{"rewrite":{"id":"r_908a4441138ef2bd1b2d06f2","clusterId":"c_915634cfb56b7926938e98be","slug":"llm-assbench-tests-ai-shape-understanding-with-3dcg-buttocks","model":"deepseek-v4-1-flash","headline":"LLM AssBench Tests AI Shape Understanding With 3DCG Buttocks","summary":"A benchmark called LLM AssBench gives multiple AIs the same instruction to create a realistic, manipulable 3D model of the human buttocks in a single HTML file, then compares the results. The developer, Luigi, released it in September 2026. The site lets visitors line up up to four results to compare, and 42 generation results, including past versions, are registered.","whyItMatters":"AssBench puts a shape-and-physics task in front of AI models because widely known math and coding problems can already sit in training data, and it adds a planned 40-point scoring system for realism, manipulability, movement, and stability.","webCardHtml":"\u003cp\u003eThe instruction asks for more than a shape. The model must render the body from waist to thighs with Three.js, use no external images or 3D models, and reproduce skin texture. It also has to make the result rotate when dragged and jiggle softly when clicked.\u003c/p\u003e\u003cp\u003eResults from Anthropic\u0026#39;s Claude, OpenAI\u0026#39;s GPT, and Google\u0026#39;s Gemini are posted on the site. Luigi notes that small AIs can sometimes produce 3DCG close in quality to large ones, and says the evaluation results should make it easier to pick a cheaper AI that still delivers good output.\u003c/p\u003e","blueskyPost":"LLM AssBench asks AIs to build a manipulable 3D model of the buttocks in one HTML file. Shape and rigging under one prompt is where generators diverge, and Luigi's 42 logged results let visitors line them up side by side.","twitterPost":"LLM AssBench puts shape and rigging into one HTML file prompt. That single constraint is where AI generators split, and Luigi logged 42 results to compare.","threadsPost":"LLM AssBench gives each AI one prompt: a realistic, manipulable 3D model of the buttocks in a single HTML file. Geometry and rigging in one file is the constraint that separates generators, and Luigi's 42 logged results, past versions included, can be lined up four at a time.","newsletterBlurb":"LLM AssBench is a benchmark that sets multiple AIs the same task: build a realistic, manipulable 3D model of the human buttocks in a single HTML file with Three.js. Results from Claude, GPT, and Gemini are posted, and 42 generation results are registered. Developer Luigi plans a 40-point evaluation of realism, manipulability, physical movement, and stability.","attributionJson":"[{\"source\":\"GIGAZINE\",\"url\":\"https://gigazine.net/news/20261109-llm-assbench/\",\"title\":\"Benchmark \\\"LLM AssBench\\\" Lets AIs Create 3DCG Butts and Compares Their Performance\"}]","lintFlagsJson":null,"lintHits":0,"costUsd":0,"inputTokens":5544,"outputTokens":704,"status":"published","repairAttempts":0,"nextRepairAt":null,"factsAttemptedAt":1794221324,"createdAt":"2026-11-09T10:44:43.000Z","publishedAt":"2026-11-09T10:47:29.000Z","updatedAt":"2026-11-09T10:47:29.000Z"},"cluster":{"id":"c_915634cfb56b7926938e98be","canonicalTitle":"AIに「3DCGのおしり」を作らせて性能を比較するベンチマーク「LLM AssBench」が登場","representativeArticleId":"a_a14e56020d2b175c0270dbbb","sourceCount":1,"writtenSourceCount":1,"writeAttempts":0,"isSolo":true,"entitiesJson":"{\"anime_titles\":[],\"manga_titles\":[],\"work_titles\":[\"LLM AssBench\"],\"studios\":[],\"people\":[],\"type\":\"news\",\"domain\":\"other\",\"is_roundup\":false}","contentType":"news","status":"published","firstSeenAt":"2026-11-09T10:00:00.000Z","lastSeenAt":"2026-11-09T10:00:00.000Z","updatedAt":"2026-11-09T10:47:26.000Z"},"attribution":[{"source":"GIGAZINE","url":"https://gigazine.net/news/20261109-llm-assbench/","title":"AIに「3DCGのおしり」を作らせて性能を比較するベンチマーク「LLM AssBench」が登場"}],"entities":{"anime_titles":[],"manga_titles":[],"work_titles":["LLM AssBench"],"studios":[],"people":[],"type":"news","domain":"other","is_roundup":false},"keyFacts":["Developer Luigi released LLM AssBench in September 2026.","AIs are told to create a realistic, manipulable 3D model of the human buttocks in a single HTML file.","The 3DCG must be rendered with the JavaScript library Three.js without external images or 3D models.","Results from Anthropic's Claude, OpenAI's GPT, and Google's Gemini are posted on the site.","42 generation results, including past versions, are registered on the site."],"pageLinks":{"healthSlugs":["llm-assbench"],"storySlugs":[],"entities":[{"slug":"llm-assbench","supported":0,"disputed":0,"contradicted":0,"unverified":2,"overall":"unverified","story_count":1,"has_dossier":false}],"stories":[],"entitiesOk":true,"storiesOk":true}}