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Asimov 1

Menlo Research · 2026

$20,000 kitDIY kit, $20,000 delivered with duties and tariffs covered in most countries (Menlo, October 2026), ordered with a $499 deposit. The March 2026 "Here Be Dragons" pre-order targeted $15,000. Hands, tools and 4G/5G modules are not included. The full BOM is public for self-sourcing
AvailableRL walkingOpen hardware~100 h assemblyIsaac Lab RL kitNo hands
Weeks+Shipping: Monthly batches. The first production batch shipped in late August 2026, with further batches planned monthly. Menlo ships worldwide with duties and tariffs covered in most countries, and lists assembly and servicing partners in the USA and Singapore. Where the kit is made is not published, so how the July 2026 FCC Covered List rule applies to US orders is unclear. Order ↗

Overview

An open-source 1.2 m humanoid sold as an unassembled kit, with the CAD, schematics, simulation model and onboard code all public. It is aimed at labs and serious builders who want a robot they can repair and modify themselves, with a Python SDK and an Isaac Lab training repo for locomotion. The catch is roughly 100 hours of assembly for a $20,000 kit, no hands included, and several software pieces still listed as coming soon.

The most open full-body humanoid on sale, but a long, expensive build rather than a ready-made robot.

Specifications

CategoryBipeds · Open-source RL bipeds
Released2026
CountrySingapore, Vietnam, USA
AvailabilityAvailable
ProgrammabilityOpen source (hardware + software)
Built-in autonomyNone / scripted · Moves only when controlled, or plays preset motions
LLM supportPossible via SDK · No built-in LLM. The menlo-sdk Python SDK drives stand, balance, walk, joints, camera and audio, so an LLM on a computer could control it. Asimov SDK docs ↗
MuJoCo simulationOfficial model · Official MJCF in the asimov-1 repo. Menlo's earlier asimov-mjlab training repo covers the legs-only v0, not Asimov 1. asimov-1 ↗
NVIDIA Isaac simulationSim-to-real kit · Menlo's Cyclotron is an Isaac Lab extension (PPO + AMP) for training Asimov 1 locomotion and deploying it to the real robot. Cyclotron ↗
Gazebo simulationMaker URDF only · Official URDF in the asimov-1 repo, no Gazebo package. asimov-1 ↗
Best forProfessionals & labs
Vision sensorsCamera
ActuatorsBrushless / direct-drive motors
AudioSpeaker, Microphone
Compute typeRaspberry Pi, Other ARM chip
Balance typeRL walking
Height1.2 m
Weight35 kg
ComputeRaspberry Pi 5 (media, networking) + Radxa CM5 (motion control and locomotion)
Speed0.3 m/s in the SDK walk example (top speed not published)
DOF25 (6/leg, 5/arm, 1 waist, 2 neck), EC-A series actuators, 12–40 N·m rated, 36–120 N·m peak, parallel RSU ankles
Sensors2 MP monocular camera, 6-axis IMU, stereo mic array, 10 W speaker
BalanceFull-body RL locomotion policy in the firmware. Cyclotron trains new policies in Isaac Lab, and the docs say policies trained in Isaac Lab or MJLab deploy zero-shot.
SDKOpen source, with mechanical and electrical CAD, MJCF/URDF and onboard software (hardware CERN-OHL-S-2.0, software GPL-2.0). menlo-sdk (Python) for stand/walk/joints/camera/audio over the network or LiveKit. Client SDK, full-body teleop and firmware downloads listed as coming soon

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