--- title: An open-weights Chinese model just beat Claude, GPT-5.5,... description: The AI Coding Contest Day 12 pitted 10 major language models against each other in a Word Gem Puzzle — a sliding-tile letter game on grids up to 30×30. Kimi... canonical: https://daily.dev/posts/an-open-weights-chinese-model-just-beat-claude-gpt-5-5-and-gemini-in-a-programming-challenge-9f0apj5zg twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: An open-weights Chinese model just beat Claude, GPT-5.5, and Gemini in a programming challenge | daily.dev og:description: The AI Coding Contest Day 12 pitted 10 major language models against each other in a Word Gem Puzzle — a sliding-tile letter game on grids up to 30×30. Kimi... og:url: https://daily.dev/posts/an-open-weights-chinese-model-just-beat-claude-gpt-5-5-and-gemini-in-a-programming-challenge-9f0apj5zg og:image: https://api.daily.dev/og/posts/9F0aPj5zg.png og:image:alt: An open-weights Chinese model just beat Claude, GPT-5.5, and Gemini in a programming challenge og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # An open-weights Chinese model just beat Claude, GPT-5.5, and Gemini in a programming challenge **[Hacker News](https://daily.dev/sources/hn)** · 7 min read · 1 upvotes · 0 comments ## Summary The AI Coding Contest Day 12 pitted 10 major language models against each other in a Word Gem Puzzle — a sliding-tile letter game on grids up to 30×30. Kimi K2.6, an open-weights model from Chinese startup Moonshot AI, won outright with 22 match points and a 7-1-0 record. Xiaomi's MiMo V2-Pro came second, while GPT-5.5, GLM 5.1, and Claude Opus 4.7 placed third through fifth. The contest revealed that models capable of active tile-sliding outperformed static word-scanners on larger boards. Notably, Muse scored −15,309 by claiming every short word despite heavy scoring penalties. The author argues this result reflects a narrowing capability gap between open-weights Chinese models and Western frontier labs, with Kimi K2.6 scoring 54 on the Artificial Analysis Intelligence Index versus GPT-5.5's 60 and Claude's 57. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [Claude, ChatGPT, and Gemini get all the hype, but the most interesting AI models are coming from elsewhere](https://daily.dev/posts/claude-chatgpt-and-gemini-get-all-the-hype-but-the-most-interesting-ai-models-are-coming-from-els-glbavr35d) · XDA Developers · 0 upvotes · 0 comments --- Tags: [#llm](https://daily.dev/tags/llm), [#ai-coding](https://daily.dev/tags/ai-coding) [View this post on daily.dev](https://daily.dev/posts/an-open-weights-chinese-model-just-beat-claude-gpt-5-5-and-gemini-in-a-programming-challenge-9f0apj5zg) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"An open-weights Chinese model just beat Claude, GPT-5.5, and Gemini in a programming challenge","url":"https://daily.dev/posts/an-open-weights-chinese-model-just-beat-claude-gpt-5-5-and-gemini-in-a-programming-challenge-9f0apj5zg","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/an-open-weights-chinese-model-just-beat-claude-gpt-5-5-and-gemini-in-a-programming-challenge-9f0apj5zg"},"datePublished":"2026-05-03T05:39:04.921Z","dateModified":"2026-05-03T05:39:30.606Z","description":"The AI Coding Contest Day 12 pitted 10 major language models against each other in a Word Gem Puzzle — a sliding-tile letter game on grids up to 30×30. Kimi...","image":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/1e1b186e5e2fbbfe5565de81df2c5eb4?_a=AQAEuop","thumbnailUrl":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/1e1b186e5e2fbbfe5565de81df2c5eb4?_a=AQAEuop","isAccessibleForFree":true,"articleSection":"Hacker News","inLanguage":"en","publisher":{"@type":"Organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180}},"author":{"@type":"Organization","name":"Hacker News","logo":"https://media.daily.dev/image/upload/t_logo,f_auto/v1/logos/hn","url":"https://daily.dev/sources/hn"},"commentCount":0,"discussionUrl":"https://daily.dev/posts/an-open-weights-chinese-model-just-beat-claude-gpt-5-5-and-gemini-in-a-programming-challenge-9f0apj5zg","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":1},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"keywords":"llm,ai-coding","timeRequired":"PT7M"} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"Hacker News","item":"https://daily.dev/sources/hn"},{"@type":"ListItem","position":3,"name":"An open-weights Chinese model just beat Claude, GPT-5.5, and Gemini in a programming challenge"}]} ```