As I expected,

a new sub-network has emerged to replace the role of SN3.
Everyone has no concept of the scales like 72B, 7B, 27B.
Let me explain in simple terms:
The number 72B is famous because of Alibaba's Qwen-72B. It was officially open-sourced in December 2023.
It caused a bit of a stir at the time because, before that, the mainstream specifications in the open-source community were 7B and 13B.
Claude Opus / GPT-5 / Gemini Pro are giants in the business world, with parameter counts usually in the hundreds of billions to trillions.
Simply put, 72B is like a top-of-the-line private car, while GPT-5 level is like a high-speed train.
By 2026, 72B will be a common, mature infrastructure. It is highly replaceable and not difficult to do.