Also from a press release 5 months ago:
https://blog.google/products/pixel/google-pixel-8-pro/
> Meet Pixel 8 and Pixel 8 Pro, engineered by Google and built with AI at the center for a more helpful and personal experience. These phones are packed with first-of-their-kind features, all powered by Google Tensor G3.
Obviously the answer is "Google wants to differentiate these phone price structures with features" to make the Pro more appealing, but they use the same "AI" hardware, and it's not because they never marketed AI on the base Pixel 8...
Yet they literally said this time around
> "[Gemini] Nano will not be coming to the Pixel 8 because of some hardware limitations."
Some of us just want a clearer explanation of what the hardware limitations are, and they they don't show up in the spec comparisons between Pixel 8 and 8 Pro.