I suspect that sustained reading of Opus 5's unconscionably bad prose could actually cause psychological harm. We're strongly considering moving all of our Anthropic spend to Codex/open weight models. It's a mental health decision at this point.
Personally, I had to go back to Opus 4.6 after I felt what I thought were some early onset signs of psychosis.
It seems ridiculous to type, that a model could have this effect on my mental health, but my quality of life and enjoyment of work has improved drastically since I stopped subjecting myself to reading this style of output 8 hours a day.
not that crazy. Opus 5 is like working with an insufferable, arrogant colleague that speaks another language. It's mentally draining dealing with someone like that for 8 hours a day. I'm back on 4.8, and it feels like working with a friendly colleague again.
Life's too short to work with Opus 5 every day :-)
I'm on my last straw with them. I've been around for a year now and for many months i've just stuck with Claude because it was plenty good and i didn't care to provider-hop to constantly compare. Previously though my UX wasn't actually affected that much, despite growing complaints/etc, generally everything was fine for me.
Opus/Fable output these days though is... not enjoyable. It's just really bad. The code quality is fine, but i want information from claude and it's just awful to read.
My biggest problem honestly is that i can't move my day job.. we're using enterprise claude and i'm not sure how much effort it would be to get access to another provider. I should inquire though, claude is really frustrating these days.
I switched to GPT 5.6 Sol yesterday and it has been a joy going through and fixing up the Claude cruft. And being able to read everything the model says. A breath of fresh air for sure!