11 · The mind
The data engine
Where robot training data comes from, what each kind costs per hour, who is collecting it at scale, and why the data that matters most comes from robots failing at real work.
Language models learned from text that already existed. Robot models need recordings of a body moving through the world, with every camera frame matched to the joint motion that followed, and almost none of that existed. So every serious robot company now runs a data business: headsets and handheld grippers, crowds filming their own hands, simulated robots, and fleets whose mistakes get fed back into the model. Raw collection is getting cheap fast. Data from robots doing paid work, and failing at it, stays scarce.
The data gap in numbers
Text models had about 300 trillion tokens on the web for free; GPT-4 alone trained on about 13 trillion estimate. Robots need something the web does not hold: synchronised joint angles, gripper forces, camera frames and the task being attempted, recorded while a body handles real objects. The largest open pool, Open X-Embodiment, is about 1 million trajectories from 22 robot types and 34 labs verified. Practitioners put the gap bluntly: "you're never going to teleoperate your way across."
Real
A training example for a robot policy is an observation paired with the action that followed: images, joint angles and gripper state at time t, and the joint targets commanded at t+1 through t+k. Video of a human has the observation and no robot action. Simulation has both but with approximate physics. Only a real robot, driven by a person or by its own policy, produces both on the exact body that will use them. That on-body, action-labelled layer is what is scarce.
ELI5
You can learn what a good tennis swing looks like from YouTube. You cannot learn how hard to grip the racket from YouTube, because the video never shows the squeeze. Robots need the squeeze: which motor pushed how hard, right then. The only way to record that is to have a robot body doing it.
The data pyramid
The industry answer is a pyramid, formalised by NVIDIA's GR00T program. Use huge cheap data at the bottom to teach the model what things are, and spend scarce robot data at the top to teach it how to move. In GR00T N1 the real robot layer was about 50,000 demonstrations against about 780,000 synthetic trajectories and about 3 million human video clips, so the action-labelled layer was about 1.7% of the base verified Mar 2025. The model borrows meaning from the base and learns motion from the top.
| Layer | Example | Cost per hour | What it teaches |
|---|---|---|---|
| Web video and text | Internet, via the pretrained backbone | free | What objects and words mean |
| Human egocentric video | Figure Index, Build AI, Ego4D | $2 to $60 | How hands approach and handle things |
| Simulation and world models | Isaac Lab, GR00T-Dreams | GPU time | Balance, walking, visual variety; about 8 simulated samples equal 1 teleop sample |
| Handheld UMI | TRI used 32 h in its LBM mix | low | Gripper paths without a robot present |
| Teleoperation | ALOHA, VR rigs, Chinese training grounds | $36 to $150 | Exact actions on the exact body |
| Deployment and interventions | 1X takeovers, π*0.6 corrections | paid by the work | What goes wrong in the real world, and the fix |
The data pyramid is how labs reason about mixing human video data, simulation data and real-robot data. Synthetic data from world models is the fastest-growing slice: GR00T-Dreams made 780,000 trajectories in 11 hours verified Jun 2025. Its limit is the same as simulation's: pictures and motion synthesise well, force and contact do not.
Teleoperation: puppeting the robot
The gold-standard source is a person driving the robot while every sensor records. Each recorded attempt at a task, from start to finish, is an episode, and a good one becomes a demonstration. The equipment is a teleoperation rig, and there are four families.
- 1Leader arm with a handle 主臂
- 2Follower arm with the real gripper 从臂
| Method | How it works | Cost | Who uses it |
|---|---|---|---|
| Leader-follower arm | You move a small copy of the arm; the real arm mirrors each joint | GELLO under ~$300 in parts; ALOHA ~$20k; Mobile ALOHA ~$32k unverified | Stanford, Google DeepMind (ALOHA 2 data for Gemini Robotics) |
| VR headset | Hand tracking in a headset drives the robot's arms and hands | Headset $500 to $3,500 estimate | 1X Expert Mode, many Chinese data centres |
| Motion capture suit or exoskeleton | A worn suit or rigid frame maps your whole body onto a humanoid | $80 to $150 per hour all-in estimate; Tesla advertised up to $48/h for operators in 2024 unverified | Tesla until mid-2025, Chinese training grounds |
| UMI gripper | A handheld gripper with a wrist fisheye camera; you do the task yourself, no robot present | Low hundreds of dollars unverified | TRI (32 h), many labs; the pattern behind wearable capture |
Throughput is the problem. A novice operator produces 8 to 12 usable episodes an hour, a trained one 25 to 40 estimate. Single-arm simple tasks pass buyer checks 90% of the time or more; two-arm ALOHA-style work passes 70 to 85% estimate. Real-robot teleoperation, fully loaded with rig and staff, runs about US$72 to US$145 an hour in China and US$90 to US$150 in the US unverified. The average price of teleop data on a target robot fell from about US$340 an hour in early 2024 to about US$136 by late 2025 unverified.
Real
Teleoperation data is on-embodiment: the logged actions are the exact joint commands this robot can execute, synchronised with its own cameras. That makes it the highest-fidelity input for post-training and the most expensive. It scales linearly with operator-hours, which is why every lab uses it for fine-tuning and none can use it alone for pretraining.
ELI5
It is like recording a piano teacher's hands on the exact piano the student will play. Perfect lessons, but you pay the teacher by the hour, and a teacher can only play so many songs a day.
Human video: the 2026 pivot
In August and September 2026 the biggest labs demoted teleoperation from main fuel to fine-tuning and bet on cameras worn by people. Egocentric video, filmed from the worker's own eyes, shows hands approaching and handling objects. It has no robot actions, but hand pose tracking gives an approximate label, and it is cheap and diverse.
| Collector | What | Scale | Terms |
|---|---|---|---|
| Figure Index | Phone app plus supplied hardware; people film their own chores | 16M+ uploads from 108 countries by launch on 25 Aug 2026; 44,000 weekly contributors; about 35 minutes of footage every second verified Sep 2026 | Paid about US$15M so far, about US$0.94 per upload derived; privacy policy lets Figure sell personal data to commercial buyers, with opt-out |
| Build AI | Custom head-mounted glasses on factory workers | Egocentric-10K: 10,000 h, 2,138 workers, 16.4 TB verified. Egocentric-100K: 100,000+ h from 14,228 workers "across Southeast Asia"; about 1M h by Apr 2026 unverified | 10K set is Apache 2.0 on Hugging Face, gated |
| Generalist AI | Low-cost wearables on humans | 500,000+ h by Apr 2026, adding 10,000+ h a week company claim | Proprietary |
| Dyna Robotics | Head-camera video with 3D hand tracking as action labels | 1M+ h behind Dyna-2 (Aug 2026) | Proprietary |
| Tesla | Workers in 5-camera helmet and backpack rigs, replacing mocap suits and VR in mid-2025 | not public unverified | Proprietary |
| Ego4D, EgoDex | Academic egocentric sets from Meta and 13 universities; Apple Vision Pro hand tracking | ~3,670 h; ~829 h unverified | Research licences |
Does it work? The labs say yes, with their own numbers. Dyna-2's scores rose from 20% to 28% to 45% to 53% as its human video grew from 1,000 to 10,000 to 100,000 to 1 million hours across 14 tasks company figures. Figure says pretraining on Index lifted Helix 2.5 from 9% to 56% in 30 unseen homes, using half the task-specific robot data company figures. The skeptic's case, from robotics researcher Robert Griffin: video lacks the physical interaction signal that teleoperation captures unverified. Both can be true. Video teaches the approach; robot data still teaches the squeeze.
Prices are collapsing. Crowd phone video goes for about US$2 to US$5 an hour at the low end, dense-labelled wearable capture for US$25 to US$60 estimate. When Figure, Tesla, Build AI and Generalist run their own capture in over 100 countries, a new vendor selling raw human video competes with its own buyers.
China's training grounds
China turned data collection into public infrastructure. Local governments build a training ground, a hall of staged kitchens, factory lines and care rooms, buy robots from local makers and hire people to teleoperate them all day. Companies build their own data factory on the same model: AgiBot's 4,000 m² facility with 100 robots and 3,000+ staged objects produced the AgiBot World dataset of 1 million trajectories and 2,976 hours verified.
| Centre | City | Opened | Size and output |
|---|---|---|---|
| First humanoid data training centre | Shijingshan, Beijing | Apr 2025 | 3,000 m² verified |
| China's largest, co-built with Leju Robotics | Shijingshan, Beijing | Oct 2025 | 10,000+ m²; about 200 instructors and 100 humanoids; 16 scenarios; 6M+ data points a year verified |
| Kylin Training Ground 麒麟训练场 | Pudong, Shanghai | Jan 2025 | 100+ robots of many brands, planning 1,000 by 2027 verified |
| Hubei centre | Hubei | 2025 | about 100 humanoids verified |
| Jiangxi, Guangxi, Sichuan centres | 2025 | bought UBTech robots worth RMB 566M, about US$80M verified | |
| National total | Dec 2025 | 40+ state centres announced, about two dozen operating verified |
Output per robot is modest: about 4 hours of training data per robot per day, and 100 robots handle about 12,000 collection tasks a day at the Beijing site verified Apr 2026. China Mobile alone ordered RMB 124M (about US$17.6M) of robots from Unitree and AgiBot for this kind of work. Analysts told Rest of World there are "some potential bubbles" verified Jan 2026. A national standard for embodied-AI dataset quality, YD/T 6771-2026, takes effect on 1 Nov 2026 verified. The training grounds are also part of why China buys most of the world's humanoids: many are bought to generate data.
The data flywheel
The top of the pyramid fills itself once robots are working. Deploy a robot, let it run, have a person take over remotely when it gets stuck, log the takeover, retrain on it, ship the better model, repeat. That loop is the data flywheel, and each takeover is an intervention.
Who runs one today:
- 1X. When NEO's onboard model gets stuck, a remote 1X employee in the US drives it through VR, with the owner's approval per session. Every session becomes training data. Autonomy at launch is guided at 60 to 70% contested; the figure circulates with no primary source.
- Dyna Robotics. A reward model watches robot video, labels successes and errors automatically, targets error-recovery data and updates the model nightly verified.
- Apptronik. Apollo 2 fleets collect data at a ~90,000 sq ft "Robot Park" in Austin and at Robot Parks inside Google DeepMind, Mercedes-Benz and GXO, mixing teleop and autonomous runs verified Jun 2026.
- Skild AI. Bought Zebra's robotics unit, including Fetch mobile robots, in April 2026: a brain company buying a fleet because data needs real robots working verified.
Why failures are the most valuable data
A demonstration shows the robot one way to succeed. A failure data record shows it the situations where its current model goes wrong, which is exactly where the next improvement lives. π*0.6 trains on expert corrections during its own runs; π0.7 trains on autonomous data including failures, labelled with how well each attempt went verified.
Real
A policy trained only on successful demonstrations never sees its own error states, so small deviations compound. Intervention data is collected in exactly the states the current policy reaches and mishandles, paired with the corrective action. That targets the distribution shift that limits imitation learning. The value depends on synchronisation: the camera frames, joint states, commanded actions and task context at the moment of failure, captured on the same robot and model version.
ELI5
A student who only reads worked answers keeps making the same mistake. A student whose teacher marks her own wrong answers and shows the fix improves fastest. The robot's own mistakes, with the fix attached, are the marked homework.
Repair records and lab failure data are different things. Every lab loop above runs on the lab's own robots, with synchronised camera, joint and action streams recorded at the moment of failure. A repair ticket reads "left wheel tangled, 21:40, table 12". It carries none of that. Makers already stream telemetry home: Unitree's G1 connects to servers in China within seconds of power-up and reports about every 5 minutes; Pudu sends operation logs and images to its China servers verified. No public price exists for third-party failure logs verified Sep 2026. The buyers who do lack data are insurers and lessors pricing robot risk blind, which the reliability chapter covers.
Data operations
Collecting is half the job. The rest is turning raw recordings into something a training run can load.
- Episodes. One attempt, start to end, stored as time-aligned streams: each camera, joint positions, commanded actions, gripper state, the instruction text and a success flag.
- Annotation. Labelling segments ("grasp", "lift", "place"), marking success and failure, writing the instruction. Humans charge about US$0.25 to US$1.00 per episode; vision-language models assisting cut that to US$0.05 to US$0.10 estimate. A 5,000-hour annotated egocentric corpus costs about US$150,000 to US$200,000 estimate.
- Formats. Hugging Face's LeRobot format is the open default for small arms; its community had 487 datasets and 10M frames by June 2025 verified. Google's RLDS format underlies Open X-Embodiment unverified. Converting between formats is routine glue work.
- Storage. Video dominates. Build AI's 10,000 hours of 1080p head-camera video is 16.4 TB, about 1.6 GB per hour derived. A robot with three cameras produces several times that per hour of work.
- Quality control. Buyers reject episodes with dropped frames, unsynchronised streams, failed grasps marked as success or faces in view without consent. First-pass acceptance is the number that decides whether a collection business makes money.
Ownership, licences and privacy
Data rights are set by contracts and a few laws, and they vary by where the robot sits.
- Licences. Open sets range from Apache 2.0 (Build AI's Egocentric-10K, gated) to research-only licences (Ego4D) unverified. Read the licence before a commercial training run.
- Contributor consent. Figure's Index privacy policy lets it sell contributors' personal data to commercial buyers, with an opt-out verified Sep 2026. Expect regulators to look at crowd capture.
- The EU Data Act. Users of connected products can get their raw product data free and send it to a third party such as an independent repairer. Derived data is out of scope, and the recipient may not use it to build a competing product verified.
- Singapore. The Personal Data Protection Act (PDPA) governs personal data, which covers identifiable faces and voices in robot camera and microphone streams. No Singapore or ASEAN law gives anyone access to robot operating data unverified. In practice, access depends on the contract with the maker or distributor, and on whether logs sit on servers in China or Singapore.
Where Southeast Asia fits
Southeast Asia has cheap, skilled labour and time zones next to China, so it looks like a natural data base. Some of that is already taken. Build AI says its 100,000-hour set came from factory workers across Southeast Asia unverified. Roborax already markets egocentric capture and teleoperation pods in Manila and Cebu. The labs that buy data now collect their own at global scale.
Crypto shows up here too. PrismaX raised an US$11M seed led by a16z's crypto fund to sell data from browser teleoperation of robot arms, with no operator, hour or buyer numbers public; BitRobot pays tokens for robot missions; Reborn claims 5,000 motion capture suits shipped raises verified. The best-measured token project in the region, Auki, earned about US$109,288 of on-chain revenue in 12 months against about US$371,000 a year of token incentives verified Sep 2026. Stablecoin payouts to remote operators are a real cost saving in the Philippines, and crypto is illegal as a means of payment in Indonesia and Vietnam verified, so wages there go through licensed local converters.
Raw collection is a commodity. Crowd video trends toward cents per clip. What keeps a price: teleoperation on a specific robot at US$40 to US$150 an hour, force and touch data, and deployment data from robots doing paid work. The last one needs robots in the field, which is a fleet or a service business before it is a data business.
Terms in this chapter
| English | 中文 + pinyin | ELI5 | Real definition |
|---|---|---|---|
| Data collection | 数据采集(数采)shùjù cǎijí (shù cǎi) | Recording robots or people doing tasks so an AI can learn from the recordings. | Capturing training data for robot policies: teleoperation, wearable and egocentric capture, simulation runs and deployment logs. Chinese engineers shorten 数据采集 to 数采. China had 40+ state data collection centres announced by Dec 2025. |
| Data factory | 数据工厂shùjù gōngchǎng | A big hall full of robots and operators whose only job is to make training recordings. | A dedicated facility where staged scenes, many robots and trained operators produce teleoperation data at scale. AgiBot's 4,000 m² facility with 100 robots produced 1M+ trajectories and 2,976 hours (AgiBot World). |
| Teleoperation rig | The controls a person uses to drive a robot from a distance: a headset, a copy of the arm, or a suit. | The hardware that maps a human operator's motion to a robot: leader-follower arms (ALOHA, GELLO), VR headsets with hand tracking, exoskeletons or motion capture suits, plus the recording stack. Rig cost dominates teleop data prices of US$50 to 200 per hour on a target robot (2026 estimate). | |
| Motion capture suit | 动捕服dòngbǔ fú | A suit covered in sensors that records how your whole body moves, so a humanoid can copy it. | A wearable inertial or optical tracking suit that records human joint angles for retargeting onto a humanoid, used for whole-body teleoperation and motion data. Full humanoid mocap programmes cost about US$80 to 150 per hour all-in (2026 estimate). |
| Leader-follower arm | 主从臂zhǔcóng bì | You move a small copy of the robot arm by hand and the real arm copies every joint. | A teleoperation setup where a kinematically matched (often scaled, cheap) leader arm is moved by hand and a follower robot arm tracks its joint angles, while cameras and joint states are recorded. ALOHA (about US$20k, 2023) and GELLO (under about US$300 in parts) are the reference designs. |
| Demonstration | 示范数据shìfàn shùjù | One recording of a person showing the robot how to do a task, start to finish. | A recorded episode of a task performed by a human, via teleoperation or wearable capture, used as a supervised training example for imitation learning. Operators produce 5 to 50 usable demonstrations per hour. |
| Real-robot data | 真机数据zhēnjī shùjù | Recordings made on an actual robot body, with every motor move logged. | Data captured on physical robot hardware, by teleoperation or autonomous runs, with synchronised camera frames, joint states and commanded actions. The scarcest and most valuable layer of the data pyramid; about 300,000 hours existed worldwide in 2025. |
| Simulation data | 仿真数据fǎngzhēn shùjù | Practice recordings made inside a video-game version of the world. | Trajectories generated in physics simulators such as Isaac Sim, MuJoCo or Newton, often with domain randomisation. Cheap and parallel, weaker on contact and friction; a rule of thumb puts about 8 simulated samples equal to 1 teleoperated sample. |
| Synthetic data | 合成数据héchéng shùjù | Training examples a computer made up, instead of recording them in the real world. | Data generated by simulation or generative world models. NVIDIA's GR00T-Dreams made 780,000 trajectories in 11 hours and improved GR00T N1.5 by 40% over real data alone (Jun 2025). Force and contact do not synthesise well. |
| Human video data | 人类视频数据rénlèi shìpín shùjù | Videos of people doing everyday tasks, used to teach robots what good movement looks like. | Video of humans performing tasks, from the internet or collected on purpose, used for pretraining. It lacks robot actions; labs recover approximate actions with hand pose tracking or latent-action models. The main new fuel of 2026 (Figure Index, Dyna-2, Generalist). |
| Egocentric video | 第一视角视频dì yī shìjiǎo shìpín | Video filmed from your own eyes, with a camera on your head or glasses. | First-person video from head, glasses or chest cameras that shows the wearer's hands and objects as a robot would see them. Sets include Ego4D (~3,670 h), Build AI Egocentric-10K (10,000 h) and Figure Index (16M+ uploads by Aug 2026). |
| Annotation | 标注biāozhù | Adding labels to recordings: what task this is, where each step starts, whether it worked. | Labelling episodes with instructions, segment boundaries, success or failure and quality marks. Human annotation costs about US$0.25 to 1.00 per episode; VLM-assisted about US$0.05 to 0.10 (Mar 2026 estimates). |
| Dataset | 数据集shùjùjí | A big organised collection of recordings used to train a model. | A structured collection of episodes with metadata in a loadable format (LeRobot, RLDS). Reference robot sets: Open X-Embodiment (~1M trajectories, 22 robot types), DROID (76,000 trajectories, 350 h), AgiBot World (1M+ trajectories, 2,976 h). |
| Data flywheel | 数据飞轮shùjù fēilún | Robots work, mess up, get fixed, learn from it, and work better, round and round. | The loop of deploying robots, logging their failures and human interventions, retraining on that data and shipping the improved model over the air. 1X Expert Mode, Dyna's nightly updates and π*0.6's correction training are examples. |
| Intervention | 人工接管réngōng jiēguǎn | A person grabbing the controls when the robot is about to get it wrong. | A human takeover during autonomous operation, remote or local, logged with the robot's observations and the corrective action. Interventions per hour is a core autonomy metric, and intervention data is a direct training input (π*0.6 Recap). |
| Failure data | 失败数据shībài shùjù | Recordings of the robot getting things wrong, which show the AI exactly what to fix. | Logs of unsuccessful or corrected attempts with synchronised sensors, actions and outcome labels. Labs train on it (π0.7 uses failures labelled with performance metadata), but only when captured on their own robots with full streams; a repair ticket lacks those streams. |
| Training ground | 训练场xùnliànchǎng | A government-built hall with fake kitchens and factories where robots practise and get recorded. | A Chinese state or state-backed data collection centre with staged scenarios and many robots teleoperated by staff. Beijing Shijingshan's centre (Oct 2025) has 10,000+ m², about 200 instructors and 100 humanoids; Shanghai's Kylin Training Ground plans 1,000 robots by 2027. |
| Episode | One try at a task, from start to finish, recorded as one clip. | One complete attempt at a task, stored as time-aligned streams (cameras, joint positions, actions, gripper state, instruction, success flag). The unit that datasets count, buyers accept or reject, and annotators label. | |
| UMI gripper | A handheld robot-style gripper with a camera, so a person can record demos without any robot. | Universal Manipulation Interface: a handheld parallel gripper with a wrist-mounted fisheye camera that records gripper pose and video while a human performs the task. Rig cost in the low hundreds of dollars; TRI used 32 h of UMI data in its Large Behavior Models. | |
| Data pyramid | Lots of cheap videos at the bottom, a little expensive robot data at the top, stacked to train one brain. | The layered mix used to train robot foundation models: web and human video at the base (huge, no actions), simulation and synthetic data in the middle, real-robot teleoperation and deployment data at the top (scarce, action-labelled). In GR00T N1 the top layer was about 1.7% of the base. |
Sources for this chapter
- Industry report, 28 Jun 2026: data gap, pyramid, teleop costs, DROID and AgiBot World; DROID (RSS 2024); AgiBot World arXiv 2503.06669; Open X-Embodiment arXiv 2310.08864
- NVIDIA GR00T N1, arXiv 2503.14734; GR00T-Dreams via The Robot Report, Jun 2025
- Figure Index and Helix 2.5: figure.ai; Forbes and runtimewire, Aug 2026
- Dyna-2: dyna.co/dyna-2; DYNA-1: dyna.co/research/dyna-1, siliconangle.com
- Generalist AI: generalistai.com/blog/gen-0, generalistai.com/blog/gen-1
- Physical Intelligence π*0.6: arXiv 2511.14759; π0.7: arXiv 2604.15483; Humanoids Daily: humanoidsdaily.com
- TRI Large Behavior Models: tri.global; Hugging Face SmolVLA and LeRobot datasets: huggingface.co/blog/smolvla
- Data cost estimates: roboticscenter.ai, dataxpower.com, truelabel.ai
- Beijing training centres: english.beijing.gov.cn (Apr 2025), english.beijing.gov.cn (Oct 2025); Rest of World: restofworld.org
- Unitree G1 telemetry: helpnetsecurity.com, arXiv 2509.14139
- EU Data Act: eur-lex.europa.eu
- Apptronik Robot Parks: GlobeNewswire, 30 Jun 2026
- PrismaX: therobotreport.com; BitRobot: bitrobot.ai; Auki: ownyourmind.ai; stablecoin rules: fystack.io
- Roborax teleoperation: roborax.ai
- Groundcrew research dossiers on AI software, reliability and failure data, crypto financing and Western humanoids.