Cartken Courier vs REV-1 in 2026

Cartken Courier

Cartken (founded 2019 by ex-Google 'Bookbot' engineers; CEO Christian Bersch) makes the Cartken Courier (Model C), a six-wheeled sidewalk delivery bot (about 44 pounds and 1.5 cubic feet of payload, 3 to 6 mph), and is the hardware-sale-pivot archetype of the cohort, editorially distinct from Starship and Serve: where they operate their own fleets, Cartken pivoted toward selling vehicles to operator partners. Its partners include Mitsubishi, Uber Eats, and Melco, and its lineup adds a larger industrial Hauler (2025; 660 pounds / 300 kg) and an indoor Runner.

It is operator-supervised, not driverless. It has raised about $22.5 million (468 Capital, Magna International, Shell Ventures, Mitsubishi Electric). Cap-flag: the roughly 100 Hauler vehicles cited in the Melco deployment is an aggregator-quoted figure pending direct Cartken or Melco disclosure. As a B2B hardware sale to operator partners, there is no consumer price.

REV-1

Refraction AI's REV-1 (Refraction AI, founded 2017 in Ann Arbor by University of Michigan professors) is a distinctive three-wheeled delivery vehicle sized between a sidewalk bot and a car: up to 15 mph with about a 280-pound payload, designed for winter and bicycle-courier-style operation, running primarily in the bike lane or road margin while able to use sidewalks where permitted, a regulatory regime between a sidewalk personal delivery device and a road autonomous vehicle. There is no consumer price: it runs a robots-as-a-service model where customers subscribe to dedicated, brand-customizable robots.

Several verified-vs-claimed points matter. A reported wind-down or acquisition is refuted: Refraction is verified still operating through 2024 to 2026 (new CEO Luke Schneider, an Austin office, Chick-fil-A as a marquee client, an active 2026 profile); the 'Osage Venture Partners exited' label is a venture-portfolio markdown, not a confirmed acquisition or shutdown, so it is not tagged discontinued.

It is recorded at pilot maturity: a roughly 21-person company with a named client and multi-city presence but no independently verified scale figures. Any lifetime delivery count, fleet size, revenue, or live-market count is unverified, and the claim that the REV-1 was discontinued in favor of a 'REF-1' is a likely misread of source language describing a second generation of the same design.