What's your "When Language Model AI can do X, I'll be impressed"?

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I have two at the top of my mind: When it can read musical notes. I will be mildly impressed when I can paste in a picture of musical notes and with programming sets up instruments needed to play music, and then correctly plays the song it reads from the notes. My jaw will drop when finally with a simple prompt an AI can create a classic arcade style fully functioning and fun to play Pinball game. Each new version of models that become available I give that one a go. None have been even remot...