Fourier GR-2 vs Sanctuary AI Phoenix

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Dataset date: 2026-11-03

175 cmhuman

175 cm²Fourier GR-2

170 cm⁴Sanctuary 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	Fourier GR-2	Sanctuary AI Phoenix	Difference
Height (cm)	175 cm² Not reviewed The cited source has not been reviewed for this specific claim.	170 cm⁴ Not reviewed The cited source has not been reviewed for this specific claim.	-5 cm
Weight (kg)	63 kg⁵ Not reviewed The cited source has not been reviewed for this specific claim.	57.9 kg⁶ Not reviewed The cited source has not been reviewed for this specific claim.	-5.1 kg
Degrees of freedom	53⁷ 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	20⁸ 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	-33 DoF
Walking speed (km/h)	no sourced value	4.8 km/h⁹ Not reviewed The cited source has not been reviewed for this specific claim.	unknown on one side
Payload (kg)	3 kg¹ Not reviewed The cited source has not been reviewed for this specific claim.	20.5 kg³ Not reviewed The cited source has not been reviewed for this specific claim.	+17.5 kg
Battery runtime (min)	no sourced value	no sourced value	no sourced value
Hands	12 DoF per hand, tactile sensors¹⁰ Not reviewed The cited source has not been reviewed for this specific claim.	no sourced value	unknown on one side
Actuator torque (Nm)	380 Nm¹¹ 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	no sourced value	unknown on one side
Battery (Wh)	no sourced value	no sourced value	no sourced value
Battery swappable	yes¹² Not reviewed The cited source has not been reviewed for this specific claim.	no sourced value	unknown on one side
Locomotion	no sourced value	bipedal¹³ Not reviewed The cited source has not been reviewed for this specific claim.	unknown on one side
SDK / ROS	no sourced value	no sourced value	no sourced value
Simulation	2 simulation artifacts confirmed. Search checked 2026-09-27 Search result Official repository paths and format markers were checked for two GR-2 artifacts; the models were not executed. Repository-level simulator wording did not establish artifact-specific compatibility. Searched source 1 Searched source 2 Official · URDF · GR-2 v3.0.1 Variant GR-2 v3.0.1 Format URDF Provenance Official Revision 7d96c758f048fe1bf92b3258864d94771ae0c093 License GPL-3.0 Open simulation artifact Artifact evidence Evidence review: supported The cited source was reviewed and supports this specific claim. This does not establish independent truth. Reason Official repository path and format marker checked; model not executed. Checked 2026-09-27 Review method Text review Media type Repository Publisher relation Official source (published by the subject or manufacturer) Robot variant GR-2 v3.0.1 No simulator compatibility claim recorded. Official · MJCF · GR-2 v3_8_7 Variant GR-2 v3_8_7 Format MJCF Provenance Official Revision 7d96c758f048fe1bf92b3258864d94771ae0c093 License GPL-3.0 Open simulation artifact Artifact evidence Evidence review: supported The cited source was reviewed and supports this specific claim. This does not establish independent truth. Reason Official repository path and format marker checked; model not executed. Checked 2026-09-27 Review method Text review Media type Repository Publisher relation Official source (published by the subject or manufacturer) Robot variant GR-2 v3_8_7 No simulator compatibility claim recorded.	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	no sourced value	quote required¹⁴ Not reviewed The cited source has not been reviewed for this specific claim.	unknown on one side
Latest price	no sourced value	no sourced value	no sourced value
Announced	2024-09-30¹⁵ Not reviewed The cited source has not been reviewed for this specific claim.	2023-05-16⁴ Not reviewed The cited source has not been reviewed for this specific claim.	-16 mo
Recorded first customer delivery	no sourced value	no sourced value	no sourced value
Recorded delivery status	Recorded claimed	Recorded demonstrated	—

Capabilities

Capabilities table
Capability	Fourier GR-2	Sanctuary AI Phoenix
Teleoperation shown	—	T¹⁶ 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

Notes

single-arm load capacity of 3 kg (6.6 lb.) (accessed 2026-09-20) — source
175 cm (68.9 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
63 kg (139 lb.) (accessed 2026-09-20) — source
155 lbs (57.9 kg) (accessed 2026-09-20) — source
53 degrees of freedom (accessed 2026-09-27) — source
20 degrees of freedom (accessed 2026-09-27) — source
3 mph (1,300 mm/sec) (accessed 2026-09-20) — source
12-DoF dexterous hands—double the dexterity of previous models (accessed 2026-09-20) — source
With peak torques exceeding 380 N.m (280.3 ft.-lb.), the FSA 2.0 actuators boost GR-2's agility and dynamic capabilities. (accessed 2026-09-21) — source
Since the battery is now swappable, users will be able to swap batteries quickly and return GR-2 to work. (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
Contact us to get in touch with a member of our commercial team. (accessed 2026-09-21) — source
Standing at 175 cm and weighing 63 kg (accessed 2026-09-20) — source
the primary use case for our touch sensors is to speed up teleoperation activity (accessed 2026-09-27) — source

Cite this comparison: https://humanoidrecord.com/compare/fourier-gr-2-vs-sanctuary-ai-phoenix/ (data snapshot 2026-11-03)

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