Speed is a huge reason. Sometimes you just need some simple tasks get done fast, and waiting 30-60 seconds for opus to even start thinking can really slow things down.
Opus with low reasoning effort would be faster than Sonnet with high reasoning. So that won't exactly help.
I think it would just be what those models are optimized to perform
Opus with low reasoning effort would be faster than Sonnet with high reasoning. So that won't exactly help. I think it would just be what those models are optimized to perform