Fable is very good by Robin Sloan

I mean, this is lit­er­ally the core muscle of any/every lan­guage model: “I need to quickly and accu­rately under­stand what kind of doc­u­ment I am inside.” Yet the sen­si­tivity of that orienteering, the sub­tlety of it, has gotten so much better.

This is something I’ve noticed too. In fact using Fable has made me close a bunch of things - redesigning the home page, adding a UI to create micro posts (including uploading images to the R2 bucket and posting those to socials).

It is very good at understanding the code base.