPS per chip. The company is expanding its God’s Eye driver assistance system to mass-market electric vehicles, including the $10,300 Seagull, as eight straight months of declining sales and a 55% profit drop force a technology-led pivot.
BYD has unveiled the Xuanji A3, which it calls China’s first automotive-grade 4-nanometer chip for autonomous vehicles. CEO Wang Chuanfu announced the chip at an event at BYD headquarters in Shenzhen on May 28, saying it offers the lowest power consumption per computing unit in its class, consuming about 20% less than comparable semiconductors. The chip has already entered mass production.
A single Xuanji A3 offers 700 TOPS of computing power. A cluster of three chips reaches 2,100 TOPS, enough to support Level 3 and 4 autonomous driving functions. The chip is the centerpiece of a new laptop-sized core computing platform that unifies three previously separate vehicle domains: the intelligent cockpit, the driver assistance system, and the core electric propulsion.
The semiconductor is close to the capabilities of Huawei Technologies, which currently makes automotive chips with a 7nm geometry, but has committed to introducing 1.4nm chips by 2031. The most advanced chip globally is TSMC’s 2nm N2 node. BYD’s ability to design and mass produce its own 4nm drive chip deepens a vertical integration strategy that already spans batteries, motors and vehicle manufacturing.
The Eye of God reaches the mass market
In addition to the chip, BYD announced that it will expand its God’s Eye driver assistance system to all models sold in China, including mass-market vehicles such as the Seagull compact hatchback, which from 69,800 yuan ($10,300). The Seagull became the first car in its class to receive LiDAR when the 2026 model launched on May 11, a technology previously reserved for premium vehicles.
The upgraded God’s Eye system, which includes city and highway navigation, traffic light recognition and automated parking, will be available as an add-on for 12,000 yuan ($1,770). Wang described the price as cost-only. BYD also offers a year of insurance that fully covers damage caused by accidents that occur while the latest version of God’s Eye is active, a direct bet that the system is reliable enough to warrant it.
A system with a troubled history
The insurance promise comes after months of complaints about God’s Eye’s performance. BYD made the system a standard feature on most of its vehicles last year, but the initial rollout used a tiered structure that limited advanced urban navigation to more expensive models, while giving affordable cars only basic highway cruise control. Reported users dangerous malfunction including unintentional acceleration, erratic lane changes, and steering movements that nearly send vehicles into oncoming traffic.
Unlike Tesla’s optional full self-driving package, BYD implemented God’s Eye in millions of vehicles, meaning every defect appeared at scale. The company says it has more than 3.15 million vehicles equipped with advanced driver assistance hardware on the road, generating approximately 200 million kilometers of driving data each day. BYD is using that data to train its algorithms through cloud-based global models and reinforcement learning, with iteration cycles running every three days.
Eight months of falling sales
The technology push comes at a difficult time for BYD’s business. Sales have fallen year over year for eight consecutive monthswith April 2026 volumes falling approximately 16% compared to the same period last year. First quarter net profit fell 55% to 4.09 billion yuan ($599 million) such as a fierce price war in China and a stronger yuan that compressed margins.
Revenue fell 12% to 150.2 billion yuan in the quarter. Operating expenses rose as BYD invested in smart driving hardware while lowering vehicle prices to compete with rivals such as Xiaomi, which entered the electric vehicle market with high-performance models, and Huawei-backed brands that have stepped up their presence. The only positive point has been exports, which increased more than 70% year-on-year to a record of 135,098 units in April.
The competitive context
Tesla finally launched its fully self-driving system in China after years of delays, but the technology still requires active human intervention and will be marketed under a different name due to scrutiny from Chinese transport authorities. Tesla relies on a vision-only approach that uses cameras and neural networks without LiDAR or radar, a fundamentally different and cheaper strategy that BYD and other Chinese automakers have criticized as less capable.
China’s Ministry of Industry and Information Technology issued its first Level 3 autonomous driving certifications in December 2025, approving cars from Changan Auto and BAIC Motor. BYD is waiting for China to formalize legislation that would allow for broader deployment of consumer-facing autonomous vehicles, which the company expects by 2027. Chinese EV makers are also aggressively expanding abroadwith BYD targeting between 1.3 and 1.6 million international deliveries in 2026.
The Xuanji A3 chip and God’s Eye expansion represent BYD’s attempt to shift the competitive battlefield from price to technology. A company that made its name with affordable electric vehicles is now trying to prove it can build the silicon, software and sensor systems needed to compete in intelligence. Whether the strategy works depends on whether the technology can overcome complaints and whether drivers in a market saturated with discount electric vehicles are willing to pay 12,000 yuan for a feature. than Huawei-backed rivals and A fragmented global electric vehicle market They are also racing to comply.
