This reads more like an advertisement for Mythos, on the first glance
I guess maybe, but then do those documents lose value as technical documents? Not necessarily at all, so I don’t see the point. How are you supposed to describe a useful technical thing to users?
For context, the word "Mythos" appears 331 times in a 221 page document. "Opus 4.6" appears 240 times, so a reference to a model that nobody has really used happens more often than the reference to the last generation model.