Boston Dynamics (Hyundai) vs Sanctuary AI — independent, side-by-side analysis.
Atlas (Electric) leads in more DOF, while Phoenix leads in higher payload. The two robots are evenly matched, each excelling in different areas.

Boston Dynamics (Hyundai)

Sanctuary AI
25
Atlas (Electric)
8
Phoenix
NVIDIA Isaac (ROS2) but limited public access. Mostly enterprise.
Carbon AI fully proprietary. Microsoft Azure backend.
Atlas (Electric): ~$420,000 (enterprise estimate). Phoenix: Contact (enterprise).
Phoenix rates a higher payload at 25 kg vs 20 kg. Payload ratings are vendor claims and do not always include a duty cycle — peak vs sustained payload can differ significantly.
Atlas (Electric) is shipping to customers. Phoenix is in active development without commercial availability. Status reflects the vendor's published commercial position as of the last review and can change between announcement and actual delivery.
Atlas (Electric) has ros2; Phoenix has no ROS support. For research and multi-vendor robotics stacks, native ROS 2 is the strongest signal of ecosystem maturity.
Atlas (Electric) ships with LiDAR for depth sensing; Phoenix does not. LiDAR adds cost and complexity but improves obstacle detection in low-light or low-contrast environments.
Last updated: 2026