EngineAI SA01

~$5,400 (China) · ~$7,599 reseller

Discontinued · used/leftover onlyRL walkingLegs-onlyLegacy model40 kg

Weeks+Shipping: 6–12+ wks?.

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Overview

A pure locomotion testbed whose 12 DOF maps cleanly onto a MuJoCo biped. But it's 40 kg, and it's a quietly delisted 2024 product with shaky reseller availability. Pass unless one turns up used.

Type: Biped robot · Kid-size humanoids (≤ 1.3 m)
Maker: EngineAI
Released: 2024
Price: ~$5,400 (China) · ~$7,599 reseller
Status: Discontinued · used/leftover only
Best for: Professionals & labs
Programming: Limited SDK

Price and shipping

~$5,740 (¥38,500) at the July 2024 launch. The reseller 4GLTEMALL lists the SA01 EDU at $7,599 as in stock with worldwide express shipping, but actual fulfillment is unconfirmed

Shipping: 6–12+ wks?. A legacy model that EngineAI no longer features. The reseller 4GLTEMALL lists the SA01 EDU in stock at $7,599, with fulfillment unconfirmed. 4GLTEMALL ↗

Specifications

Category	Bipeds · Kid-size humanoids (≤ 1.3 m)
Released	2024
Country	China
Availability	Discontinued · used/leftover only
Sales	Over 100 ordered and delivered by early 2025 (estimate) Shenzhen Bay Technology ↗
Programmability	Limited SDK
Built-in autonomy	None / scripted · Moves only when controlled, or plays preset motions
LLM support	Possible via SDK · Marketed SDK with thin details, no LLM features.
MuJoCo simulation	Official model · EngineAI's legged gym includes an SA01 MJCF and sim2sim script. engineai_legged_gym ↗
NVIDIA Isaac simulation	Sim-to-real kit · EngineAI's Isaac Gym training for SA01, and engineai_humanoid ships an SA01 RL policy controller. engineai_legged_gym ↗
Gazebo simulation	Maker URDF only · Official SA01 URDF in engineai_legged_gym, no Gazebo package. engineai_legged_gym ↗
Best for	Professionals & labs
Vision sensors	No vision sensors
Actuators	Brushless / direct-drive motors
Audio	No audio
Compute type	Laptop / PC as the brain
Balance type	RL walking
Height	~129 cm
Weight	~40 kg
Compute	User-supplied (10–15 kg payload)
Speed	~1 m/s
DOF	12 (6/leg), legs + torso, no arms
Sensors	IMU (cameras are add-ons)
Balance	RL-trained biped marketed as staying upright when punched or kicked.
SDK	Marketed as open source with SDK (details thin)

Common questions

How much does SA01 cost?

SA01 is listed at ~$5,400 (China) · ~$7,599 reseller. ~$5,740 (¥38,500) at the July 2024 launch. The reseller 4GLTEMALL lists the SA01 EDU at $7,599 as in stock with worldwide express shipping, but actual fulfillment is unconfirmed.

Can SA01 be bought today?

It is discontinued, though used or leftover units still turn up. A legacy model that EngineAI no longer features. The reseller 4GLTEMALL lists the SA01 EDU in stock at $7,599, with fulfillment unconfirmed.