Physical AI · learn it, use it
The AI that moves.
Humanoids, robot hands, and the chips inside them — the newest research and real machines, decoded so anyone can understand and use them.
What is Physical AI?
Physical AI is artificial intelligence with a body — systems that don’t just answer questions but see, decide, and act in the real world: humanoid robots, robot hands, self-driving machines, and the chips that power them. It is where AI stops being an app and starts being a co-worker.
This page is the plain-English library: landmark research papers decoded section by section, real machines compared with real numbers, and the honest limits stated every time. No hype, no stock tips — only what stays true.
Then read this
Physical AI Explained — why a chatbot knows the cup falls but a robot doesn’t
The same four ideas, with the real systems attached
Genie 3, GR00T N1, π0 and V-JEPA 2 — what each one actually did, what the numbers mean, and the four dates that show where the field really is. No equations.
Then equip
The Physical AI Toolbox — six free simulators, the $249-to-$3,499 hardware ladder, and the honest 2026 numbers
The same four ideas, with the real systems attached
Genie 3, GR00T N1, π0 and V-JEPA 2 — what each one actually did, what the numbers mean, and the four dates that show where the field really is. No equations.
Research papers, decoded
Seven landmark 2026 papers — each one a full article: the core technique, the theory in plain words, real results, honest limits, and who should care.
Machines, priced
Real robots and real vehicles, costed against their spec sheets — with the traps stated before you pay.
Home robots, tested
The machines that already live in ordinary homes. Every price is dated, every spec is traced to the manufacturer’s own document, and the running costs — consumables, repairs, contracts — get the same scrutiny as the sticker price.
TESTED · US PRICES
22,000Pa vs 240 air watts
Two units, one marketing war
Pascals measure pressure, air watts measure power, and neither predicts what leaves your floor. Four US flagships on one page.
BUYING GUIDE
Robot or stick vacuum?
Only one of ten jobs overlaps
Housework split into ten tasks and scored for both machines. The answer is which one to buy first, not which one wins.
MACHINE FILE
Narwal Freo Z10 Ultra
18,000Pa and a 75°C mop wash
What changed generation to generation, what owners report, and three drawbacks the spec sheet leaves out.
OWNERSHIP
The sour smell is not the mop
Odor comes from three zones
Only one of the three is self-cleaning. Replacement intervals from manufacturer documents, and a fix you can do tonight.
BEFORE YOU BUY
Drain height decides it
0.4 m, 50 cm, or 1.5 m
Before you shortlist a plumbed dock, measure four things. One number eliminates most of the market for you.
AFTER THE WARRANTY
Repair costs, year three
What breaks and who pays
From 274 complaint files: sensors fail first. Warranty structures compared, and why the repair route is the real cost.
TESTED · US PRICES
Subscription vs buying
$1,079.64 over three years, and you own nothing
iRobot Select priced against buying outright — plus the supplies plan that costs more than the supplies.
TESTED · US PRICES
Window robot, or hire a pro?
The break-even doubles when you look closely
A 10-window visit runs $160–$200. But most US windows have exterior screens — so the robot only replaces the cheap half.
TESTED · US PRICES
Smart speakers in 2026
The hardware is $99. The assistant is not.
Alexa+ is $19.99 a month and free with Prime. That single fact decides more than any spec comparison in this category.
TESTED · US PRICES
Serving robots, the real bill
$399 a month, down from $999
Leases fell 60% in five years. Yet 73.3% of surveyed operators said nothing changed — and the reason is measurable.
Chips & companies
How the semiconductor world actually stacks up — read from filings, margins, and the numbers companies won’t print.
30-second tour · what this page is for
Robots, priced honestly.
- Home robots, real prices — What a vacuum or mower costs after the promo ends.
- Papers, decoded — Landmark robotics research in language you can read on a phone.
- The chip side — Read from filings, so you see the industry, not the press release.
Where this came from
Before a machine can move an object, something has to decide what to do. That decision layer — agents that plan and execute — is the Agentic AI library.