Anyone finding that Claude rushes through thinking this week/something is off?

I don't know if it's just me but it feels like the baseline thinking threshold for the models has been dialled right down. This week from about Sunday my productivity has tanked. It's like I'm babysitting a 12 year old.

I know, I know, every time I read these posts I scoff too "it's a skill issue". I'm pretty skilled at prompting. This feels different but the lack of outrage on Reddit makes me wonder maybe I am doing something differently all of the sudden.

However up until now I only used ultrathink only on my main planning prompt. The default worked out of the box provided clear instructions. But this week has been terrible.

This afternoon I start to drop THINK or THINK HARD or ULTRATHINK to almost every prompt. Instant night and day difference.

Am I the only one? Last week on Wed Thu when I took Opus 4.5 for a spin o felt like I had a superpower. This week total opposite until I started invoking THINK