Many people were hoping that Sonnet 4.6 was "Opus 4.5 quality but with Sonnet speed/cost" but unfortunately that didn't pan out.

You can already see people here saying the same stuff about opus 4.7, saw a comment claiming that Opus 4.7 on low thinking was better than 4.6 on high.

I'm not seeing that in my testing, but these opinions are all vibe based anyway.