humanoidrobots.systems

Agility Cassie vs Sanctuary Phoenix

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

No height, mass, DOF or payload figure is sourced for both Cassie and Phoenix yet. Openness score: Cassie 20, Phoenix 0 (of 100); only Cassie publishes SIM. Availability: Cassie research only, Phoenix not for sale.

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Side by side

■ rows differ
Side-by-side specifications. Rows marked with a square differ.
FieldAgility RoboticsAgility CassieSanctuary AISanctuary PhoenixΔ first − second
Identity
Maker (differs)Agility RoboticsSanctuary AI
Class (differs)BipedHumanoid
Status (differs)DiscontinuedResearch
Availability (differs)Research onlyNot for sale
Country (differs)United StatesCanada
Year (differs)20172023
Specifications
Height—unsourced170cm
Mass—unsourced70kg
Degrees of freedom10—unsourced
Payload—unsourced25kg
Top speed—unsourced1.3m/s
Runtime—unsourced—unsourced
Battery capacity—unsourced—unsourced
PriceNot for saleNot for sale
Actuators—unsourcedHydraulic hands (20 DOF total across both hands)
Compute—unsourcedCarbon AI control system
Sensors—unsourcedHaptic sensing in hands
Openness and provenance
Openness bar200
Openness score (differs)20/ 1000/ 100+20
CAD (25)not publicnot public
Bill of materials (20)not publicnot public
Sim model (URDF/MJCF) (20) (differs)publicnot public
Firmware (15)not publicnot public
Software (10)not publicnot public
Trained policies (10)not publicnot public
Verification level (differs)L2L0
Sources (differs)32
Last checked2026-09-242026-09-24

A dash is an unsourced figure, not zero. Sources for each robot are listed on its spec sheet: Cassie, Phoenix.

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