(You can't compare parameter count with a mixture of experts model, which is what the 1.8T rumor says that GPT-4 is.)
You absolutely can since it has a size advantage either way. MoE means the expert model performs better BECAUSE of the overall model size.
Yeah, almost like comparing a 70b model with a 1.8 trillion parameter model doesn't make any sense when you have a 400b model pending release.