So is this the end? Are we at that point in time where ordinary people are not allowed to use more advanced models? If so this happened sooner than expected. After that point only priveleged few will access and make use of more advanced AI. Public’s access will be restricted, limited and controlled. This will only add to the power asymmetry.
I do think it's the end of unlimited access, but I'm not terribly worried about power asymmetry as such, at least not unless they hit superintelligence and none of this matters. It's not as though Big Chemistry is oppressing us all because they can order industrial acids we can't. There are strong profit motives for model providers to ensure the advanced stuff is meaningfully available, and strong political motives for them not to be perceived as picking individual winners and losers.