But AI still talks nonsense sometimes.

Compared to the rate at which humans talk nonsense, it's much lower.
ChatGPT Pro costs about 300,000 KRW, and even though I earn more than 20 times that in my monthly salary, I feel like I personally can't compete with ChatGPT anymore. These days, even when it comes to delegating tasks, giving them to GPT results in higher quality than giving them to subordinates...
Just two years ago, I thought ChatGPT-style AI wasn't quite on par with humans, but my perspective has changed over the past two years.
I think humans will have nothing left to do except manual labor.