Next-Gen IRON vs Jupiter at a glance
Next-Gen IRON is quicker, with a top speed of 1.9 m/s versus 0.8 m/s for Jupiter. Next-Gen IRON has more degrees of freedom (82 against 40 for Jupiter), which allows finer movement. Jupiter is lighter at 60 kg, compared with 70 kg for Next-Gen IRON.
| Key specs | Next-Gen IRON | Jupiter |
|---|---|---|
| Height | 178 cm | — |
| Weight | 70 kg | 60 kg |
| Top speed | 1.9 m/s (stronger) | 0.8 m/s |
| Runtime | 4 hours | 4 hours |
| Degrees of freedom | 82 (stronger) | 40 |
| Payload | — | 5 kg |
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Which one fits your use?
Based on the uses each robot is built and marketed for. Open a use to see the specs that matter for it.
| Comparing for… | Next-Gen IRON | Jupiter |
|---|---|---|
| Suited | Suited | |
| Suited | Suited | |
| Not marketed | Suited | |
| Suited | Suited |
- Only Jupiter is marketed for home help and elder care.
- Both suit research labs, education and training and hospitality, retail and public-facing roles, so compare the specs for that use.
Next-Gen IRON by XPENG positions as a full-sized humanoid robot at 178 cm tall and 70 kg, targeting versatile applications from industrial inspection to healthcare support. Its full autonomy level, powered by three Turing AI chips delivering 2,250 TOPS, enables real-time vision-language-action processing without constant oversight. Key differentiators include a 7 km/h walking speed, bionic muscles, flexible skin with embedded touch sensors, and a price of around $120,000 to $150,000, emphasizing human-like responsiveness in dynamic environments.
Jupiter by Zeroth enters the market as a compact 165 cm, 60 kg humanoid priced at $89,999, optimized for household chores, elderly assistance, and front-of-house service. With semi-autonomous operation and over 40 degrees of freedom, it balances accessibility with practical task execution. Standout features encompass a 3-5 year battery life, matching 5 kg per arm carrying and 15 kg deadlift capacities, and ROS2-compatible software, positioning it for cost-effective general-purpose deployments.
Detailed Analysis

Next-Gen IRON
Bipedal Mobility & Balance
Next-Gen IRON achieves a maximum walking speed of 7 km/h (1.9 m/s), surpassing Jupiter's 3 km/h (0.83 m/s), due to passive toe degrees of freedom and bionic spine for fluid, human-like strides. Both robots maintain balance via IMU, gyroscope, and force sensors, but IRON's taller 178 cm frame and higher speed suit dynamic navigation. Jupiter's lighter 60 kg build aids stability in confined household spaces. IRON's design draws from XPENG's autonomous driving tech for superior terrain adaptability. Jupiter prioritizes steady, slower movement for safety in service roles.

Jupiter
Dexterity & Manipulation
Next-Gen IRON features hands with 22 degrees of freedom each, enabling precise 1:1 human-sized manipulation for tasks like doorknob turning, supported by 82 total DoF and bionic muscles. Jupiter offers over 40 total DoF with comparable arm capacities but lacks specified hand-level detail. Both handle 5 kg per arm carrying, yet IRON's advanced shoulder dynamics and flexible skin enhance grip feedback. This gives IRON an edge in delicate industrial handling. Jupiter suffices for routine chores requiring basic grasping.

Next-Gen IRON
AI, Autonomy & Learning Capabilities
Next-Gen IRON operates at full autonomy using a second-generation VLA model and three Turing chips at 2,250 TOPS for on-board vision, language, and action without teleoperation. Jupiter is semi-autonomous, relying on ROS2-compatible software with Python APIs for structured environments. IRON's multi-model AI (VLT, VLA, VLM) supports real-time learning from human settings. Jupiter requires more human oversight for complex decisions. IRON excels in unsupervised research platforms.

Jupiter
Payload & Lifting Capacity
Both robots match at 5 kg carrying capacity per arm and 15 kg deadlift maximum, suitable for light industrial or household loads. Next-Gen IRON's bionic structure may distribute forces better during dynamic lifts. Jupiter's specs align directly without noted variances. No differences in torque or endurance are specified. These capacities limit both to non-heavy-duty tasks.

Next-Gen IRON
Battery Runtime & Power Efficiency
Next-Gen IRON uses all-solid-state batteries, prioritizing safety and density for continuous operation. IRON's lightweight design enhances efficiency at higher speeds. Both avoid runtime-per-charge specs, focusing on multi-year lifespans. Solid-state tech in IRON reduces thermal risks.

Jupiter
Real-World Use Cases (Industrial vs General Purpose)
Next-Gen IRON targets customer guidance, sales assistance, industrial inspection, research, and healthcare, leveraging full autonomy for varied professional settings. Jupiter focuses on household chores, research simulation, front-of-house service, and elderly assistance, suiting semi-autonomous home use. IRON's speed and AI fit factory monitoring. Jupiter's lower price aids service deployments. Overlap exists in research platforms.

Next-Gen IRON
Sensor Suite & Vision Systems
Next-Gen IRON includes RGB cameras, stereo cameras, LiDAR, ultrasonic, IMU, gyroscope, force, temperature, and skin-embedded touch sensors, plus millimeter wave radar. Jupiter has RGB cameras, stereo cameras, LiDAR, IMU, gyroscope, force, ultrasonic, and temperature sensors. IRON adds touch for interaction feedback. Both enable 360-degree perception. IRON's suite supports advanced collision avoidance.

Jupiter
Which robot is better for industrial manufacturing?
Next-Gen IRON outperforms Jupiter in industrial manufacturing with 7 km/h speed, full autonomy, and 2,250 TOPS compute for inspection and handling in dynamic factories. Jupiter's semi-autonomy and slower pace limit it to lighter service tasks. IRON's bionic design handles repetitive precision better. For manufacturing, select Next-Gen IRON.

Next-Gen IRON
Which offers superior autonomous capabilities?
Next-Gen IRON provides full autonomy via VLA models and on-board AI, reducing teleoperation needs compared to Jupiter's semi-autonomous mode. Jupiter requires supervision for unstructured tasks. IRON processes vision-action loops independently. Jupiter suits guided operations. Choose Next-Gen IRON for high autonomy.
Capabilities & Operational Tasks
Head-to-head comparison of what Next-Gen IRON and Jupiter can do, their applications, and capabilities.
What Can Next-Gen IRON & Jupiter Do?
85 tasks listed for both, 3 only for Next-Gen IRON, 0 only for Jupiter.
Technical Specifications
Next-Gen IRON and Jupiter differ on 29 of the 34 specifications listed for both.
Manipulation & Load Capacity
3 Comparative Metrics
Kinematic Architecture & Dexterity
3 Comparative Metrics
Energy & Power Management
7 Comparative Metrics
Frequently Asked Questions
What is the deadlift and carrying capacity of Next-Gen IRON by XPENG versus Jupiter by Zeroth?
Both Next-Gen IRON by XPENG and Jupiter by Zeroth offer 5 kg per arm carrying capacity and 15 kg maximum deadlift.
How does the autonomy level of Next-Gen IRON by XPENG compare to Jupiter by Zeroth for enterprise deployment?
Next-Gen IRON by XPENG achieves full autonomy with VLA AI, while Jupiter by Zeroth is semi-autonomous requiring oversight.
Which humanoid robot has higher walking speed and better locomotion stability?
Next-Gen IRON by XPENG reaches 7 km/h with bionic balance; Jupiter by Zeroth is limited to 3 km/h.
What are the dexterity and hand manipulation capabilities of these humanoid robots?
Next-Gen IRON by XPENG has 22 DoF hands for precise tasks; Jupiter by Zeroth specifies 40+ total DoF.
Is Next-Gen IRON by XPENG suitable for industrial inspection and healthcare support use cases?
Yes, Next-Gen IRON by XPENG supports industrial inspection, customer guidance, sales assistance, research, and healthcare.
Can Jupiter by Zeroth handle household chores and elderly assistance deployments?
Yes, Jupiter by Zeroth is designed for household chores, front-of-house service, research simulation, and elderly assistance.
Which is lighter, Next-Gen IRON or Jupiter?
Jupiter is lighter at 60 kg, compared with 70 kg for Next-Gen IRON.
Verdicts reflect our research and opinion. Confirm specifications with the manufacturer before buying.



