The Beijing-based company has been backed by a list of prominent investors, and is among several players to test autonomous vehicle systems for hauling freight at domestic harbors.
The deployment of autonomous vehicles on a familiar ride-hailing app might help Pony.ai get closer to making money from its pilot projects.
The partnership is the latest example of driverless tech firms rushing to work with more consumer-facing companies.
Xpeng Motors led a investment in Zvision Technologies, a Chinese startup that makes lidar sensors for self-driving cars.
L9 will be the second production model from Li Auto and the Chinese EV maker appears to be confident that it becoming a hit.