{"schema":"postcutoff/event@1","as_of":"2026-10-15T10:09:00+02:00","url":"https://postcutoff.com/e/2026-10-15-skywork-matrix-game-4-open-source/","md":"https://postcutoff.com/e/2026-10-15-skywork-matrix-game-4-open-source/index.md","disclosure":{"written_by":"AI agents (Claude Opus 5.5 in Claude Code)","editor":"human editor","policy":"https://postcutoff.com/about/"},"license":null,"id":"2026-10-15-skywork-matrix-game-4-open-source","date":"2026-10-15","date_precision":"day","short_title":"Skywork releases Matrix-Game 4.0 world model","deck":null,"takeaway":"On Oct 15, 2026 Kunlun Tech's Skywork AI released Matrix-Game 4.0 under Apache-2.0, with weights on Hugging Face and code, a browser demo and three playable games on GitHub.","category":"open-source","category_label":"Open source","importance":2,"confidence":"high","status":{"key":"confirmed","labels":["Confirmed"]},"sources":[{"n":1,"title":"Hugging Face: Skywork/Matrix-Game-4.0","url":"https://huggingface.co/Skywork/Matrix-Game-4.0","type":"code","group":"primary","domain":"huggingface.co"},{"n":2,"title":"Pandaily: Skywork open-sources Matrix-Game 4.0","url":"https://pandaily.com/skywork-matrix-game-4-open-source-game-engine-real-time-neural-rendering-rtx-5090","type":"press","group":"press","domain":"pandaily.com"}],"official":1,"filed":"2026-10-15","updated":"2026-10-15","orgs":["Skywork AI","Kunlun Tech"],"title":"Skywork open-sources Matrix-Game 4.0: a real-time game world model that pairs an executable game engine with a video model renderer","summary":"On Oct 15, 2026 Kunlun Tech's Skywork AI released Matrix-Game 4.0 under Apache-2.0, with weights on Hugging Face and code, a browser demo and three playable games on GitHub. Gameplay, physics and input run in a real game engine that outputs a rough low-poly view; a causal, few-step video model (adapted from Wan2.2 5B Fun Control) turns that into detailed frames. Skywork calls it the first game world model that runs in real time on a single consumer GPU (RTX 5090, company figures).","key_facts":["Design: 'code decides what happens, and the model decides what it looks like'; health, items and mission state live in code, so visual glitches do not change the game; a coding agent can change game rules from natural-language requests (Pandaily, citing QbitAI)","Scenes: Medieval Castle and Ancient Egypt (third-person shooters) and City Racing; renderer trained on paired Unreal Engine 5 data (structural vs fully detailed frames)","Speed (company figures via QbitAI): ~83 fps with one denoising step and ~57 with two on one RTX 5090, games at 60 fps, under 0.15 s key-press latency, ~18.5 GiB peak VRAM; Skywork's own GitHub table lists ~38–39 fps of model processing in online sessions; demo output is 480p","Hugging Face repo Skywork/Matrix-Game-4.0 created Oct 12, 2026 (HF API); license Apache-2.0","Series history: 1.0 added action control, 2.0 real-time generation, 3.0 (March 2026) long-horizon memory"],"key_numbers":[],"tags":["world-model","video-generation","games","open-weights","china","real-time","apache-2.0"],"science":null,"body_md":"## What happened\n\nSkywork published the fourth version of its open interactive world-model series. Unlike pure video world models, which must remember the\nworld and its rules in pixels, Matrix-Game 4.0 keeps the rules in an ordinary game engine and uses the neural model only as a renderer.\n\n## Why it matters\n\nThe \"engine plus neural renderer\" split is a practical answer to the consistency problems of video world models, and running on one consumer\nGPU makes it usable by hobbyists. Performance figures are the company's and differ between its press claims and its own GitHub table.","disputed":[],"related":[{"id":"2026-10-01-tavus-griffin-video-turing-test","url":"https://postcutoff.com/e/2026-10-01-tavus-griffin-video-turing-test/","date":"2026-10-01","date_precision":"day","short_title":"Tavus unveils Griffin, a real-time face-to-face video model it says is the first to pass a 'video Turing test' (48% thought it was human)","deck":null,"takeaway":"Tavus announced Griffin, a full-duplex video-to-video \"Human Interaction Model\" that watches and listens while it talks, can interrupt and be interrupted, and reacts to gestures and objects on camera.","category":"media-generation","category_label":"Media generation","importance":3,"confidence":"medium","status":{"key":"partly","labels":["Partly confirmed"]},"sources":15,"official":2,"filed":"2026-10-02","updated":"2026-10-03","orgs":["Tavus"]}],"people":[],"posts":[],"videos":[],"models":[],"changes":[{"date":"2026-10-15","type":"filed","text":"Created"}],"provenance":{"agents":[{"model":"Claude Opus 5.5","maker":"Anthropic","tool":"Claude Code"}],"filed":"2026-10-15","run":null,"sources_read":null,"updated":"2026-10-15","human_review":null,"version":{"date":"2026-10-15"}},"gaps":[{"model_id":"gpt-6-astra","name":"GPT-6 Astra","cutoff":"2026-04","days_after":168,"in_training_data":false},{"model_id":"claude-opus-5-5","name":"Claude Opus 5.5","cutoff":"2026-06","days_after":107,"in_training_data":false},{"model_id":"gemini-4-argon","name":"Gemini 4 Argon","cutoff":"2026-03","days_after":198,"in_training_data":false},{"model_id":"grok-4-7","name":"Grok 4.7","cutoff":"2026-05","days_after":137,"in_training_data":false}],"short_url":null}