I have the same exact experience. Working on one project, brainstorming. It was brilliant in July and August, like a seriously smarter, more experienced version of myself, reading in my mind, one step ahead of me, when pointed out a mistake it would remedy on the spot with the exact brilliant solution.

Now it's like talking to my hungover self, after 3 days bender, who just wanted to be left alone.

Same for me, especially the last couple of days. It was really frustrating and it felt like Claude was sick of working with me and just didn’t give a f*ck anymore

Same thing for me, but the day Fable got lobotomised Opus 5.5 started actually working pretty well for me.

I guess there are experimenting with they can enshittify. But even if they undo this current change, all commercials model will eventually be enshittified.

what does "enshittify" mean in this context?

Distilled as much as possible

Silently switch the model you are using to a worse one.