Fourier GR-3 vs. EngineAI SE01

Introduction

Fourier GR-3 and EngineAI SE01 are both full-size bipedal humanoid robots, but they target somewhat different applications.

Fourier GR-3 is a full-size humanoid designed around interactive companionship, embodied AI and human-robot interaction, with Fourier positioning the model as its first “Care-bot.” Its potential applications include public-service environments, research, human-robot interaction and care-oriented settings.

EngineAI SE01 is a full-size bipedal humanoid designed for applications including manufacturing, logistics, research and education.

The main documented differences are in their physical configuration, degrees of freedom, locomotion, runtime, perception systems and intended applications.

At a Glance

How They Compare

In terms of role, Fourier GR-3 and EngineAI SE01 are both full-size bipedal humanoids, but their application focus differs. Fourier positions GR-3 around interactive companionship and human-robot interaction, particularly in public-service and care-oriented environments. EngineAI SE01 has a stronger focus on manufacturing, logistics, research and education.

Their physical specifications also differ. GR-3 stands approximately 165 cm tall and weighs around 71 kg, compared with SE01 at 170 cm and 55 kg. GR-3 offers up to 55 degrees of freedom when configured with its optional 12-DOF dexterous hands, while SE01 is recorded with 32 DOF.

GR-3 has a recorded walking speed of 6.1 km/h, or roughly 1.7 m/s, while SE01 is recorded at up to 2 m/s. GR-3 has an average runtime of approximately three hours, compared with around two hours for SE01.

Manipulation is another point of differentiation. Fourier specifies an approximately 3 kg single-arm payload for GR-3 and offers either 6-DOF or optional 12-DOF dexterous hands. A comparable arm-payload figure is not recorded for SE01.

The robots also take different approaches to perception. GR-3 combines a monocular camera, 6-axis IMU, 360-degree audio pickup and tactile sensors distributed across its head and torso. Its Full-Sense Interaction System combines vision, hearing and touch to support more natural human-robot interaction. SE01 is recorded with a 360-degree LiDAR, Intel RealSense D435, six stereo cameras and an IMU.

GR-3 additionally supports immersive teleoperation, voice interaction, hot-swappable batteries and an AMD Ryzen 7 8845HS processor, with higher-performance computing options including NVIDIA Jetson AGX Orin or Thor.

Summary

Fourier GR-3 and EngineAI SE01 occupy the same broad full-size humanoid category but emphasize different capabilities. GR-3 places greater emphasis on human interaction, tactile and voice-based engagement, dexterity and care-oriented applications, while SE01 is positioned more toward industrial, logistics, research and educational applications.

The comparison also shows significant hardware differences: GR-3 provides up to 55 DOF, a 3 kg single-arm payload and approximately three hours of runtime, while SE01 is lighter, has a higher recorded maximum speed and uses a perception suite built around LiDAR and multiple vision sensors.

The figures above should be read as a direct comparison of the currently documented specifications rather than as a broader assessment of either platform.