Opus is supposed to be the expensive-but-quality one, while Sonnet is the cheaper one.
So if you don't want to pay the significant premium for Opus, it seems like you can just wait a few weeks till Sonnet catches up
Okay, thanks. Hard to keep all these names apart.
I'm even surprised people pay more money for some models than others.
Strangely enough, my first test with Sonnet 4.6 via the API for a relatively simple request was more expensive ($0.11) than my average request to Opus 4.6 (~$0.07), because it used way more tokens than what I would consider necessary for the prompt.