@Leo Wandersleb If you are using premium then it forces sonnet or opus for everything. So when you do 5+5 is going to use sonnet/opus. Additionally. I think it uses the entire context, not just your most recent prompt. So if your previous sections of that same chat session had more complex stuff, then it is going to use Opus and not Sonnet. That's why your seeing pure Opus.

I think the main issue could be that you are keeping a chat session open instead of switching to new ones with new tasks and questions. Lmk if that might be the case or not.