AI was here in the 1970's too for that matter, in the form of expert systems. "AI" is the label that perennially gets applied to whatever current technology does something that was previously considered similar to human intelligence, then later on gets removed and applied to something new.

You'll know were making progress towards AGI when LLMs start being called LLMs again, and something new starts being called AI.

"AI" is a marketing buzzword. Real AI doesn't exist.

A thing that people have chosen to call AI is here today.