Wheel-legged mobility
Climbs curbs and stairs, crosses thresholds, and moves through the infrastructure people already use.
The physical access layer for last-mile delivery
We own the first and last 100 yards.
Delivery robots stop at the curb. Unsorted’s wheel-legged robot climbs the stairs, crosses the threshold, and finishes the delivery at the door.
Meet the platformfollow it in
01 — The access gap
Delivery ends where the sidewalk ends.
The hardest part of delivery is the most ordinary: the curbs, stairs, lobbies, and front doors that keep whole buildings out of a robot’s reach. That is the terrain Unsorted is designed to own.
Real-time adaptation
Navigates without brittle HD maps and responds to glass, parked bikes, crowds, and a world that keeps changing.
Social compliance
Defers, signals, and yields so the robot can share sidewalks, lobbies, and doorways with people.
02 — One robot. Every handoff.
You cover the miles. We close the doorstep.
One platform runs the leg every delivery network still does by hand: from vehicle, store, or curb to the front door.
Vehicle, store, or courier
Your network covers the distance.
Unsorted
Curbs, stairs, doors, elevators, and handoff.
Shelf, lobby, or door
The last hundred yards, completed end to end.
From dark store to lobby. From curb to doorstep. From car to front door.
03 — Working hardware
Built to leave flat pavement.
Sidewalk robots stop where the real world starts. Unsorted is being built around universal urban terrain from day one. Amazon bought its answer — RIVR — in March. Everyone else still needs one.
Flat-pavement robots
The route ends early.
- Curbs
- Limited
- Stairs
- No
- Doors
- No
- Handoff
- Human needed
Unsorted
The robot completes the leg.
- Curbs
- Designed in
- Stairs
- Designed in
- Doors
- In development
- Handoff
- End to end
Live hardware today. Field validation next.
Built to go wherever the route goes.
Sidewalks and stairwells, dark stores and doorsteps, food bags and parcels — one compact, deferential robot for every leg of the route that still looks like the human world.
Unsorted AIPhysical intelligence · 2026