Comparison · 2 robots

Fourier GR-1 · Nori A3

All humanoid robots. Every measure below is plotted against the full class, so a difference can be read against how much the class itself varies.

Fourier GR-1
Nori A3

Fourier Intelligence

Fourier GR-1

Autonomy: IIAssisted Autonomy
Score: 75/100 Promising
Readiness: Not assessed
Price: Not tracked

Nori Robotics

Nori A3

Autonomy: IIAssisted Autonomy
Score: 51/100 Plausible
Readiness: Not assessed
Price: $1,688list

Up to three

01 Classification

What each one does on its own.

The Autonomy Ladder is the same five rungs for every robot on the site. A rung describes the conditions a robot handles without you, not how good it is.

Generalized

Any task, any setting

Environmental

Handles new obstacles without help

III

Conditional

Finishes familiar jobs on its own

Assisted

Runs preset routines, needs rescue

Fourier GR-1Nori A3

Manual

One action, on command

02 Assessment

Where they actually differ.

The Robovations Score is nine inputs across three pillars, each weighted as shown and each scored so that more is better. A robot can lead on one and trail on another, which is the point of showing them apart. Cost of ownership and data handling are reported on each robot's own page and are never averaged into the score.

None of these robots carries a scored assessment yet, so there is nothing to plot here. The classification and evidence below still apply.

03 Measured against the class

How far apart is a long way?

A number only means something next to the spread it sits in. Each track below is the real range across every classified robot in the class, with the median marked.

Weight48 with a published figure

121.3 lbs45 lbs

Fourier GR-1121.3 lbs
Nori A345 lbs

26.5 lbsmedian 142.6 lbs661.4 lbs

Height51 with a published figure

65 in57.1 in

Fourier GR-165 in
Nori A357.1 in

34.7 inmedian 66.9 in86.6 in

Not compared, because fewer than two of these robots carry a published figure: Price, Suction, Runtime, Charge time, Noise.

04 Ownership

What the numbers leave out.

The trade-off

What each design gives up to be good at what it is good at.

Fourier GR-1

GR-1 walks and reaches to a marked position on its own; any task beyond that defaults to a human teleoperator.

Documented deployments name Chinese hospitals and European auto plants as sites, not tasks: Fourier publishes no task-level detail for either program.

No published battery capacity or runtime figure exists for the GR-1, so planning a multi-day deployment depends on terms set by the distributor, not Fourier.

Fourier’s decade of rehab-robotics experience explains why the GR-1 was engineered for safe human proximity, but gait training and patient spotting belong to the ExoMotus exoskeleton line, not to any documented GR-1 task.

Nori A3

At $1,688 you get the hardware; the chores are a project you record yourself.

Off-board inference keeps the onboard computer at Raspberry Pi 5 cost, which makes the home network part of the robot.

Who each one is wrong for

Stated by the record itself. A robot being wrong for a household is a fact about fit, not a fault.

Fourier GR-1

Consumers or small-business owners seeking autonomous help at home: Fourier publishes no GR-1 price; distributors list it quote-only, with both purchase and lease paths. The platform requires on-site integration and dedicated technician availability, and no consumer support ecosystem exists.
Environments without continuous supervision and safety protocols: Teleoperation fallback is mandatory for complex tasks; unattended operation is not supported or recommended.
Applications requiring instantaneous generalization across novel environments: Operates within structured, pre-programmed task domains. Manual task scripting and environment reconfiguration required between deployments.

Nori A3

Households wanting chores done on delivery: No independent source documents which tasks work when the robot arrives, and Nori's own paper reports no measured task performance. Routines are recorded as demonstrations first.
Multi-level homes needing help on more than one floor: The base is wheeled and differentially driven. Nothing in Nori's documentation describes stair climbing, so a second floor means carrying a 20.4 kg robot.
Homes with unreliable internet or no appetite for off-board processing: Policy inference runs on an off-board backend, and Nori's paper names network connectivity as a requirement. Without it, the onboard Raspberry Pi 5 has no learned behavior to run.
Tasks involving heavy items held in the grippers: The 55 kg rating belongs to the lift column. Each arm is rated for 1.5 kg, which limits handling to light household objects.
Buyers who need warranty terms and a support record: Y Combinator lists Nori Robotics as founded in 2026 with five people, and the order page states no warranty or return terms.

What stays your job

The upkeep ownership hands back to you, whatever the autonomy level says.

Fourier GR-1

Daily: Battery charge cycle check and dock connectivity verification.
Weekly: Joint range-of-motion inspection on shoulders, elbows, hips, knees for actuator play or grinding noise.
Monthly: Filter cleaning on cooling system (if deployed in dusty environments); sensor lens wipe on cameras and depth sensors.
Every 3-6 months: Firmware update review and installation by technician.
Annually: Full system calibration and load testing.
As needed: Emergency manual override procedures if autonomous motion stalls.
Service terms: Fourier publishes no lubrication interval, wear-replacement schedule or service pricing for the GR-1’s integrated FSA actuator modules. Those terms come from the supplying distributor and should be established before a deployment is budgeted.

Nori A3

Daily: Recharge the battery, which Nori rates for 6 to 8 hours of operation.
As needed: Record new demonstrations in Nori Lab to add or retrain a task.
As needed: Restart work after the thermal interlock disables the motor bus at 138°F.
As needed: Replace broken parts using the replacement CAD Nori supplies.
As needed: Take backend policy updates, which reach deployed units without a hardware change.
As needed: Clean the lidar window and four camera lenses when perception inputs look obstructed.

05 Evidence

How much each of these is standing on.

Classifications rest on different depths of evidence. A pre-release assessment and a verified one are not the same kind of claim.

Evidence behind each classification
Robot	Evidence status	Sources reviewed	Last assessed
Fourier GR-1	Not Consumer-Ready	5	Aug 2026
Nori A3	Not Consumer-Ready	8	Sep 2026