Last reviewed
May 11, 2026
Sources
18 citations
Review status
Source-backed
Revision
v1 · 6,233 words
Add missing citations, update stale details, or suggest a clearer explanation.
The Wuji Hand is a five-finger dexterous hand developed by Wuji Tech, a Chinese robotics company based in Shanghai and Shenzhen. The first generation was publicly unveiled on 18 September 2025 and went on sale to research and humanoid integrators shortly afterward. The hand has 20 active degrees of freedom, with four independently controlled joints in each of its five fingers, and uses direct-drive rotary micro-actuators embedded inside the finger phalanges rather than tendons routed back into a forearm. Wuji Tech describes the design as an attempt at a "dual breakthrough" in cost and performance for the dexterous-hand layer of embodied AI systems. [1][3]
The Wuji Hand drew wider attention in May 2026 when Genesis AI, the Khosla Ventures and Eclipse backed robotics startup, revealed that Wuji Tech was the manufacturing partner for its proprietary Genesis Hand 1.0, the end-effector used in the GENE-26.5 demonstrations of cooking, smoothie preparation, piano playing, and Rubik's cube manipulation. [4][13]
| Field | Value |
|---|---|
| Product name | Wuji Hand (first generation) |
| Manufacturer | Wuji Tech (Shanghai Wuji Technology Co., Ltd. and Shenzhen Wuji Technology Co., Ltd.) |
| Public release | 18 September 2025 |
| Active degrees of freedom | 20 (4 per finger) |
| Fingers | 5, fully opposable thumb |
| Self-weight (excluding cables) | 580 g ± 10 g |
| Dimensions | 201 mm by 75 mm by 50 mm |
| Fingertip force | 15 N |
| Static whole-hand grasping load | 10 kg |
| Single-finger hook-grip load | 3 kg |
| Drive | Self-locking rotary direct-drive joints with FOC vector control |
| Control frequency | 1000 Hz across all 20 axes |
| Communication interface | USB 2.0 Type-C (proprietary protocol; documentation also references RS485 and EtherCAT variants) |
| Maximum grasping diameter | 100 mm |
| Idle grip life | At least 300,000 cycles |
| Operating voltage | 12 V to 20 V DC |
| Shell material | Aluminium alloy |
| Ingress protection | IP40 |
| Target market | Humanoid robotics, research, teleoperation, embodied AI data collection |
| Website | https://wuji.tech |
The Wuji Hand is sold as a stand-alone end-effector intended to bolt onto a robot arm flange, a humanoid robot forearm, or a desktop research rig. Its defining design choice is that every actuator lives inside the hand itself. Each finger acts as a small, self-contained robot: four direct-drive rotary motors run through field-oriented control, drive each interphalangeal joint, and report joint state back at 1 kHz over a single USB Type-C link. There are no tendons and no remote drive pack tucked into a forearm. [1][3]
Wuji Tech grew out of Pan Motor (sometimes rendered Pan-Motor), a Shanghai motor maker whose F-Series compact servo achieves about 8 N·m of peak torque at roughly 200 grams. That motor lineage is the reason direct drive was even an option: the company packs miniaturised versions of those actuators into a hand that weighs 580 g and is about 20 cm long, roughly the size of an adult human hand. [8][10][11]
The first generation reveal in September 2025 generated coverage on Humanoids Daily, Sidecar AI, and Perplexity AI Magazine, with most analysis focusing on the choice of direct drive over tendons. By April 2026, Wuji Tech had released a documented C++ and Python SDK, a ROS 2 driver running at 1 kHz, hardware design files in STEP format, and a teleoperation stack supporting the MANUS data glove, HTC Vive Trackers, and the PICO 4 headset. In May 2026, Genesis AI demonstrated the Wuji-manufactured Genesis Hand 1.0 alongside a $105 million seed round, citing 3 ms end-to-end control latency and biomimetic 1:1 human proportions as the reason it could collect human-glove data and replay it on a robot with little retargeting. [2][3][4][5][13]
Within the wider field of high-DOF dexterous hands, the Wuji Hand sits between research-grade tendon hands such as the Shadow Robot Hand and the in-hand actuated thumbs being explored by Tesla and Figure. It has fewer DOF than 22 DOF tendon hands like the Linkerbot LinkerHand L30 or the Tesla Optimus Gen 3 hand, but trades that off for a fully actuated joint set with no coupling, embedded actuators, and a quoted whole-hand grasp load of 10 kg. [6][7][12]
Wuji Tech traces its corporate history to Shanghai Wuji Technology Co., Ltd., which was registered on 15 March 2019 with Pan Yunzhe as legal representative and majority shareholder. The Shanghai entity began as a motor R&D house and built a portfolio of compact joint motors and dexterous-hand actuators. It completed a Series A in August 2023 and a Series A+ in November 2023, backed by Zhuiji Power and ZhenFund among others, and by 2024 it held 21 invention patents and 14 trademarks. The company opened a wholly-owned subsidiary, Shenzhen Wuji Technology Co., Ltd., in 2024 to handle hardware industrialisation. [11]
The parent motor business, Pan Motor, supplied the actuator know-how. Pan Motor's F-Series compact servo motor, rated at roughly 8 N·m peak torque in a 200 g package, is the basis for the micro-actuators inside the Wuji Hand. The Pan-motor.com domain now redirects to wuji.tech, reflecting the consolidation of the brand. [10][11]
Wuji Tech officially unveiled the first generation Wuji Hand on 18 September 2025. The reveal post on the company's X account, mirrored by RoboHub, listed the headline figures: 20 active degrees of freedom, four DOF per finger, weight under 600 g, fingertip force around 15 N, static grasping load near 10 kg, durability validated past 300,000 cycles with internal runs over one million cycles, and a hand that survives an approximately 80 cm drop test thanks to a twist-lock impact-resistant adapter. Coverage from Humanoids Daily on 19 September 2025 confirmed those figures and added the Shenzhen design centre and Pan Motor parentage. [1][2]
Throughout late 2025 and early 2026 Wuji Tech expanded the software side. The GitHub organisation wuji-technology opened wujihandpy, a C++ core with Python bindings under the MIT licence, reaching version 1.6.0 by 27 April 2026. wujihandros2, the ROS 2 Humble driver, exposed 1000 Hz joint state publishing and a real-time control interface. wuji-hand-teleop added teleoperation through MANUS gloves, HTC Vive Trackers, the PICO 4 headset, and the company's own Wuji Glove. CAD, URDF, and MuJoCo description files were released in wujihand-hardware-design and wuji-hand-description. [5][14]
On 6 May 2026, TechCrunch broke the news that Genesis AI, the Paris and California based startup founded by Zhou Xian and Théophile Gervet, had revealed its first robotics foundation model, GENE-26.5, demonstrated on a humanoid platform with a fully five-fingered hand. Genesis AI initially described the hand as proprietary. The next day, Humanoids Daily reported that Wuji Tech was the hardware manufacturer behind the unit, which Genesis AI renamed the Genesis Hand 1.0 to highlight that it was a custom variant rather than the off-the-shelf Wuji Hand. The custom variant added a soft-contact palm and finger covering, 1:1 human-scale proportions, a back-drivable design, and a proprietary control middleware achieving 3 ms end-to-end latency. [4][13]
The Wuji Tech homepage as of May 2026 lists two products under "Hand": the original Wuji Hand and a future "Hand 2", alongside the Wuji Glove data-acquisition platform. Public details on Hand 2 are limited to the navigation entry on wuji.tech. [8]
The official specification table, published in Wuji Tech's English product documentation at docs.wuji.tech, lists the following values for the first-generation Wuji Hand. [3]
| Category | Parameter | Value |
|---|---|---|
| Structure | Active degrees of freedom | 20, four per finger |
| Structure | Finger configuration | Fully opposable thumb, supports lateral swing |
| Structure | Kinematic configuration | Serial direct-drive rotary joints, no nonlinear kinematics |
| Structure | Maximum grasping diameter | 100 mm |
| Dimensions | Self-weight (excluding cables) | 580 g ± 10 g |
| Dimensions | Outer dimensions | 201 mm by 75 mm by 50 mm |
| Dimensions | Four-finger length | Approximately 157 mm per finger |
| Dimensions | Thumb length | Approximately 130 mm |
| Drive | Drive mode | Self-locking rotary direct-drive joints |
| Drive | Control algorithm | FOC vector control |
| Control | Control frequency | 1000 Hz across 20 axes |
| Control | Communication interface | USB 2.0 Type-C |
| Control | Control mode | Position control |
| Control | Communication protocol | Proprietary (self-developed) |
| Control | Communication rate | 480 Mbit/s (theoretical) |
| Load | Fingertip force | 15 N |
| Load | Single-finger hook-grip load | 3 kg |
| Load | Whole-hand static grasping load | 10 kg |
| Load | Whole-hand hook-grip load | 10 kg |
| Load | Whole-hand vertical grasping load | 5 kg |
| Load | Maximum hanging weight | 5 kg |
| Dynamic | Minimum opening and closing time | Approximately 0.3 s |
| Dynamic | Repeat opening and closing speed | At least 2 cycles per second |
| Dynamic | Thumb flexion / lateral swing speed | At least 100 rpm |
| Dynamic | Four-finger bending time | Approximately 0.25 s |
| Precision | Positioning repeatability | ± 1 mm |
| Precision | Backlash | ≤ ± 7 mm |
| Lifespan | Idle grip life | At least 300,000 cycles |
| Electrical | Operating voltage | 12 V to 20 V DC |
| Electrical | Standard power adapter | 12 V 20 A |
| Electrical | Static current | 1 A |
| Electrical | Maximum current | 35 A |
| Electrical | No-load average current | 2 A |
| Materials | Shell material | Aluminium alloy |
| Materials | Ingress protection | IP40 |
A few specification numbers require unpacking. The 580 g figure refers to the dry skeleton without cables. With the standard USB cable and external power line attached the assembled mass is closer to 0.9 kg, the figure cited by retail-facing coverage on Gadgetify and HumanoidGuide. The hand is therefore lighter than typical tendon-driven dexterous hands that pull cables back into a forearm housing, but slightly heavier than a stripped-down two-finger gripper. [1][9]
The 1000 Hz control frequency applies to the whole 20-axis ensemble, not a single channel. Wuji's documentation notes that the link is a USB 2.0 connection at 480 Mbit/s theoretical throughput, which is what makes the simultaneous high-rate feedback for all 20 joints viable on a single cable. Independent reviews, including the RoboHub thread and Sidecar AI, report the hand as having "approximately 1 kHz" feedback bandwidth, which is the same value rounded. [1][2][3][12]
The 300,000 cycle figure is the factory shipping criterion. Wuji Tech states that internal test rigs have run individual hands past one million open and close cycles. The protection rating is IP40, meaning the hand resists solid objects larger than 1 mm but is not sealed against liquids or fine dust. [1][3]
The drop test that has been quoted in press coverage at roughly 80 cm refers to an integrated test of the impact-resistant adapter, the twist-lock mounting structure that connects the hand to a robot arm flange. Wuji Tech engineered the adapter to release under impact loads above a safety threshold and let the hand drop free, suspended only by a safety chain, instead of transmitting damage upstream into the arm or downstream into the hand joints. Press has reported the survivable free-fall distance at roughly 80 cm; the official documentation describes the mechanism qualitatively rather than quoting a fixed centimetre figure, so the exact number should be treated as a press-derived estimate. [1][3]
Each finger contains four serial rotary direct-drive joints. The official anatomical mapping is CMC1, CMC2, MCP1, MCP2, PIP, and DIP. The thumb uses two carpometacarpal axes (CMC1 abduction and adduction, and CMC2 lateral swing) plus two interphalangeal axes (MCP and PIP), giving it a wide motion envelope of about 100 degrees abduction or adduction, 80 degrees lateral swing, and 130 degrees flexion or extension per phalanx. Each of the four remaining fingers carries one MCP flexion or extension axis with about 125 degrees of travel, one lateral swing axis with about 60 degrees of travel, and two more flexion or extension axes with about 130 degrees of travel each. The four-finger module is dimensionally consistent: each finger is roughly 157 mm from the carpal base to the distal phalanx tip. The thumb is shorter at approximately 130 mm, but compensates with a wider rotation envelope. [3]
The choice to allocate four DOF per finger, including the thumb, is itself a design decision worth dwelling on. Human hand kinematics involve roughly 27 DOF if every joint and the wrist are counted, with the thumb alone owning five distinct rotational and translational axes around the carpometacarpal joint. Wuji's solution is to compress the thumb's natural complexity into two CMC axes plus two flexion axes, identical in count to the other fingers. That symmetry simplifies firmware, simulation, and training pipelines, but it is also the source of the most common criticism of the design: the hand cannot reproduce the subtle thumb pronation that humans use during tasks such as tying shoelaces or twisting a key. [6]
The maximum grasping diameter, listed at 100 mm, is the largest cylindrical object the hand can wrap fully. A 5 kg payload limit applies when the hand grasps in a vertical pose (the load axis aligned with gravity), while the 10 kg whole-hand load is reserved for hook-grip postures where the fingers form a load-bearing hook rather than a wrap. Whole-hand hanging weight (the load the hand can suspend in a static hook before motor torque limits are reached) is rated at 5 kg. The single-finger hook grip is rated at 3 kg, which means a single finger held in a clenched hook can support a 3 kg load against gravity. [3]
The internal structure rejects the more common tendon-and-pulley approach used in hands such as the Shadow Robot Hand or the Tesla Optimus design. There is no nonlinear kinematics in the joint train and no coupled DOF, which the company refers to in its documentation as "no nonlinear kinematics, fully actuated". Sidecar AI describes the consequence well: "direct-drive actuation remains predictable and consistent. You can simulate it reliably, then deploy it with confidence," because the joint state corresponds one-to-one with a measured motor angle and a known reducer ratio. [3][12]
The shell is machined aluminium alloy. The skeleton is built around a four-bar style flexion linkage and parallelogram abduction linkage. Cabling between phalanges is implemented with flat flex circuits routed through the joint axes to survive repeated flexion. The thumb is mounted on a backward inclined CMC that allows pulp-to-pulp opposition with the index, middle, and ring fingers, although hand surgeon Gustav Andersson, commenting in Humanoids Daily, observed that the thumb tip contacts the little finger "with the side of the thumb's tip, not pulp-to-pulp," and that the design lacks the subtle thumb rotation needed for actions like tying a shoelace. [6][7]
The impact-resistant adapter, supplied as a standard accessory, uses a twist-lock and slot locking structure with screws. Under normal vibration or minor knocks, the adapter holds the hand rigid. When forces exceed the safety threshold, the joint releases and the hand drops onto a safety chain, which protects the joints, motors, and reducers inside the hand and the joints of any robot arm above it. Wuji's documentation explicitly states that the mechanism is tuned to avoid false triggering under routine operation. [3]
An RGB status LED on the lower back of the hand reports the operating state: green flashing for standby, green solid for connected, yellow solid for warnings such as high temperature or power fluctuation, red flashing for impending fault, red solid for critical fault, and blue solid during firmware update. [3]
The Wuji Hand uses dual encoders on every joint. Reporting by Digital Habitats and the RoboHub thread describes 20 output encoders and 20 input encoders, which together allow the controller to measure both motor side and joint side angle. That arrangement lets the firmware estimate joint torque without a dedicated load cell, since deflection between motor and joint encoders maps to applied torque through the known mechanical stiffness of the reducer. [2][9]
The control loop runs FOC vector control at 1 kHz per axis. Position is the exposed control mode at the SDK level; position commands and joint state publish over USB 2.0 with a proprietary framing protocol at up to 480 Mbit/s. There is no built-in fingertip force sensor on the base unit. Sidecar AI and Tinkimo both note that the base hand reasons about contact through positional and current feedback rather than direct tactile measurement, and that Wuji Tech has signalled plans for tactile skins as an add-on. The Wuji Glove, the companion data glove, provides external tactile capture during teleoperation rather than on-hand sensing. [10][12]
In the Genesis AI integration the closed-loop latency from gesture to actuator response was reduced to 3 ms by Genesis AI's own control middleware, layered on top of the Wuji firmware. Humanoids Daily reports this as a feature of the Genesis Hand 1.0 specifically, not the standard Wuji Hand product. [4]
The hand is rated for an operating voltage from 12 V to 20 V DC, with a recommended 12 V 20 A adapter. Quiescent current draws around 1 A, with bursts up to 35 A when many actuators accelerate simultaneously. Power and data are physically separated: communication is on USB Type-C, and power is on a dedicated XT30 connector mounted on the wrist. [3]
Wuji Tech's choice of position control as the only exposed control mode is unusual for a high-DOF dexterous hand. Many tendon-driven competitors expose either current control or torque control to give operators a direct handle on grip strength. The Wuji Hand instead relies on the closed-loop position controller running internally at 1 kHz and on the deflection signal between input and output encoders to infer applied torque. In practice this means an integrator wanting precise force control needs to either use the deflection signal to estimate joint torque externally or to add a tactile skin on top of the hand. The published API documents synchronous, asynchronous, and unchecked write modes, which differ in whether the SDK blocks until the hand confirms a command. The real-time controller exposes a target trajectory that the SDK interpolates smoothly between sample points, which is the recommended mode for sub-millisecond control loops driven from a host PC. [3][5]
The minimum opening and closing time of approximately 0.3 seconds, paired with a sustained two cycles per second open-and-close rhythm, suggests the actuator chain is sized for continuous operation rather than for short impulsive motions. Thumb flexion or lateral swing tops out at about 100 rpm, which is comparable to the per-joint angular velocity of a small industrial servo. Four-finger bending completes in about 0.25 seconds. These figures put the Wuji Hand toward the conservative end of the speed scale next to the Linker Hand L30's quoted 450 degrees per second core-joint slew rate, but well above the speed needed for typical pick-and-place and tool-use tasks. [3][16]
Wuji Tech publishes most of its software stack on GitHub under the organisation wuji-technology (with a separate Wuji-Technology-Co-Ltd repository hosting an older standalone Python SDK). The main libraries are MIT licensed and target Linux, with Ubuntu 22.04 as the supported reference platform. [5][14]
| Repository | Description | Language | Last update (2026) |
|---|---|---|---|
| wujihandpy | C++ core with Python bindings for the Wuji Hand SDK | C++ / Python | 9 May |
| wujihandros2 | ROS 2 Humble driver, 1000 Hz joint state publisher, RViz visualisation | C++ | 7 April |
| wuji-hand-teleop | Real-time teleoperation with MANUS, Vive Tracker, PICO 4, Wuji Glove inputs | Python | 28 April |
| wuji-retargeting | Hand pose retargeting using MediaPipe keypoints and inverse kinematics | Python | 27 April |
| wuji-hand-description | URDF and MuJoCo description files, meshes, RViz configs | Python | 27 April |
| wujihand-hmi | Windows and Linux real-time monitor, calibration, and debugging app | (mixed) | 8 April |
| wujihand-hardware-design | CAD files (STEP) for adapters, structural frames, and soft goods | (CAD) | 3 April |
| wuji-studio | Desktop tool for device management, visualisation, firmware upgrades | (mixed) | 6 May |
| wuji-sdk | Cross-device Python SDK for automatic discovery and real-time streaming | Python | 7 April |
The Python SDK exposes synchronous, asynchronous, unchecked, and real-time controllers, with examples for joint reads, joint writes, bulk read or write batches, threading, and disconnection handling. The wujihandpy package reached version 1.6.0 on 27 April 2026 and has 28 published releases across 248 commits on the main branch. [5]
The ROS 2 stack runs on ROS 2 Humble (Ubuntu 22.04) and provides a JointState publisher at 1000 Hz, real-time control topics, multi-hand configuration, and RViz visualisation of the URDF. The teleoperation package decouples input devices from output devices through standardised topics: gloves and trackers publish hand poses and finger angles, and the driver consumes them and writes to the actuators. Supported inputs include the MANUS data glove with its own SteamVR-based calibration tool, HTC Vive Trackers under SteamVR headless mode, the PICO 4 headset with wrist and arm tracking, and (announced) the Wuji Glove. Cameras supported on the synchronised pipeline include Intel RealSense, generic USB cameras, and StereoVR. [5]
The hand-retargeting library, wuji-retargeting, uses the open DexRetargeting algorithm to translate raw MediaPipe-style hand keypoints into Wuji Hand joint angles, with optional support for Apple Vision Pro hand tracking input. The wuji-hand-description repository ships both URDF for ROS and MuJoCo XML for physics simulation, which is what the company uses to make the "sim-to-real" argument concrete. [5]
The ROS 2 teleoperation reference stack assumes a Tianji robot arm as the carrier platform. The stack ships two controller implementations: one keyed to the SteamVR coordinate frame (used with HTC Vive Trackers under headless mode) and one keyed to the PICO 4 world frame. The single-side configuration allows a research operator to teleoperate either the left or right Wuji Hand individually, while the dual configuration ties the two hands and arms together through synchronised topics. A "Monitor GUI" written in PyQt5 provides one-click launch of any configuration, with live diagnostics on each connected device. Cameras feed into a separate synchronised pipeline that supports Intel RealSense, generic USB webcams, and StereoVR streams. [5]
Firmware updates are handled by a separate desktop tool called Wuji Studio, which doubles as a device manager and a real-time data visualiser across the whole product line (hand, glove, and any future devices). Wuji Studio runs on Ubuntu 22.04 or later. A web-based HMI tool, wujihand-hmi, runs on Windows and Linux and is intended for in-field calibration and diagnostics without needing the full Studio stack. The firmware itself can be upgraded over the USB Type-C link; the indicator LED switches to blue solid during the upgrade, and Wuji Tech instructs users not to disconnect power during this phase to avoid corrupting the bootloader. [3][5]
Wuji Tech (舞肌科技, sometimes rendered "WUJI TECH") is the trade name used by Pan Yunzhe's robotics group. The primary legal entity is Shanghai Wuji Technology Co., Ltd., registered on 15 March 2019 with Pan Yunzhe as legal representative and Chairman. The company's listed business is research and development in robotic motor technology and electronic technology services. In January 2024 the registered office moved to Jiading District in Shanghai, and a wholly-owned subsidiary, Shenzhen Wuji Technology Co., Ltd., was opened the same year to handle product industrialisation. A third subsidiary in Changzhou was registered to handle further manufacturing. [11]
Funding disclosed in Chinese filings includes a Series A in August 2023 and a Series A+ in November 2023, with reported participation from Zhuiji Power and ZhenFund. Public filings list Pan Yunzhe with about a 46.5 percent stake. As of 2024 the company held 21 invention patents and 14 registered trademarks and was recognised as a High-Tech Enterprise by the Shanghai authorities. [11]
The company sells two product lines through wuji.tech: the Wuji Hand (current generation, with a placeholder "Hand 2" listed in the navigation but not yet detailed publicly), and the Wuji Glove, an intelligent data glove introduced in late 2025 and updated through 2026. The glove carries a 24 by 32 pressure matrix totalling 526 active pressure points, five electromagnetic (EMF) tracking modules at the fingertips that deliver 6 DOF pose each at 120 Hz with under 2 mm RMS position accuracy, an 800 Hz six-axis IMU on the dorsum, and outputs a 120 FPS tactile stream over USB Type-C and Ethernet via a small acquisition board. The glove is sold as the input device for teleoperating the hand and for collecting demonstration data for imitation learning. [15]
The wuji.tech homepage carries the marketing line "Skilled in the small, steady in the subtle. Inspired by the human hand, designed for effortless motion." The careers and contact pages list Shanghai as the primary corporate address. [8]
The Wuji Glove specification deserves its own paragraph because it is the company's strategic complement to the hand. The glove's 526 active pressure points cover the palmar side of the hand at a 4 mm spatial resolution, with a pressure range of 0 to 20 N per point and 0.1 N pressure resolution. Repeatability tests on a hand mold fixture report a maximum deviation of about 6 percent across seven test zones. Press and flex life are each rated at over 100,000 cycles. The five EMF (electromagnetic field) tracking modules at the fingertips each deliver 6 DOF pose at 120 Hz, with under 2 mm RMS positional error and under 5 degrees of orientation error, and the company notes that the EMF system is sensitive to nearby ferromagnetic materials (recommended clearance: at least 3 cm). The IMU on the dorsum samples acceleration at ±16 g and angular rate at ±2000 degrees per second at 800 Hz. The glove communicates over a USB Type-C to Ethernet adapter, with a 100BASE-TX wired Ethernet link to the host PC and a separate USB Type-C cable for power. Wired motion-to-data latency is rated at no more than 10 ms. [15]
The glove's calibration routine is an eight-step procedure that optimises bone length, joint pose, and fingertip pose to produce joint angles accurate enough for direct teleoperation or for offline imitation-learning data collection. Because the glove and the hand are designed to be kinematically compatible, the company markets the pairing as a closed loop for imitation learning and vision language action model training pipelines: a human wears the glove to perform a task; the captured data is replayed in MuJoCo or directly on a Wuji Hand mounted to a robot arm; and the resulting policy is fine-tuned on a small budget of robot trials. [10][15]
The Wuji Hand is sold through direct enquiry on wuji.tech rather than at a published list price. Coverage from Perplexity AI Magazine reports a quoted range of "approximately $5,500 to $16,000 depending on configuration," with the upper end matching the price tag of $16,000 listed on the Humanoid.guide product page. By comparison, LinkerBot's L30 retails in China at RMB 99,900 (around $13,986) for a 22 DOF tendon-driven hand. Press coverage in late 2025 and early 2026 described the Wuji Hand as backordered into 2026, with deliveries weighted toward humanoid integrators rather than retail buyers. [1][7][10]
The Humanoid.guide page lists the product status as "In production. Currently not available for purchase" through retail channels, consistent with the direct-sales-only model. [1]
The most prominent public customer is Genesis AI, the robotics startup founded by Zhou Xian (CEO) and Théophile Gervet (President). Genesis AI raised a $105 million seed round announced in July 2025, led by Eclipse and Khosla Ventures, with participation from Eric Schmidt, Xavier Niel, Daniela Rus, and Vladlen Koltun. On 6 May 2026 the company unveiled its first robotics foundation model, GENE-26.5, on a humanoid platform built around a five-fingered hand. Initial coverage in TechCrunch described the hand as designed by Genesis AI in partnership with Wuji Tech. The following day, Humanoids Daily clarified that Wuji Tech is the manufacturer and that the unit being shown is a custom variant called the Genesis Hand 1.0, distinct from the off-the-shelf Wuji Hand. The Genesis variant features 20 active DOF, 1:1 human-scale proportions, a back-drivable joint design, a soft-contact palm and finger covering, and a proprietary Genesis control middleware that brings the end-to-end input-to-actuator latency down to 3 ms. [4][13]
The Genesis Hand 1.0 is used both as an end-effector on the demonstration humanoid and as the target hand for the Genesis data-collection glove, which mirrors its kinematics so that human teleoperation data can be replayed on the robot without significant retargeting. Tasks demonstrated in the May 2026 video included single-handed egg cracking, tomato slicing, smoothie preparation, two-handed piano playing, lab pipetting, and Rubik's cube solving. [4][13]
Beyond the Genesis AI integration, the Wuji Hand is bundled with Tianji robot arms in the wuji-hand-teleop reference stack, indicating an in-house arm partner. Wuji Tech has not publicly disclosed integrations with other named humanoid programmes as of May 2026. [5]
| Hand | Manufacturer | Year revealed | Active DOF | Fingers | Actuation | Approx. mass | Fingertip force | Whole-hand grasp load |
|---|---|---|---|---|---|---|---|---|
| Wuji Hand | Wuji Tech | 2025 | 20 | 5 | In-hand direct-drive rotary | 580 g (skeleton) | 15 N | 10 kg |
| LinkerHand L30 | Linkerbot | 2025 | 22 | 5 | Tendon driven, forearm motors | Not published | Not published | Not published |
| Optimus Gen 3 hand | Tesla | 2025 (announced) | 22 | 5 | Tendon, 25 forearm actuators | Not published | Not published | Not published |
| Phoenix hand | Sanctuary AI | 2023 | 21 | 5 | Pneumatic / hydraulic in-arm | Not published | Not published | Not published |
| Figure 03 hand | Figure | 2025 | 20 | 5 | Tendon driven, in-palm | Not published | Sensitive to 3 g contact | Not published |
| Unitree Dex5-1 | Unitree | 2025 | 20 | 5 | Mixed (tendon + linkage), 94 tactile sensors | Not published | Not published | Not published |
| Shadow Hand (research) | Shadow Robot | 2005 | 24 | 5 | Tendon, forearm pneumatics or motors | About 4 kg incl. forearm | Not published | Not published |
The LinkerHand L30 has two more active DOF than the Wuji Hand, includes high-sensitivity tactile sensors at the fingertips, and reaches a quoted core movement speed of 450 degrees per second with ±0.20 mm repeatable accuracy. It is priced at about RMB 99,900 in China. [16]
The Tesla Optimus Gen 3 hand has 22 DOF (four per finger plus two wrist DOF), 25 actuators per arm relocated to the forearm, tendon transmission to the fingertips, fingertip force-feedback sensors, and is intended to handle objects "as delicate as an egg or a glass vial". Public spec disclosures are limited because the hand has not been fully released for outside benchmarking. [17]
Figure's Figure 03 hand is a five-finger, 20 DOF dexterous design with fingertip tactile sensors sensitive to about 3 g of pressure. Figure has emphasised tactile sensing and compliant fingertips over raw DOF count. [18]
A running theme in expert commentary on the Wuji Hand is the choice of "in-palm" actuation. Robotics analyst Scott Walter, speaking to Humanoids Daily, said of the Wuji Hand: "they're not using tendons… they're basically like tiny little robots is what they've turned the fingers into." Hand surgeon Gustav Andersson contrasted the design with Tesla's: "they're doing the anti-version of Elon's approach of moving it all to the forearm; they'll keep it in the hand so there is no compromise." Both analysts noted that the design trades off a more anatomically perfect thumb rotation in exchange for predictable joint behaviour and a simpler simulation pipeline. [6]
The direct-drive vs tendon-driven question is a long-running debate in dexterous-hand engineering. Tendon-driven hands such as the Tesla Optimus Gen 3, the Shadow Robot Hand, and the LinkerHand L30 place actuators in a forearm housing and run small high-tensile cables through pulley networks down to the finger joints. This frees the fingers themselves to be slim and human-shaped, and lets the actuators be larger and more powerful, but it introduces cable stretch, friction hysteresis, and routing wear that complicate both simulation and field repair. Direct-drive hands such as the Wuji Hand, the Apex hand from Humanoid.guide's coverage, and recent Figure designs put the actuators inside the hand itself. The motor mass shows up on the end of the arm, increasing required arm payload, but eliminates the simulation-to-reality mismatch that arises from cable behaviour. [6][7][12]
Wuji Tech's argument, repeated in interviews and on its documentation site, is that the simulation friendliness of direct drive is a strategic advantage in the embodied AI era. With every joint backed by a calibrated motor and a known reducer, the MuJoCo model that the company ships in wuji-hand-description can be expected to mirror the physical hand to within positional repeatability. That makes large-scale reinforcement learning and policy fine-tuning cheaper, because policies trained in simulation can be deployed without an expensive sim-to-real bridge. [5][12]
The Wuji Hand's reveal was treated by the trade press as a meaningful entry rather than a one-off concept. Humanoids Daily called it "remarkably robust" in its expert round-up and described the hand as "a really good first attempt" at sim-to-real friendly dexterity. [6]
Sidecar AI argued that the choice of in-hand direct drive is the part worth paying attention to, regardless of one's interest in robotics: "More dextrous than commercial options. More robust than research prototypes. Potentially more affordable at scale." The same piece called the Wuji Hand "a wake-up call" for Western robotics programmes, pointing out that direct-drive actuation keeps the simulation-to-reality gap small because "you can simulate it reliably, then deploy it with confidence." [12]
Perplexity AI Magazine framed the launch as a step toward dexterous manipulation hardware becoming a "deployable tool, not just a research curiosity," and emphasised the price band of roughly $5,500 to $16,000 as the more interesting figure once specs converge across manufacturers. [10]
Tinkimo described the Wuji Hand as Wuji Tech's bet on vertical integration through the Pan Motor lineage and noted the explicit gap in tactile sensing on the base hand, while pointing out that Wuji has telegraphed tactile add-ons. [9]
Gustav Andersson, writing for Humanoids Daily, gave the most concrete anatomical critique: the thumb's contact with the little finger lands on the side of the thumb tip rather than pulp-to-pulp, and the wrist lacks the subtle thumb rotation needed for fine tasks like shoelace tying. Andersson's broader point was that the company's choice to put all the actuators in the hand is a deliberate inversion of the forearm-driven Tesla approach. [6]
The Genesis AI demonstration in May 2026 brought broader coverage. TechCrunch's headline framed the story as Genesis AI "going full stack," with the Wuji-built Genesis Hand 1.0 cited as evidence that the hardware layer is now treated as a coupled part of the model strategy. CEO Zhou Xian, speaking to TechCrunch, said "the model has always been the goal, because a better model means better intelligence," while President Théophile Gervet argued that the matched-anatomy hand allows the company to collect "a lot more data than was previously possible, to train a model." [4][13]