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Local Clip Studio

Built at Meta Global AI Developer Hackathon · Oct 26, 2026 · Remote

Local Clip Studio — Demo video

I stream games in Thailand. One stream runs four hours and 77 GB, and finding thirty good seconds meant watching all of it again. Editing took longer than playing, so I built Local Clip Studio: you type what you want, and an AI agent does the cutting. It runs on your own computer, and you choose the brain: Meta's open-weight Muse Glimmer on your own graphics card, or Muse Spark in the cloud. First it maps the whole video in about two minutes. It reads how loud every second is and how much the picture changes at each keyframe, then looks closely only where something happens. Step by step it cuts, adds captions and checks the finished file. When a check fails it fixes the call itself, and it explains why at every step. Behind it is a team of Meta models. Muse Voice Transcribe hears the speech, Muse Wonder watches with sound to find the laughs, SAM 3.1 finds the people, and Muse Image makes the cover. It works for sellers too: from one selling video it made one clip per product, five in all. On my four-hour stream, Muse Glimmer on one 16 GB home graphics card gave me a finished clip in 12 minutes. Meta's cloud models saw only small pieces, about 8 cents in total, and the four-hour file stayed on my computer. You get a solid first draft. Tweak it by hand, or just ask: "make it look warmer."

Team