This is kind of like Apple with the iPhone. You need 3 model products max. 3 is easily understood and people can be bothered (if they care) to track the difference. More than 3 is a mix of being redolent of ADHD (viz bad PR) while also being annoying for consumers to track the difference.
I can’t tell you the difference between the 10 different versions of the current iPhone and I can’t you the difference between the 5-6 different models put out by the Anthropics/OpenAIs of the world. At this point I just try to track the flagship and then the cheapest one or worst case I just use the flagship.
I’m sure internally there’s data showing people want choice and options but decision fatigue is of course very real.