Types don't help AI, they actually hinder it. Proof: look at Ruby with Steep - a Ruby type checker - and without! Or Python vs Python with mypy. Token efficiency and expressiveness is way more important for AI generated code. That's why Ruby was the best language in this test!

Yusuke Endoh

@mametter · Twitter · 2026-03-05 01:10 UTC

I benchmarked which language works best with Claude Code. Ruby, Python, and JavaScript came out cheapest, fastest, and most stable! See my article in detail: https://dev.to/mame/which-programming-language-is-best-for-claude-code-508a