I am Stella Qian. I test humanoid robots. Here is my honest take on the Unitree G1 after spending three weeks with it in the lab.
What is the Unitree G1?
Unitree Robotics is based in Hangzhou. The G1 is their full-size bipedal humanoid: 127 cm tall, 35 kg, 23 degrees of freedom. Base price is $16,000. That is the cheapest full-size humanoid on the market right now, by a large margin. Unitree also released UnifoLM-VLA-0 in early 2026, an open-source vision-language-action model that runs on the robot. You download the weights, fine-tune for your tasks, and deploy. No licensing fees.
Specifications
- Height: 127 cm
- Weight: 35 kg
- Degrees of freedom: 23
- Payload: 3 kg per hand
- Speed: up to 2 m/s
- Battery: 2 hours
- AI model: UnifoLM-VLA-0, open-source (MIT license)
- Price: from $16,000
Advantages
Price. At $16,000, the G1 is available to university labs, small integrators, and startups. No other full-size humanoid costs under $40,000. This opens the door for teams that want to test before committing to a large purchase.
Open-source AI model. UnifoLM-VLA-0 has fully open weights. You can train new tasks, contribute to the community, and build on hundreds of existing libraries. By mid-2026, over 400 teams had submitted fine-tuned models on the Unitree GitHub repo. No other Chinese humanoid platform has this kind of active developer base.
Walking stability. On stairs with 15 cm risers and rough lab floors, the G1 recovered cleanly in 19 of 20 trials. That is strong for a robot in this price range.
Active community. The GitHub repo has over 8,000 stars. Documentation, task libraries, and bug reports are updated regularly. If you hit an issue, someone has usually seen it.
Disadvantages
Limited hands. The base model ships with 3-finger hands. For precision tasks under 1 cm, the success rate drops. You need the Pro upgrade or a third-party gripper for fine manipulation.
Low payload. 3 kg per hand rules out most logistics tasks involving boxes or tools. Check your payload requirement before you buy.
Short battery. Two hours works in a lab. In a production shift, you need a dock rotation strategy or a second unit standing by.
Support timezone. Unitree is in Hangzhou. For teams in Europe or North America, support responses average 24 to 48 hours. Not a problem for R&D, but plan for it in production.
My verdict
The G1 is the best starting point for any team entering humanoid robotics in 2026. The open-source model and the price make it the default first choice. If your tasks fit within 3 kg payload and a two-hour window, it can go into production. If not, look at heavier units like the Engine AI SE01 or the UBTECH Walker S2.
More details on the Unitree G1 official page. Our full technical breakdown is on the Unitree G1 page on Robots Maker.
