True, but they all have the same underlying foundation. ChatGPT is just a big tech demo of what anyone could achieve. Granted, the training data is the hardest

True, but they all have the same underlying foundation. ChatGPT is just a big tech demo of what anyone could achieve. Granted, the training data is the hardest part. But, if you have a narrow domain and piles of existing data to work with, I don't see why you can't exceed the performance of these offerings for topics that actually matter to you.