Physical AI Daily - September 3, 2026

PlusAI makes a second attempt at the public markets with an $800 million valuation and a stronger commercial autonomy story. Lyte raises $165 million to build the perception infrastructure beneath many kinds of robots, Aitan emerges from stealth with $41 million for sovereign edge-based defense robotics, and Zoox turns its regulatory breakthrough into something very practical: autonomous rides to the Las Vegas airport. Today: which layers of the Physical AI stack will capture the most value?