Its impossible to look at these objectively when you know they are fake but they are not all equally believable. As with all of these technologies they are impressive but not so good you can't tell. If you are just causally watching then yeah they are all totally passable. The dog one is probably the most obvious to spot as fake.

All of that said these tools are getting better and better and just as we have seen in the past humans will get better and better and spotting fakes. Not boomers but younger people. There is a certain un-realness to all of the videos but the gap is getting smaller and smaller. Gonna be interesting.

One last thing. I don't trust OpenAI. These could be the best it can do for now. In practice it might be a lot easier to spot fakes.