It is strange seeing prose from these models becoming progressively less human over time. Even the code opus 5.5 generates is kind of digusting and extremely robotic in a way that no human would ever write.
I just assume the training data is AI generated hence why it's so uncanny valley. Even though platforms that provide data like mercor and micro1 are supposed to provide "organic" data that isn't output using LLMs I've heard some people I know on those platforms say they generate their work using ChatGPT.