Navi is an AI that unbreaks your day in the city. It's spatially shaped, not text-shaped: every answer is built from the map, memory of you (your taste and corrections), and the live moment, inputs no chatbot treats as first-class. It closes one loop, discover, plan, go: find the right place, turn it into a plan, and walk it on a route built for a human, not a car. Where general AI hands you ten options, Navi gives you the one, on a moat of 85M+ street segments scored for what matters on foot.