<?xml version="1.0" encoding="UTF-8"?>
<rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom"><channel><title>MirrorCode: AI can rebuild entire programs from behavior alone · HackerPapers discussions</title><link>https://hackerpaper.kaipfister.de/p/2606.30182/</link><description>Collected HN comments and submissions linking this paper.</description><language>en</language><lastBuildDate>Mon, 02 Nov 2026 11:16:22 GMT</lastBuildDate><atom:link href="https://hackerpaper.kaipfister.de/p/2606.30182/feed.xml" rel="self" type="application/rss+xml" /><item><title>MirrorCode: AI can rebuild entire programs from behavior alone — mentioned by tadamcz</title><link>https://news.ycombinator.com/item?id=49254706</link><guid isPermaLink="false">urn:hackerpapers:mention:2606.30182:49254706</guid><pubDate>Tue, 11 Aug 2026 07:51:07 GMT</pubDate><description>&lt;p&gt;We studied this question pretty systematically in the MirrorCode paper [1], comparing Python, C, Rust, Go, OCaml, and Ada across 19 very long-horizon tasks, for Claude Opus 4.7 and GPT-5.5. &amp;gt; In our results, there was little sign of inter-language differences in solve rates, for any model (Figure 5b). This suggests that AI models have learned generalized programming skills, rather than pattern-matching syntax. This does not mean that implementation language is irrelevant. Conditional on solving a target, we found a small effect on token usage: successful Python solutions tended to use fewer…&lt;/p&gt;&lt;p&gt;&lt;a href="https://hackerpaper.kaipfister.de/p/2606.30182/"&gt;Paper and discussion history&lt;/a&gt;. A mention is not an endorsement.&lt;/p&gt;</description><category>cs.AI</category></item></channel></rss>
