https://arstechnica.com/gadgets/2024/03/googles-pixel-9-might-have-three-models-adding-a-small-pro-phone/

When renders of the Pixel 9 came out in January from OnLeaks, we got our first hints that a big change in Google's lineup was afoot. Usually, the company does a big "Pro" phone with three cameras and all the premium features and then a smaller Pixel that gets cut down somewhat, usually with only two cameras. Those January renders showed a big and small phone both with three cameras, indicating the base model Pixel 9 was getting updated to be a "mini-Pro" model—a smaller phone, but still with all the trimmings. The small Pro model still seems to be in the works, but apparently, that's not the base model.