Cyborg Index · July 2026

Cirrus-05 vs Onyx-08

Both humanoids read on the same 8 axes and 40 sub-axes, using the published Index scores. Every difference below carries the public evidence behind it, and sub-axes with no public evidence count as 0 rather than being skipped.

Overall standing

Capability score · 0–5 over 40 sub-axes
Cirrus-05
Vendor Echo
2.71of 5
Rank
#7
Coverage
33/40
Proof
2.03
Rank down 3 to 7 (was 4)
Onyx-08
Vendor Hotel
2.74of 5
Rank
#6
Coverage
25/40
Proof
1.20
The short answer

Cirrus-05 and Onyx-08 score the same — 2.71 and 2.74.

Nothing separates them overall. The table below shows the axes where they actually differ.

Where Cirrus-05 is ahead
  • Deployment+1.57Independently backed
  • HRI+0.87Independently backed
Where Onyx-08 is ahead
  • Manipulation+0.95Rests on claims and demos
  • Autonomy+0.55Rests on claims and demos
  • Perception+0.39Rests on claims and demos
  • Locomotion+0.37Rests on claims and demos
What would change it

5 sub-axes on the trailing side have no public evidence yet. If all of them scored full marks they would be worth 0.63 — against a gap of 0.02.

  • Perception · Sensor stackup to +0.125
  • Perception · Scene understandingup to +0.125
  • Locomotion · Stairsup to +0.125
  • Locomotion · Uneven terrainup to +0.125
  • Deployment · Customer diversityup to +0.125
How much we know
73%of sub-axes covered

We have public evidence for 73% of the 40 sub-axes across these two.

Cirrus-05 · 83%
Onyx-08 · 63%
The shape of each score
Cirrus-052.71
LocomotionManipulationPerceptionAutonomyLearningHRIDeploymentSafety

33/40 sub-axes have evidence

Faint outline = Onyx-08

Onyx-082.74
LocomotionManipulationPerceptionAutonomyLearningHRIDeploymentSafety

25/40 sub-axes have evidence

Faint outline = Cirrus-05

Reading the wheels — clockwise from the top
  1. 1 Locomotion
  2. 2 Manipulation
  3. 3 Perception
  4. 4 Autonomy
  5. 5 Learning
  6. 6 HRI
  7. 7 Deployment
  8. 8 Safety

Each wheel has 40 spokes — five per axis. A longer spoke is a higher score, and the dashed rings mark 1 to 4. Hover or tab onto any spoke to read the axis, the sub-axis and the exact value. A missing spoke means there is no public evidence for that sub-axis yet, which is not the same as scoring zero. The faint outline on each wheel is the other humanoid, drawn on the same scale.

Every axis, every sub-axis
Cirrus-05Onyx-08
Shared 0–5 track · widest gap first
Deployment
2.50 / 0.93 1.57
Independently backedEvidenced cells · 4/5 vs 4/5
Named pilots
1.97 / 1.02 0.95
Field hours
2.06 / 1.06 1.00
Customer diversity
2.87 / 0.73 2.14
Supportability
2.87 / 0.88 1.99
Commercial posture
2.73 / 0.95 1.78
Manipulation
2.63 / 3.57 0.95
Rests on claims and demosEvidenced cells · 5/5 vs 5/5
Grasp variety
2.65 / 3.71 1.06
Bimanual
2.58 / 3.12 0.54
Force control
2.96 / 3.77 0.81
In hand reorient
2.37 / 3.53 1.16
Tool use
2.57 / 3.73 1.16
HRI
3.20 / 2.33 0.87
Independently backedEvidenced cells · 5/5 vs 4/5
Speech io
3.38 / 2.42 0.96
Nl instruction
3.41 / 2.45 0.96
Intent recognition
3.14 / 2.25 0.89
Safe proximity
3.39 / 1.84 1.55
Social presentation
2.68 / 2.70
Autonomy
2.51 / 3.06 0.55
Rests on claims and demosEvidenced cells · 5/5 vs 4/5
Unattended operation
2.53 / 2.59 0.06
Task horizon
2.11 / 3.28 1.17
Generalization
2.79 / 3.44 0.65
Instruction following
2.56 / 2.72 0.16
Recovery from failure
2.54 / 3.27 0.73
Perception
2.90 / 3.30 0.39
Rests on claims and demosEvidenced cells · 2/5 vs 3/5
Sensor stack
2.83 / 3.62 0.79
Scene understanding
3.37 / 3.25 0.12
Spatial memory
3.09 / 2.95 0.14
Object permanence
2.44 / 3.41 0.97
Semantic world model
2.78 / 3.25 0.47
Locomotion
2.96 / 3.33 0.37
Rests on claims and demosEvidenced cells · 3/5 vs 5/5
Flat ground walking
3.06 / 3.01 0.05
Uneven terrain
2.86 / 3.74 0.88
Stairs
3.02 / 3.54 0.52
Disturbance recovery
2.96 / 3.46 0.50
Speed endurance
2.90 / 2.91
Learning
2.63 / 2.83 0.20
Rests on claims and demosEvidenced cells · 5/5 vs 0/5
Imitation learning
3.07 / 3.07
Sim to real
2.27 / 2.90 0.63
Foundation policy
2.13 / 2.76 0.63
Data flywheel
3.06 / 2.99 0.07
Transfer fine tune
2.62 / 2.42 0.20
Safety
2.36 / 2.53 0.17
Rests on claims and demosEvidenced cells · 4/5 vs 0/5
Functional safety
2.75 / 2.50 0.25
Certifications
2.36 / 2.45 0.09
E stop arch
2.03 / 2.23 0.20
Incident transparency
2.47 / 2.62 0.15
Force impact limits
2.21 / 2.86 0.65
Segment length and thickness are the gapNo public evidence yet
Which is better for what

Each row is decided by the axes that matter for that kind of work, read off the same Capability scores as the ranking. Rows only appear where both humanoids have enough public record to answer.

Manufacturing and warehouse work
Named pilots and field hours, backed by what the hands can actually do.
Cirrus-05
Cirrus-05 scores higher on Deployment and Manipulation — 2.54 against 1.81 for Onyx-08.
Running without a human in the loop
Unattended operation and task horizon, backed by what the robot can perceive.
Onyx-08
Onyx-08 scores higher on Autonomy and Perception — 3.14 against 2.64 for Cirrus-05.
Moving through difficult ground
Uneven terrain, stairs and disturbance recovery.
Onyx-08
Onyx-08 scores higher on Locomotion — 3.33 against 2.96 for Cirrus-05.
Working alongside people
Functional safety and certification, plus how it reads and answers people.
Cirrus-05
Cirrus-05 scores higher on Safety and HRI — 2.64 against 2.47 for Onyx-08.
Picking up new tasks
Imitation learning, transfer and generalisation across tasks.
Onyx-08
Onyx-08 scores higher on Learning and Autonomy — 2.91 against 2.59 for Cirrus-05.
Research and developer use
How much of the stack is documented and reproducible.
Onyx-08
Onyx-08 scores higher on Learning and Perception — 2.98 against 2.72 for Cirrus-05.
How solid the record is on each side
Cirrus-05
Sub-axes on the record
33 of 40 · 83%
Carried by verified material
75%
Rests on claims and demos
0.68
Best documented — Locomotion, Manipulation, Autonomy, Learning, HRI, Deployment, Safety
Nothing on the record — every axis has at least one read
Onyx-08
Sub-axes on the record
25 of 40 · 63%
Carried by verified material
44%
Rests on claims and demos
1.54
Best documented — Locomotion, Manipulation, Perception, Autonomy, HRI, Deployment
Nothing on the record — Learning, Safety

What this comparison cannot settle

  • Neither humanoid has a public read on 2 of the 40 sub-axes, so those cannot be compared at all.
  • 18 sub-axes are read on only one side. A one-sided cell is undecided, not a zero for the silent side.
  • Demonstrations happen in different environments and product revisions are not always equivalent, so like-for-like uptime and throughput figures do not exist for most of the field.
Cyborg IndexJuly 2026 editionCapability scoremethodologypreview cohort