Following up on the Haskell, OCaml, Python, ReScript, Ruby, Elixir, Java, Elm, and Rust benchmarks, I ran the same AoC 2025 Days 1–5 setup in Racket.
Racket is a Lisp dialect from the Scheme family. It's well-known in the programming
languages community and widely used in education (How to Design Programs, SICP variants),
but it's not a mainstream production language. Models need to handle S-expressions,
#lang racket conventions, and functional idioms with mutable state available but
discouraged. No scaffolding was provided — each model started from scratch.
The result: another clean sweep. Every model solved every part.