It's 1) Not mythos class 2) restricted to "security partners"
They at least claim that it is greater than Mythos class[0]
[0] https://news.ycombinator.com/item?id=48642254
They show one security benchmark where its above Mythos.
That doesn't mean it matches Mythos ability to write functional exploits.
Maybe it is, maybe it's not. They don't tell.