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SightSeen

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

SightSeen — Demo video

Students moving to a new city or country often sign for a room they’ve never seen. I did. I’m an international student, and I signed for a room based on a few photos because meeting a stranger landlord in person felt impossible. When I got there, I hated the place. The worst version is a scam: real photos of a room the scammer can’t get into, sometimes with a real tour stolen from the listing. SightSeen fixes both with one link. The student texts it to the landlord, and the landlord films the room in the browser while holding up a one-time code. From that one video, MapAnything rebuilds the room in 3D at real size in metres. Muse Spark and SAM 3.1 find every object, and SAM 3D Objects rebuilds each one whole, so the student can walk the room, measure it, drop in a photo of their own desk to see if it fits, see it as a realistic photo with Muse Image, and stand in it at real size on a Meta Quest. Then it checks the tour. Muse Spark reads every number in the video without being told the code, so an old or stolen tour can’t pass. The ad’s photos have to line up with the video in 3D, or Muse Spark names what can’t have changed. A pan over a still photo has no real depth, and that gets caught too. The student gets one clear verdict, “Don’t pay yet” or not, with the evidence under it. The AI reads and compares, and plain rules decide. Next, landlords can film the tour hands-free on Meta’s AI glasses. It’s live, needs no sign-in, and costs about $2 a room on Modal. Try it live: https://sightseen-live.vercel.app

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