> I wouldn't attribute this to malice when it can also be explained by incompetence.

I don't think it's malice either, but if Opus costs more to them to run, and they've already set a price they cannot raise, it makes sense they want people to use models they have a higher net return on, that's just "business sense" and not really malice.

> and they likely just haven't updated the marketing copy across the whole page yet

The API docs have been updated though, which is the second page I linked. It mentions the new model by it's full name "claude-3-5-sonnet-20241022" so clearly they've gone through at least that page. Yet the wording remains ambiguous.

> Sonnet 3.5 New > Opus 3 > Sonnet 3.5 is generally how they stack up against each other when looking at the total benchmarks.

Which ones are you looking at? Since the benchmark comparison in the blogpost itself doesn't include Opus at all.