BYD Unveils China's First 4nm Driving Chip and Expands God's Eye
BYD has built China’s first 4nm driving chip, and it’s putting LiDAR on a $10,000 car.
Latest Developments
May 28, 2026 - 6:42 pm
TL;DR:
BYD has unveiled the Xuanji A3, China’s first automotive-grade 4nm chip for self-driving cars. The company is expanding its God’s Eye driver-assistance system to mass-market models, as eight straight months of falling sales force a technology-led pivot.
Xuanji A3 Chip
BYD announced the Xuanji A3 at an event in its Shenzhen headquarters on May 28th. The chip delivers 700 TOPS per chip, with a cluster of three chips reaching 2,100 TOPS, enough to support Level 3 and Level 4 autonomous driving functions.
The chip is integrated into a new central computing platform that unifies the smart cockpit, driver-assistance system, and core electric propulsion.
The Xuanji A3 boasts low power consumption, drawing approximately 20% less energy than comparable semiconductors. It is currently in mass production.
God's Eye Goes Mass Market
Alongside the chip unveiling, BYD announced an expansion of its God’s Eye driver-assistance system to all models sold in China, including budget-friendly options like the Seagull compact hatchback starting at 69,800 yuan ($10,300).
The upgraded God’s Eye system offers features such as:
- City and highway navigation
- Traffic light recognition
- Automated parking
Available as an add-on for 12,000 yuan ($1,770), BYD is also providing one year of insurance that fully covers damages from accidents occurring while the system is active.
A Troubled Past
This move follows months of criticism regarding God’s Eye's performance. Initially deployed on a tiered structure last year, users reported:
- Dangerous malfunctions
- Unintended acceleration
- Erratic lane changes
- Steering inputs causing near misses with oncoming traffic