humanoidrobots.systems

Boston Atlas (hydraulic) vs ROBOTIS OP3

Generated from the registry · revision 2026-09-26 · openness out of 100

No height, mass, DOF or payload figure is sourced for both Atlas (hydraulic) and ROBOTIS OP3 yet. Openness score: Atlas (hydraulic) 0, ROBOTIS OP3 45 (of 100); only ROBOTIS OP3 publishes SIM, FW and SW. Availability: Atlas (hydraulic) research only, ROBOTIS OP3 buy.

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Side by side

■ rows differ
Side-by-side specifications. Rows marked with a square differ.
FieldBoston DynamicsBoston Atlas (hydraulic)ROBOTISROBOTIS OP3Δ first − second
Identity
Maker (differs)Boston DynamicsROBOTIS
ClassHumanoidHumanoid
Status (differs)DiscontinuedActive
Availability (differs)Research onlyBuy
Country (differs)United StatesSouth Korea
Year2013—unsourced
Specifications
Height—unsourced51cm
Mass—unsourced3.5kg
Degrees of freedom—unsourced20
Payload—unsourced—unsourced
Top speed—unsourced—unsourced
Runtime—unsourced—unsourced
Battery capacity—unsourced36.6Wh
PriceNot for sale—unsourced
Actuators (differs)Hydraulic20x Dynamixel XM430-W350-R
Compute—unsourcedIntel NUC i3, 8GB RAM
Sensors—unsourcedLogitech C920 camera, 9-axis IMU
Openness and provenance
Openness bar045
Openness score (differs)0/ 10045/ 100−45
CAD (25)not publicnot public
Bill of materials (20)not publicnot public
Sim model (URDF/MJCF) (20) (differs)not publicpublic
Firmware (15) (differs)not publicpublic
Software (10) (differs)not publicpublic
Trained policies (10)not publicnot public
Verification level (differs)L0L2
Sources22
Last checked2026-09-242026-09-24

A dash is an unsourced figure, not zero. Sources for each robot are listed on its spec sheet: Atlas (hydraulic), ROBOTIS OP3.

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