humanoidrobots.systems

Booster T1 vs Kepler Forerunner K2 "Bumblebee"

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

Booster T1 is 57 cm shorter (118 vs 175 cm) and 45 kg lighter (30 vs 75 kg) than Kepler Forerunner K2 "Bumblebee". Booster T1 has 29 fewer degrees of freedom (23 vs 52) than Kepler Forerunner K2 "Bumblebee". Openness score: Booster T1 30, Kepler Forerunner K2 "Bumblebee" 0 (of 100); only Booster T1 publishes SIM and SW. Availability for both: buy.

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Side by side

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Side-by-side specifications. Rows marked with a square differ.
FieldBooster RoboticsBooster T1Kepler Robotics (Shanghai Kepler Exploration Robot Co.)Kepler Forerunner K2 "Bumblebee"Δ first − second
Identity
Maker (differs)Booster RoboticsKepler Robotics (Shanghai Kepler Exploration Robot Co.)
ClassHumanoidHumanoid
StatusActiveActive
AvailabilityBuyBuy
CountryChinaChina
Year20242024
Specifications
Height (differs)118cm175cm−57 cm (-33%)
Mass (differs)30kg75kg−45 kg (-60%)
Degrees of freedom (differs)2352−29 (-56%)
Payload—unsourced30kg
Top speed—unsourced—unsourced
Runtime (differs)120min480min−360 min (-75%)
Battery capacity—unsourced2,330Wh
Price—unsourced30,000USD
Actuators—unsourcedHybrid roller-screw linear + rotary actuators
Compute (differs)NVIDIA Jetson AGX Orin (up to 200 TOPS)100 TOPS onboard
Sensors—unsourced80+ integrated sensors; tactile dexterous hands
Openness and provenance
Openness bar300
Openness score (differs)30/ 1000/ 100+30
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) (differs)publicnot public
Trained policies (10)not publicnot public
Verification level (differs)L2L0
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: Booster T1, Kepler Forerunner K2 "Bumblebee".

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