This is not an argument that one of these is better. It is an argument that they are answering different questions, and that most people who use both have worked that out already.
Where ChatGPT wins, plainly
Breadth of knowledge, long documents, code, research, and running on every device you own rather than only an iPhone. If the job is thinking or writing, that is the tool, and it is not close.
What it does not have
A place for your life. With Memory switched on it remembers things you tell it, and on paid plans it can read your Google Calendar. But there is no habit streak in it, no meal plan, no record of money in and out, and no cast. So when you say you are exhausted, it has less of your week to go on.
What Vera does with the same sentence
It already knows you have slept badly most of the week, skipped a couple of sessions and had a launch on Thursday. The reply is about you rather than about tiredness, and that difference is the entire product.
Most people use both
One for thinking, one for the week. That is a perfectly sensible answer and there is no need to pick.
Have a look at the thing itself.
A cast of characters sharing one memory of your week. Free to download, and free to keep using.
Download on theApp Store