Should I change model between prompts?

I have a long project, which switches between tough coding and dumb questions (that still need the session context) a lot. I’ve just been doing it all on Opus - but should I be changing to sonnet for the dumb questions? I’m not sure if this would be more or less token efficient (I fear breaking some caching magic if I’m switching all the time) submitted by /u/Opening-Lab-9657 [link] [comments]