That's a pretty bold claim. What are humans but statistical models that generate based on pre-existing training -- and yet, are humans not with-meaning and with-originality?
Of course, human brains are some large order of magnitude more complex than the neural nets that underlie most AIs, but we can already see areas where these "simplistic" AIs outperform humans on specific tasks. So what prevents the arts from being one of those areas? If not now, in some not-too-distant future?