Sanctuary AI vs Fourier Intelligence — independent, side-by-side analysis.
Phoenix leads in more DOF, while GR-1 leads in higher payload, faster speed. Overall, GR-1 has an edge in 2 out of 3 compared categories.

Sanctuary AI

Fourier Intelligence
8
Phoenix
65
GR-1
Carbon AI fully proprietary. Microsoft Azure backend.
ROS + Isaac Lab + MuJoCo. Growing research community.
Phoenix: Contact (enterprise). GR-1: ~$150,000–$170,000.
GR-1 rates a higher payload at 50 kg vs 25 kg. Payload ratings are vendor claims and do not always include a duty cycle — peak vs sustained payload can differ significantly.
Phoenix is in active development without commercial availability. GR-1 is shipping to customers. Status reflects the vendor's published commercial position as of the last review and can change between announcement and actual delivery.
Phoenix has no ROS support; GR-1 has ROS 1 only. For research and multi-vendor robotics stacks, native ROS 2 is the strongest signal of ecosystem maturity.
Dernière mise à jour: 2023