Yes it likely is. I've had time to play around and see that so far it doesn't look any different (yet). I have a paid account, so apparently I'll be among the early folks getting all the things. Just not yet.

I definitely look forward to re-doing my Three Blind Mice test when it happens.

I noticed in their demo the 4o text still has glitches, but nowhere near to the extent the current Dall-e returns give you (the longer the text, the worse it gets). It's pretty important that eventually they get text right in the graphics.