Only providing the Pro mode in Pixel Camera on the Pro devices is one of the only ways they're artificially segmenting them via software. The AI model differences are largely based on real differences in available memory and that doesn't have much impact on available OS features. That matters to LLM enthusiasts but probably isn't a selling point for most people at this point.
The base devices are better value but the Pro devices do mainly differentiate based on hardware. Better display, addition of the 5x telephoto camera, better front camera and more memory are the main selling points. Pixel 9a is similarly a downgrade for the screen, cameras, memory, wireless charging speed and cellular radio (back to a variant of the 7th/8th gen Pixel radio). Pixel 9a has very good value but the cellular radio downgrade is a big one which people may care about more than they realize due to how it impacts battery life when using 5G.
The base devices are better value but the Pro devices do mainly differentiate based on hardware. Better display, addition of the 5x telephoto camera, better front camera and more memory are the main selling points. Pixel 9a is similarly a downgrade for the screen, cameras, memory, wireless charging speed and cellular radio (back to a variant of the 7th/8th gen Pixel radio). Pixel 9a has very good value but the cellular radio downgrade is a big one which people may care about more than they realize due to how it impacts battery life when using 5G.