It’s dramatically easier to list the researchers or executives of any note who remain than the ones that have left.
This is like when John Romero did Ion Storm without Carmack. Maybe, maybe, GPT-5 is tracking as a viable family of training runs today, it certainly wasn’t 6 months ago when it was already badly late.
And even if it is: there won’t be another on the handful of world-class research staff they have left. Now you get Canvas and shit that even they don’t think will stick.
I don't want to overlook that they introduced Canvas today, but all parts have to work correctly for the system to work. It's not a fully cybernetic system yet.
Here's why. The models are all sort of variations on the transformer architecture. But what sets models apart is $$$ worth of hardware to train the bigger model, and $$$ to obtain better training data.
So I don't think it will hurt OpenAI as much as we think. The software is the easy part at this point I think.