Opus 5 and 5.6 Sol are definitely not smart enough to do my job. They require constant supervision. So why would I want to switch to even worse model? Even if it's just slightly worse?

>So why would I want to switch to even worse model?

There would be no reason to if you are in the privileged position where cost isn't an issue.

For the rest of us something that's 95% as good for 20% the price is a hell of a value proposition.

That's why every benchmark should show the Pareto frontier against cost and latency.