Robot categories
10 of 10 scored todayEach category is ranked by its own index, against reference scales drawn from its own field. That is deliberate: the humanoid index measures hand dexterity against a human hand and travel speed against a human jog, so applying it to a quadruped would score it zero for lacking thumbs, and to a surgical arm zero for being bolted to the floor. Both numbers would be arithmetically valid and meaningless. How the scoring works →
What is comparable across categories
Composite scores are not comparable between categories — a quadruped's 71 and a humanoid's 71 answer different questions. Two pillars are, because they are scored from ladders rather than physical measurements: a teleoperated submarine and a teleoperated humanoid are equally teleoperated, and shipping is shipping. Autonomy and commercial readiness therefore use the same rungs in every category, and no category's profile is allowed to redefine them.
XHI published
Bipedal and wheeled-biped general-purpose robots with arms, built for work in human environments.
XQI published
Four-legged robots for inspection, security and rough-terrain work, with or without a mounted arm.
XMI published
Stationary industrial arms and collaborative robots, mounted to a floor, bench or gantry.
XMRI published
Wheeled and tracked mobile robots — warehouse AMRs and AGVs, delivery robots, and hospitality or retail service robots.
XAI published
Uncrewed aircraft — multirotor, fixed-wing and VTOL hybrids — for inspection, delivery, survey and defence.
XMarI published
Autonomous underwater vehicles, remotely operated vehicles and uncrewed surface vessels.
XHMI published
Autonomous heavy plant and off-road machines — excavators, haul trucks, tractors and harvesters.
XSI published
Robot-assisted surgery platforms and clinical robots operating under regulatory clearance.
XDI published
Household robots sold at consumer volumes — vacuums, mowers, pool cleaners and companion devices.
XSpI published
Machines that fit no other class — pipe crawlers, lab automation, soft and continuum robots, planetary rovers.
Every category above has a published scoring profile — you can read exactly how each one is measured before any robot has been ranked by it, because a methodology written after the results are in is one fitted to them. Categories marked awaiting data have the rules but not yet the records: every entry has to clear the same ≥2-independent-sources standard as the rest of the site. A category with no profile at all admits nothing, because such a record would silently fall back to the humanoid index — and a drone ranked against a human hand's 22 degrees of freedom is worse than no ranking.