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

Cite this page

humanoidrecord.com, "Shanghai Kepler Robotics Co., Ltd. Forerunner K2 vs Sanctuary AI Phoenix", page snapshot 2026-11-03, https://humanoidrecord.com/compare/kepler-k2-vs-sanctuary-ai-phoenix/

Embed this comparison

Live and auto-updating. Recommended height: 900px. Links back to humanoidrecord.com.

<iframe src="https://humanoidrecord.com/embed/compare/kepler-k2-vs-sanctuary-ai-phoenix/" style="width:100%;height:900px;border:0" loading="lazy" title="Shanghai Kepler Robotics Co., Ltd. Forerunner K2 vs Sanctuary AI Phoenix — humanoidrecord.com"></iframe>

Dataset date: 2026-11-03

175 cmhuman

175 cm³Shanghai Kepler Robotics Co., Ltd. Forerunner K2

170 cm⁵Sanctuary AI Phoenix

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

claimed → demonstrated
demonstrated
first delivery recorded

Evidence sheet

Only differences Showing all 20 rows

Evidence sheet, scrolls horizontally below 900px
Property	Shanghai Kepler Robotics Co., Ltd. Forerunner K2	Sanctuary AI Phoenix	Difference
Height (cm)	175 cm³ Not reviewed The cited source has not been reviewed for this specific claim.	170 cm⁵ Not reviewed The cited source has not been reviewed for this specific claim.	-5 cm
Weight (kg)	75 kg⁶ Not reviewed The cited source has not been reviewed for this specific claim.	57.9 kg⁷ Not reviewed The cited source has not been reviewed for this specific claim.	-17.1 kg
Degrees of freedom	52⁸ Source unavailable The cited source could not be accessed during review. Reason The per-host request budget was reached during the review, so the source content and claim could not be re-established. Checked 2026-09-27 Review method Text review Media type Article Publisher relation Independent source	20⁹ Needs review The reviewed source does not provide enough evidence for this specific claim. Reason The reviewed source did not establish both the exact recorded value and the concrete robot variant for this specification. Checked 2026-09-27 Review method Text review Media type Article Publisher relation Independent source	-32 DoF
Walking speed (km/h)	no sourced value	4.8 km/h¹⁰ Not reviewed The cited source has not been reviewed for this specific claim.	unknown on one side
Payload (kg)	30 kg¹ Not reviewed The cited source has not been reviewed for this specific claim.	20.5 kg⁴ Not reviewed The cited source has not been reviewed for this specific claim.	-9.5 kg
Battery runtime (min)	480 min² Not reviewed The cited source has not been reviewed for this specific claim.	no sourced value	unknown on one side
Hands	no sourced value	no sourced value	no sourced value
Actuator torque (Nm)	no sourced value	no sourced value	no sourced value
Battery (Wh)	no sourced value	no sourced value	no sourced value
Battery swappable	no sourced value	no sourced value	no sourced value
Locomotion	bipedal¹¹ Not reviewed The cited source has not been reviewed for this specific claim.	bipedal¹² Not reviewed The cited source has not been reviewed for this specific claim.	—
SDK / ROS	no sourced value	no sourced value	no sourced value
Simulation	No simulation artifact confirmed in targeted search This records a searched-but-not-confirmed result. It does not mean simulation support is unavailable. Search checked 2026-09-27 Search result Targeted searches found no confirmed model for this record; does not mean unavailable. Searched source 1	No simulation artifact confirmed in targeted search This records a searched-but-not-confirmed result. It does not mean simulation support is unavailable. Search checked 2026-09-27 Search result Targeted searches found no confirmed model for this record; does not mean unavailable. Searched source 1	—
Actuator architecture	No actuator architecture confirmed in targeted search This records a searched-but-not-confirmed result. It does not mean a particular architecture is absent. Search checked 2026-09-27 Search result Targeted actuator searches did not confirm an exact-variant architecture claim for this record; this does not mean none exists. Searched source 1	No actuator architecture confirmed in targeted search This records a searched-but-not-confirmed result. It does not mean a particular architecture is absent. Search checked 2026-09-27 Search result Targeted actuator searches did not confirm an exact-variant architecture claim for this record; this does not mean none exists. Searched source 1	—
Warranty (shortest–longest)	no sourced value	no sourced value	no sourced value
Order type	preorder¹³ Not reviewed The cited source has not been reviewed for this specific claim.	quote required¹⁴ Not reviewed The cited source has not been reviewed for this specific claim.	—
Latest price	248,000Bumblebee base pre-sale configuration · CNY · 2025-08-01¹⁵ Not reviewed The cited source has not been reviewed for this specific claim.	no sourced value	unknown on one side
Announced	2024-10-21¹⁶ Not reviewed The cited source has not been reviewed for this specific claim.	2023-05-16⁵ Not reviewed The cited source has not been reviewed for this specific claim.	-17 mo
Recorded first customer delivery	no sourced value	no sourced value	no sourced value
Recorded delivery status	Recorded demonstrated	Recorded demonstrated	—

Capabilities

Capabilities table
Capability	Shanghai Kepler Robotics Co., Ltd. Forerunner K2	Sanctuary AI Phoenix
Teleoperation shown	—	T¹⁷ Needs review The reviewed source does not provide enough evidence for this specific claim. Reason The text source was reviewed, but no video segment was watched; the existing capability status and autonomy classification for the exact recorded robot variant were not fully verified. Checked 2026-09-27 Review method Text review Media type Article Publisher relation Independent source
Continuous operation (1h+)	?¹⁸ Source unavailable The cited source could not be accessed during review. Reason The per-host request budget was reached during the review, so the source content and claim could not be re-established. Checked 2026-09-27 Review method Text review Media type Article Publisher relation Independent source	—

Notes

30 kg (66 lbs) (accessed 2026-09-20) — source
1-hour charge, 8-hour operation (accessed 2026-09-20) — source
175 cm (5 ft 9 in) (accessed 2026-09-20) — source
55 lbs (20.5 kg) (accessed 2026-09-20) — source
5'7″ (1.7 m) (accessed 2026-09-20) — source
75 kg (165 lbs) (accessed 2026-09-20) — source
155 lbs (57.9 kg) (accessed 2026-09-20) — source
52 total; hands feature up to 11 DOF per hand (active and passive) (accessed 2026-09-20) — source
20 degrees of freedom (accessed 2026-09-27) — source
3 mph (1,300 mm/sec) (accessed 2026-09-20) — source
improved gait planning and control algorithms have enhanced K2's stability against external disturbances and its walking speed (accessed 2026-09-21) — source
The Phoenix model is the sixth generation of the platform and is the first robot model to be complete with legs and worthy of being characterized as a 'humanoid' bipedal robotic system. (accessed 2026-09-21) — source
World's first commercially available planetary roller screw-driven humanoid robot (accessed 2026-09-21) — source
Contact us to get in touch with a member of our commercial team. (accessed 2026-09-21) — source
Pre-sales launched with three configurations starting at ¥248,000 (accessed 2026-09-20) — source
The Forerunner K2 represents the Gen 5.0 robot model, showcasing a seamless integration of the humanoid robot's cerebral, cerebellar, and high-load body functions. (accessed 2026-09-20) — source
the primary use case for our touch sensors is to speed up teleoperation activity (accessed 2026-09-27) — source
1-hour charge, 8-hour operation (accessed 2026-09-20) — source

Cite this comparison: https://humanoidrecord.com/compare/kepler-k2-vs-sanctuary-ai-phoenix/ (data snapshot 2026-11-03)

Correct this comparison or email corrections@humanoidrecord.com.