Shanghai Kepler Robotics Co., Ltd. Forerunner K2 vs Sanctuary AI Phoenix

Dataset date: 2026-09-20

175 cmhuman
payload 30 kg (claimed)battery runtime 480 min (demonstrated)
ClaimedC175 cm1Shanghai Kepler Robotics Co., Ltd. Forerunner K2
payload 20.5 kg (claimed)
ClaimedC170 cm2Sanctuary AI Phoenix

Height to scale. Width is schematic, derived from weight; not a measured body width.

Shanghai Kepler Robotics Co., Ltd. Forerunner K2Shanghai Kepler Robotics Co., Ltd. Forerunner K2: announced 2024-10-21, first demo 2025-07-27, no dated delivery evidence
Sanctuary AI PhoenixSanctuary AI Phoenix: announced 2023-05-16, no dated delivery evidence

open outline: claimed → demonstrated · hatched: demonstrated · filled dot: first delivery recorded

Evidence sheet

PropertyShanghai Kepler Robotics Co., Ltd. Forerunner K2Sanctuary AI PhoenixDifference
Height (cm)ClaimedC175 cm1ClaimedC170 cm2-5 cm
Weight (kg)ClaimedC75 kg1ClaimedC57.9 kg2-17.1 kg
Degrees of freedomClaimedC523ClaimedC202-32 DoF
Walking speed (km/h)no sourced valueClaimedC4.8 km/h2no sourced value
Payload (kg)ClaimedC30 kg1ClaimedC20.5 kg2-9.5 kg
Battery runtime (min)DemonstratedD480 min1no sourced valueno sourced value
Handsno sourced valueno sourced value—
Latest priceClaimedCCNY 248,0001no sourced value—
Announced2024-10-2132023-05-162-17 mo
First customer deliveryno sourced valueno sourced valueno sourced value
Delivery statusdemonstrateddemonstrated—

Notes

  1. 30 kg (66 lbs) (accessed 2026-09-20) — source
  2. 55 lbs (20.5 kg) (accessed 2026-09-20) — source
  3. 52 total; hands feature up to 11 DOF per hand (active and passive) (accessed 2026-09-20) — source

Cite this comparison: https://humanoidrecord.com/compare/kepler-k2-vs-sanctuary-ai-phoenix/ (accessed 2026-09-20)

Correct this comparison or email corrections@humanoidrecord.com.