> A model is a “frontier model” if it offers the highest degree of intelligence at a given cost or size.
I would define a "frontier model" as offering the highest degree of intelligence at any cost, or without regard to cost. The frontier today is clearly Fable/Mythos, with the "efficient frontier" at Opus/Sol.
Your partial quote is quite misleading. The article obviously talks about "efficient frontier", not "intelligent frontier".
>In the AI industry, we borrowed the term “efficient frontier” from economists. We use it to talk about managing tradeoffs, most often the tradeoff between cost and capabilities for models. A model is a “frontier model” if it offers the highest degree of intelligence at a given cost or size.