alt Hacker NewsNot necessarily. GPT-4.5 was a new pretrain on top of a sizeable raw model scale bump, and only got 0.5 - because the gains from reasoning training in o-series overshadowed GPT-4.5's natural advantage over GPT-4.
OpenAI might have learned not to overhype. They already shipped GPT-5 - which was only an incremental upgrade over o3, and was received poorly, with this being a part of the reason why.
I jumped straight from 4o (free user) into GPT-5 (paid user).
It was a generational leap if there ever has been one. Much bigger than 3.5 to 4.