As reported by Electrek, on December 11 (local time), Rivian held its first-ever AI and Autonomous Driving Day in Palo Alto, California. During this event, the company officially introduced its in-house chip, dubbed the "Rivian Autonomy Processor 1" (RAP1), along with its third-generation autonomous driving computing platform, ACM3. The RAP1 chip, crafted using a cutting-edge 5-nanometer process, boasts a computing prowess of 1600 sparse INT8 TOPS. It's capable of processing a staggering 5 billion pixels per second, delivering roughly four times the performance of the previously utilized NVIDIA Orin chip. This chip will be manufactured by TSMC and features Rivian's self-engineered low-latency interconnection system, "RivLink," which facilitates seamless multi-chip collaborative operation. The RAP1 will be at the heart of the third-generation autonomous driving computer, ACM3, powering advanced autonomous driving algorithms. In a parallel announcement, Rivian also introduced its intelligent assistant, the "Rivian Assistant." This assistant is built upon a multimodal large model and is slated for launch in early 2026. Alongside it, Rivian unveiled a subscription service called Autonomy+, which will enable hands-free driving on over 3.5 million miles of roads across the U.S. and Canada. Moreover, Rivian revealed that its forthcoming R2 model will be the pioneer in incorporating LiDAR sensors. These sensors will bolster multimodal perception capabilities, with the ultimate aim of achieving L4-level autonomous driving.