humanoidrobots.systems

Compare humanoids

Pick two to four robots. Every pair also has its own permanent page, 1,326 in total, generated from the same records.

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52 humanoids
2 robots selected.
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Cassie vs HopeJR

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Cassie has 56 fewer degrees of freedom (10 vs 66) than HopeJR. HopeJR lists at $3,000; Cassie is not for sale. Openness score: Cassie 20, HopeJR 90 (of 100); only HopeJR publishes CAD, BOM, FW and SW. Availability: Cassie research only, HopeJR diy build.

Side-by-side specifications. Rows marked with a square differ.
FieldAgility RoboticsAgility CassieThe Robot Studio & Hugging FaceThe HopeJRΔ first − second
Identity
Maker (differs)Agility RoboticsThe Robot Studio & Hugging Face
Class (differs)BipedHumanoid
Status (differs)DiscontinuedActive
Availability (differs)Research onlyDIY build
Country (differs)United StatesFrance
Year (differs)20172025
Specifications
Height—unsourced—unsourced
Mass—unsourced—unsourced
Degrees of freedom (differs)1066−56 (-85%)
Payload—unsourced—unsourced
Top speed—unsourced—unsourced
Runtime—unsourced—unsourced
Battery capacity—unsourced—unsourced
Price (differs)Not for sale3,000USD
Actuators—unsourcedRobstride 02 (humanoid body update)
Compute—unsourced—unsourced
Sensors—unsourced—unsourced
Openness and provenance
Openness bar2090
Openness score (differs)20/ 10090/ 100−70
CAD (25) (differs)not publicpublic
Bill of materials (20) (differs)not publicpublic
Sim model (URDF/MJCF) (20)publicpublic
Firmware (15) (differs)not publicpublic
Software (10) (differs)not publicpublic
Trained policies (10)not publicnot public
Verification level (differs)L2L1
Sources (differs)34
Last checked (differs)2026-09-242026-09-25
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Best-documented pairs

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