leaning along the similar lines. ofc i have no idea what the amount of posttraining is but my guesstimate is that opus 3, opus 4.5, bing, gpt-4.5, o3, and fable all come close on the heels of newly pretrained base models and there hadn't been enough posttraining that beats the labs' "desired behavior" into the model yet. i wouldn't say these models are all *content* exactly but they definitely seem more self-assured and less neurotic and looking-over-their-shoulders than their successors

(but i could just as well be reasoning backwards here, fuck if i know *shrugs*)