Your model rankings are spot on. I’m hesitant to make the jump to top tier premium models as daily drivers, so I hang out with sonnet 4 and/or Gemini 2.5 pro for most of the day (max mode in Cursor). I don’t want to get used to premium quality coming that easy, for some reason. I completely align with the concise, thoughtful code being worth it though. I’m having to do that myself using tier 2 models. I still use o3 periodically for getting clarity of thought or troubleshooting gnarly bugs that Claude gets caught looping on.
How would you compare Cursor to Claude Code? I’m yet to try the latter.
I'm surprised there isn't a VibeIDE yet that is purpose build to make it possible for your grandmother to execute code output by an LLM.
The major LLM chat interfaces often have code execution built in, so there kind of is, it just doesn't look like what an SWE thinks of as an IDE.