Ask HN: Can you show me some useful AI-written programs?

Looking at the software I use day to day, none of it is majority AI/LLM-written. I'm not actively going out of my way to avoid AI programs, but I haven't found any useful ones.

When I say "useful software" I'm particularly interested in something that my grandmother would recognize as software - an OS, IDE, DAW, DBMS, word processor, a 3D modeller, game engine, video editor, CAD software, spreadsheet application, compiler, browser, etc. I'm marginally less interested in colorful cat/ls rewrites.

Given that in the last 2 years there's probably been more lines of code produced than the 2 decades prior, undoubtedly a lot more software has flown under my radar than usual.

Are there some useful AI-written programs I can look at? Bonus points if they do something novel that I can't already do with a computer.