Hiwonder AiNex

$730 – $1,040

AvailableZMP / IK gaitROS + PythonAuto get-upPrime-eligible

≤ 1 weekShipping: 2–10 days.

LEARN MORE (Hiwonder) ↗

Overview

The most hackable affordable servo humanoid, with real Linux, ROS, a camera and tunable IK gait. It walks, climbs steps and kicks, but it balances by careful foot placement, not dynamic control. It's the only one on this page available in two days.

Type: Biped robot · Walks, but doesn't really balance
Maker: Hiwonder
Released: 2023
Price: $730 – $1,040
Status: Available
Best for: Ages 14+
Programming: Full SDK

Price and shipping

Hiwonder direct $730–1,000 by kit/RAM. Amazon Pi 5 4 GB $970

Shipping: 2–10 days. Amazon has Pi 5 versions shipped by Amazon with Prime (~2 days, "only 4 left" on 4 GB). Hiwonder direct ships DHL/FedEx from China, ~6 working days. Amazon ↗

Specifications

Category	Bipeds · Walks, but doesn't really balance
Released	2023
Country	China
Availability	Available
Programmability	Full SDK
Built-in autonomy	Reactive · Responds to its surroundings without a map, such as avoiding obstacles or following a person
LLM support	Official LLM tools · Hiwonder advertises ChatGPT multimodal model demos for voice control, scene understanding and object sorting, run via OpenAI's API. Hiwonder AiNex ↗
MuJoCo simulation	Maker URDF only · Hiwonder supplies the AiNex URDF/SDF (by request to support), with nothing for MuJoCo. Hiwonder AiNex ↗
NVIDIA Isaac simulation	Maker URDF only · Hiwonder supplies the AiNex URDF/SDF (by request to support), with nothing for Isaac. Hiwonder AiNex ↗
Gazebo simulation	Official model · Hiwonder's ROS software includes a Gazebo simulation of AiNex. Hiwonder AiNex ↗
Best for	Ages 14+ (estimated)
Vision sensors	Camera
Actuators	Smart servos (Dynamixel, Feetech…)
Audio	No audio
Compute type	Raspberry Pi
Balance type	ZMP / IK gait
Height	41.5 cm
Weight	2.25–2.45 kg
Compute	Raspberry Pi 5 (2/4/8 GB)
Speed	0.21 m/s
DOF	20 (Starter) / 24 (Standard, with hands)
Sensors	9-axis IMU, 120° camera on pan/tilt, servo feedback
Balance	IK gait with IMU stabilization and auto get-up after falls. Quasi-static stepping on big feet that won't catch a real shove.
SDK	ROS 1 (no ROS 2 yet), Python, IK gait tuning tool

Common questions

How much does AiNex cost?

AiNex is listed at $730 – $1,040. Hiwonder direct $730–1,000 by kit/RAM. Amazon Pi 5 4 GB $970.

Can AiNex be bought today?

Yes, it is on sale. Typical shipping time is 2–10 days. Amazon has Pi 5 versions shipped by Amazon with Prime (~2 days, "only 4 left" on 4 GB). Hiwonder direct ships DHL/FedEx from China, ~6 working days.

Who makes AiNex?

AiNex is made by Hiwonder. It came out in 2023.

Can AiNex be programmed?

Full SDK. ROS 1 (no ROS 2 yet), Python, IK gait tuning tool.

Does AiNex have AI chat or LLM support?

Official LLM tools. Hiwonder advertises ChatGPT multimodal model demos for voice control, scene understanding and object sorting, run via OpenAI's API.