And it sounds like you have the same surreal experience as me...it's so blindingly. obvious. that the only odd thing is people not mentioning it.
And the tells are so tough, like, I wanted to a bang a drum over and over again 6 weeks ago about the "It's not X-it's Y" thing, I thought it was a GPT-4.1 tell.
Then I found this under-publicized gent doing God's work: ton of benchmarks, one of them being "Not X, but Y" slop and it turned out there was 40+ models ahead of it, including Gemini (expected, crap machine IMHO), and Claude, and I never would have guessed the Claudes. https://x.com/sam_paech/status/1950343925270794323