Ruby inventor Matz working on native compiler with AI help

Tim Anderson· May 29, 2026 · 3:44 AM UTC ·3 min read · 0 reactions · 0 comments · 32 views

TL;DR · WeSearch summary

Yukihiro Matsumoto, known as Matz, is developing Spinel, a native compiler for Ruby, with assistance from Anthropic's Claude. Spinel converts Ruby code into C code, significantly improving execution speed compared to traditional Ruby implementations. However, it has limitations, supporting only a subset of Ruby features and requiring developers to adapt their code for compatibility.

Key facts

▪Spinel compiles Ruby code into C code, achieving approximately 11.6 times faster execution than MiniRuby.
▪The compiler is experimental and does not support many Ruby features, including eval statements and threads.
▪Matz presented Spinel at RubyKaigi 2026, highlighting its development with AI assistance over a few weeks.

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Original publisher	theregister
Canonical URL	https://www.theregister.com/devops/2026/05/06/ruby-inventor-matz-working-on-native-compiler-with-ai-help/5230532
Publication time	Fri, 29 May 2026 03:44:57 +0000
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Opening excerpt (first ~120 words) tap to expand

(function() { let windowUrl = window.location.href; windowUrl = windowUrl.substring(windowUrl.indexOf('?') + 1); let messageElement = document.querySelector('.shareableMessage'); if (windowUrl && windowUrl.includes('code') && windowUrl.includes('expires')) { messageElement.style.display = 'block'; } })(); DevOps Ruby inventor Matz working on native compiler with AI help Matz gets together with Anthropic's Claude to create an experimental ahead-of-time compiler for Ruby – though with many limitations Tim Anderson Tim Anderson Published wed 6 May 2026 // 14:49 UTC Yukihiro Matsumoto - better known as Matz - is building Spinel, a native compiler for Ruby, with help from Anthropic's Claude Code.Spinel, which is on GitHub under the MIT license, works by parsing Ruby code into AST (abstract…

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