> These chips still need to be physically made at TSMC, Intel, or Samsung.
That's for the most advance tech (sub 10nm and such). There is a lot of fab for chips that do not require the latest and greatest. If LLMs make it easier / more accessible to design ASIC, I think those fabs will be the one who will benefit the most.
TSMC also dominates older fab nodes.
Yes, there's definitely a demand now for much faster to iterate manufacturing. Even at the cost of quality