They were asking for regulation. They were not asking to be singled out and prevented from releasing newer models while everybody else keeps going as usual.
Based on the reasoning for blocking Fable, every current model should be blocked. GPT 5.5 is similarly strong and has fewer guardrails, for example.
I don't know. I have heard from reliable source - aka the CEO of antrhopic that Mythos is in league of its own. And that the rest are grossly inferior. Anthropic can't have it both ways. If they are special - only them should fall under regulations. If they are not - why have you committed fraud in the last couple of months right before your IPO saying otherwise.
I've heard others call it a marketing ploy that AI companies keep coming back to-- the idea that "it's soooo dangerous, we have to be careful".