That's luckily not relevant here. Multiple sources have independently confirmed the same rumors. This means that there is a significant probability of it being true.
What exactly is "it"? What is being discussed here? The size of the model? Who cares? People will make the same API call to get the results. Everyone is acting like a glorified AI expert now smh
The rumor here is that GPT-4 isn't one giant model, but instead a "mixture of experts" combination of 8 smaller GPT-3 sized models with different training sets.
This has implications for what may be possible on consumer hardware.