It has always gotten better, just like how self-driving cars have gotten better, and how the case for bitcoin is always getting stronger.
Many people have stopped believing this lie. Yes AI has gotten better by some metric which AI companies are pushing. It has not gotten good enough to be a qualified teacher, and it never will.
I have never claimed it to be good enough to replace a qualified educator, however for self learning it is a good tool with no hustle. You also consider how qualified some educators are...