The engineering behind the machines. Deep dives into simulation, control systems, reinforcement learning, locomotion and everything that makes modern robots actually work — written for people who want to understand the technology, not just watch the demos.
Meet Lai Jie (来杰), founder and CEO of Astribot — a Tencent Robotics X veteran who left to build the S1, the rope-driven robot whose wine-pouring, laundry-folding demo went viral and split the internet over whether it was real. His story, the honest truth about that demo, and the $1.4 billion company behind it.
Isaac Asimov invented the Three Laws of Robotics and even coined the word "robotics" — yet no real robot actually obeys his laws. The biochemist and science-fiction master behind the most famous rules in robotics, and why working roboticists say they can't be built.
Meet Gu Jie (Alex Gu), founder of Fourier — the Shanghai company that spent a decade building exoskeletons to help paralyzed people walk before pivoting to humanoids like the GR-1, GR-2 and the GR-3 "care-bot." Backed by SoftBank and Saudi Aramco's fund.
Meet Zhao Tongyang (赵同阳), the grassroots, vocational-college founder and CEO of EngineAI (众擎机器人) — the showman who built XPeng's first humanoid, then left to make robots that do the world's first front flip and kick their own CEO on camera. His story, his robots, and the stunts behind a $1.5 billion valuation.
Meet Peng Zhihui (彭志辉), known online as Zhihui Jun (稚晖君) — the Bilibili "Wild Iron Man" who built a self-driving bicycle in his spare time, took a 2-million-yuan Huawei "Genius Youth" salary, then co-founded AgiBot, the company that shipped more humanoid robots than anyone in 2025. How a maker-celebrity became a listed-company chairman at 33.
He's not a roboticist — he's a farm kid from Illinois on his third company. Brett Adcock built and sold Vettery, took Archer Aviation public, then founded Figure AI, dumped OpenAI to build his own robot brain (Helix), and pushed it to a reported $39 billion valuation. Meet Figure's founder and CEO.
He ran the company famous for backflipping robots — and he was a national-champion gymnast who did his MIT PhD on robot somersaults. Meet Robert Playter, who turned Boston Dynamics from a viral-video lab into a business, and find out who leads it now after his February 2026 retirement.
A backflip is not a benchmark. With Atlas working a Hyundai line and China ordering thousands of real deployments, the viral-demo era is over. The five dimensions — autonomy, endurance, success rate, generalization and recovery — that separate a polished humanoid demo from a robot that can actually do a job.
The world's biggest robotics conference just wrapped in Vienna — and on the show floor, a lot of the humanoid robots were still being driven by a human with a joystick. The honest state of humanoid autonomy in 2026, and what it means for home and companion robots.
XPeng's robotics product chief, Shi Xiaoxin, resigned after 1,675 days building IRON from scratch — and days later CEO He Xiaopeng took personal control of the robotics unit. With mass production due by the end of 2026 and a robot that recently face-planted on stage, here's what the shake-up really means.
The humanoid race is really a race between a dozen very different people. Profiles of the founders and CEOs behind Tesla, XPeng, Unitree, Figure, 1X, Booster and Boston Dynamics — their backgrounds, leadership styles and the rivalries between them.
Unitree is doing a remarkable amount right — and behind it is one engineer-founder. Meet Wang Xingxing, the CEO and CTO who made robots cheap: from a low-cost robot dog built during his master's to the world's best-selling quadrupeds and the $4,900 R1 humanoid.
A child's robot can be a playmate, a comfort and a first coding teacher. Miko 3, KEYi Loona, Eilik, Cozmo and Petoi Bittle — compared on play, learning, safety and price, with what each one teaches a child and the real laws that keep them safe.
A robot pet gives you the companionship of an animal with none of the mess. From the $289 Petoi Bittle to the $2,899 Sony AIBO — the best robot pets of 2026 compared on realism, AI, battery and price, with RobotTesters scores.
You can buy a humanoid robot today — just not the one you've seen in the ads. The Unitree R1 ($4,900), G1 ($13,500) and H1 (~$90k), AgiBot X2, Booster T1 and LimX Oli EDU — the six on sale now, ranked on specs, price and RobotTesters scores.
From the chart-topping Funky Wiggle Dance to a full 360° front flip: our pick of the five skills that map what Unitree's marketplace has become — and why a robot app store is a revolution that lets developers and ordinary people earn money building skills.
No robot on Earth runs Asimov's Three Laws — and that's good. The real rules are a stack of safe hardware, coded guardrails and certification (ISO 13482, the EU AI Act, NRTL/OSHA). What matters most is how open each maker is about them.
The clinical evidence is settled. But PARO costs $6,000 and Joy for All costs $120. A guide through the four main options — what the research actually shows and how to choose the right robot for the right situation.
Unit counts tell you what a manufacturer plans to build. Factory velocity tells you whether they can. A machine-by-machine look at who's accelerating, who's holding back deliberately, and what each production strategy signals about 2027.
The first power-on is genuinely magical. The voice recognition is genuinely frustrating. Here is what two weeks with Stack-chan actually looks like — including the problem no one talks about enough.
From BMW factory floors to your living room in 28 months. How each generation of Figure AI's humanoid solved a different core problem — and what that pace of iteration means for what comes next.
Every major humanoid robot has a different answer to the same question: how should a machine think? Eight AI systems compared — from end-to-end VLA to open app stores — and what they reveal about who might win.
Degrees of freedom are the most underappreciated number on a robot's spec sheet. A look at why DOF dictates reachability, dexterity, locomotion — and ultimately what a machine can and cannot do.
Tesla, BMW, Mercedes, Hyundai, Toyota, BYD, Xpeng — they're all in. This isn't a trend; it's the logical consequence of the EV transition, factory economics, and a bet on an entirely new consumer market.
Most humanoid robot companies won't tell you what their product costs. A look at why this opacity is holding the entire industry back — and why Unitree's move to sell on AliExpress at $4,370 changes the conversation.
Dancing, obstacle courses, half marathons — when robots compete, they're not performing. They're proving something no spec sheet can. Here's why these challenges matter more than any lab demo.
Before a robot takes a single step on a factory floor, it may have walked millions of kilometres in software. A look at how simulators like Isaac Sim, MuJoCo and Genesis are replacing the real world as the primary training ground for robot intelligence.