Hesai Group,has announced that the AT128, its long-range automotive LiDAR, will be utilized in a L4 production-ready robotaxi jointly developed by Didi Autonomous Driving (the self-driving technology subsidiary of DiDi Global) and GAC Aion (a Chinese EV OEM and subsidiary of the GAC Group). The companies expect the robotaxi to enter mass production later this year, ahead of its initial deployment in 2026.
The new robotaxi model will be equipped with four Hesai AT128 LiDAR sensors that together play a key role in its 360° blind-spot-free perception system. With its 1200×128 resolution, the AT128 is able to capture 1.53 million points of data per second, offering detailed and reliable perception in complex and dynamic driving environments. Its long detection range of up to 200 meters, and 120° field of view enable early detection of obstacles, aims to enhance safety across urban and highway driving scenarios.
Including the four Hesai LiDAR units, GAC Aion and Didi Autonomous Driving’s robotaxi integrates a total of 33 sensors. The AV, at the same time, adopts a using a heterogeneous sensor fusion architecture to deliver real-time, 360° situational awareness. Within these operations, the AT128 sensors help enhance depth perception, and support the vehicle by safely navigating through complex traffic environments.
The L4 robotaxi production model more broadly represents the culmination of a multi-year strategic collaboration between Didi Autonomous Driving and GAC Aion. Through this partnership, it pairs GAC Aion’s globally adaptable safety redundancy platform for L4 autonomous driving with Didi’s upgraded hardware platform, multi-layered safety redundancy, and full-stack autonomous driving software.
