Yeah, I think this early era where every AI one interacts with is a clone of 4-6 big systems will seem quite quaint.

Yeah agreed. Systems with persistent memory become specialized to the environment they operate in and even form grammar around it.

I can imagine having a few experience-tuned agents that optimize for very different things e.g. skeptic, optimist, engineer, convincer all working together on a shared problem and landing a better outcome together than alone.