{"rewrite":{"id":"r_fdd8d10c14dc39cc4eee2e63","clusterId":"c_f421d11eaa26f7817e368540","slug":"minecraft-mod-drives-a-fly-with-a-real-166-700-neuron-connectome","model":"deepseek-v4-flash","headline":"Minecraft Mod Drives a Fly with a Real 166,700-Neuron Connectome","summary":"Developer Evan Smith announced NeuroCraft Fly on September 5, a Minecraft project that uses the neural activity of a model built from 166,700 neurons to move a fly in the game. The demo responds to six inputs: player approach, nearby mobs, brushing, attacks, food, and light. It does not reproduce natural physiology or behavior; it selects prepared actions based on readout signals chosen by a person. The underlying MaleCNS v1.0 dataset was built by HHMI Janelia and Google Research.","whyItMatters":"The mod puts a real biological connectome, the MaleCNS v1.0 fruit fly map Google and Janelia released, inside Minecraft, letting players watch a 166,700-neuron model drive in-game behavior, even if that behavior is a curated action set rather than a natural simulation.","webCardHtml":"\u003cp\u003eGoogle announced on September 3 that it used AI to reconstruct millions of 2D images into 3D neural shapes, mapping every neural connection in a male adult fly\u0026#39;s brain and central nervous system for the first time. That dataset, MaleCNS v1.0, is the foundation of NeuroCraft Fly.\u003c/p\u003e\u003cp\u003eSmith said on X that he used GPT-6 Astra to help with development. The current GitHub repository holds an introduction, a demo video, and development plans; the MOD and source code are not public yet. Smith plans to release a Fabric mod in the future.\u003c/p\u003e","blueskyPost":"A Minecraft mod called NeuroCraft Fly uses the neural activity of a 166,700-neuron model to move a fly in the game. It responds to six inputs, from player approach to light. The dataset behind it, MaleCNS v1.0, is the fruit fly connectome map Google and Janelia built.","twitterPost":"A Minecraft mod called NeuroCraft Fly uses a 166,700-neuron model's neural activity to move a fly in the game. It responds to six inputs, from player approach to light. The dataset, MaleCNS v1.0, is the fruit fly connectome map Google and Janelia built.","threadsPost":null,"newsletterBlurb":"Developer Evan Smith announced NeuroCraft Fly, a Minecraft project that uses the neural activity of a 166,700-neuron model to move a fly in the game. The demo responds to six inputs, from player approach to light, and selects prepared actions rather than simulating natural behavior. The dataset behind it, MaleCNS v1.0, is the fruit fly connectome map Google and Janelia built.","attributionJson":"[{\"source\":\"ASCII.jp\",\"url\":\"https://ascii.jp/elem/000/004/432/4432971/?rss\",\"title\":\"マイクラのハエに\\\"本物の脳\\\"を再現　16万6700ニューロンの神経接続図で動く「NeuroCraft Fly」\"}]","lintFlagsJson":null,"lintHits":0,"costUsd":0,"inputTokens":6115,"outputTokens":2390,"status":"published","repairAttempts":0,"nextRepairAt":null,"factsAttemptedAt":1788842676,"createdAt":"2026-09-08T04:40:18.000Z","publishedAt":"2026-09-08T04:43:21.000Z","updatedAt":"2026-09-08T04:43:21.000Z"},"cluster":{"id":"c_f421d11eaa26f7817e368540","canonicalTitle":"マイクラのハエに“本物の脳”を再現　16万6700ニューロンの神経接続図で動く「NeuroCraft Fly」","representativeArticleId":"a_640e2321d7f365d686dad8f2","sourceCount":1,"writtenSourceCount":1,"writeAttempts":0,"isSolo":true,"entitiesJson":"{\"anime_titles\":[],\"manga_titles\":[],\"work_titles\":[\"NeuroCraft Fly\"],\"studios\":[],\"people\":[],\"type\":\"release\",\"domain\":\"games\",\"is_roundup\":false}","contentType":"news","status":"published","firstSeenAt":"2026-09-08T03:50:00.000Z","lastSeenAt":"2026-09-08T03:50:00.000Z","updatedAt":"2026-09-08T04:43:20.000Z"},"attribution":[{"source":"ASCII.jp","url":"https://ascii.jp/elem/000/004/432/4432971/?rss","title":"マイクラのハエに“本物の脳”を再現　16万6700ニューロンの神経接続図で動く「NeuroCraft Fly」"}],"entities":{"anime_titles":[],"manga_titles":[],"work_titles":["NeuroCraft Fly"],"studios":[],"people":[],"type":"release","domain":"games","is_roundup":false},"keyFacts":null}