15 LLMs Improved in One Afternoon — Only the Harness Changed | #hnpulse #ai #hackernews #technews

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Topic: Improving 15 LLMs at Coding in One Afternoon. Only the Harness Changed
832 points · 295 comments

Without changing any model, the author improved 15 LLMs' coding performance by 5-14% just by redesigning the edit tool interface. The proposed Hashline approach gave Grok Code Fast 1 a 10x improvement.

📌 Source: http://blog.can.ac/2026/02/12/the-harness-problem/
📌 HN Thread: https://news.ycombinator.com/item?id=46988596
📌 Hacker News: https://news.ycombinator.com

#HackerNews #HNPulse #AI #LLM #CodingAgent #Harness #Hashline #ClaudeCode #Developer #TechNews #Shorts

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HackerNews,HNPulse,AI,LLM,CodingAgent,Harness,Hashline,ClaudeCode,Developer,TechNews,Shorts

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