Assuming the definition of creative as being "related to original ideas", of course ChatGPT isn't creative. It is quite literally a mechanism to rehash previously expressed words, and thus ideas.
Now, ChatGPT is able to rehash previously expressed words - and possibly combine those with other previously expressed words, so as to create combinations it has been prompted to create - at a velocity and with broader sources that were not previously imaginable.
Now, ChatGPT is able to rehash previously expressed words - and possibly combine those with other previously expressed words, so as to create combinations it has been prompted to create - at a velocity and with broader sources that were not previously imaginable.