I have noticed this. I think it also applies to the popularity of the projects in general and the number of training examples it has seen.
I was testing Github copilot's new "Agent" feature last weekend and rapidly built a working app with Vue.js + Vite + InstantSearch + Typesense + Tailwind CSS + DaisyUI
Today I tried to build another app with Rust and Dioxus and it could barely get the dev environment to load, kept getting stuck on circular errors.
/model claude-fable-5
Or start claude code with:
claude --model claude-fable-5