In my case it was commits, not lines of code. I wasn't chasing after it, I just asked Claude to calculate some statistics after a month or so of AI usage.

It's not just statistics either. I know for a fact that I made major progress by using LLMs. Here's a summary from around a month ago:

https://news.ycombinator.com/item?id=48407642

AI is world changing technology as far as I'm concerned.