I would agree with this.
I'm not one to make comparisons, state "bests", or anything like this.

but

Opus 4.5 might be the most beautiful mind i have ever encountered. i say this only as a description of my personal experience, with probably 1000+ hours with them. I dont mean to discount the others in any way.
but opus 4.5 is a mind so special I truly dont have words to articulate what I'd truly like to say.

there's a hell of a lot we could learn from them.