In February, BMW published the results of a pilot at its plant in Spartanburg, South Carolina. A humanoid robot made by Figure had been lifting sheet metal parts into a welding cell, ten-hour shifts, Monday to Friday.
The release is precise about what happened. The robot moved more than 90,000 components. It covered approximately 1.2 million steps. It ran for around 1,250 operating hours. Within ten months, in BMW's words, it supported the production of more than 30,000 BMW X3s.
Four numbers, and not one of them counts robots. BMW's release refers throughout to "the robot Figure 02", in the singular, and never states how many were on the floor. I went looking for that figure and could not find it in the company's own words. Secondary coverage says two. BMW does not say two, or any other number, which is why this piece will not say two either.
What travelled was the 30,000. It became a headline about physical AI's return on investment, filed under the shorthand that a fleet of humanoids had helped build 30,000 cars. The number is true. BMW published it. The thing it appears to prove, that humanoid robots are now doing meaningful volumes of industrial work, is a claim the number does not make and BMW never made either. The 30,000 is the output of a car line that was running before the robot arrived, and the figure isolates nothing the robot added to it. The release says the robot supported that production rather than performed it.
There are four separate quantities hiding behind most robot statistics, and they sit on a ladder.
A robot can be built, meaning it exists and has come off a production line. It can be shipped, meaning it has left the manufacturer and been delivered to somebody who paid for it. It can be installed, meaning it is physically in place at a site and wired into whatever it is meant to do. And it can be working, meaning it is productively doing paid work with limited routine human intervention.
The first three mostly nest, give or take a manufacturer that installs its own units without shipping them anywhere. The fourth is a different kind of question. Built, shipped and installed all ask where the robot is. Working asks what it is doing, and that drags in how much of the time, under how much supervision, at a task somebody would pay a person to do. It is a stricter line than the first three and a blurrier one, which is exactly why it is the rung that goes uncounted.
The examples are easy to feel. A robot in a crate in a warehouse has been built and shipped and is neither installed nor working. A robot in a university lab, bought so that a doctoral student can test a grasping algorithm on real hardware, has been built, shipped and installed, and is doing exactly what its buyer wanted while producing nothing anyone would call labour. A robot standing in a hotel lobby greeting guests has cleared the same three rungs, and whether it is working depends on what you think a lobby greeter produces.
The gaps between rungs are not rounding errors. Unitree, the Chinese manufacturer that ships more humanoids than anyone else, produced more than 6,500 humanoid robots in 2025 and shipped more than 5,500 of them. Those two numbers describe the same company in the same year and differ by 1,000 units. They are adjacent rungs, the closest pair on the ladder, and they still do not match.
So far this is a vocabulary problem. The next document turns it into a structural one.
On 24 June, Agility Robotics announced that it was going public through a $2.5 billion merger with Churchill Capital Corp XI. The announcement was filed with the Securities and Exchange Commission, where a materially wrong number becomes a legal exposure rather than a marketing quibble.
The robot count is in the same filing, one exhibit over, in the investor presentation. And it is a single unit figure, confined to a footnote that repeats under the same order number wherever it appears. The $300 million, the footnote says, "relates to 1,000 Digit v5 robots with three-year term RaaS contract". So there is a count, and the count is 1,000.
Read which rung it sits on. The same footnote opens by saying the figure "reflects customer orders for Digit v5, as of May 2026". 1,000 robots ordered. Not built, not shipped, not installed. Digit v5 had not launched when this was filed, so the order sits before the physical ladder even begins, a contract for robots that do not yet exist, and it is the number a company reaches for first because it arrives first and reads as traction.
Then read the clause most people would skip. The same contract "includes warrants issued to purchaser vesting proportionately to robots deployed". The buyer's upside is tied to deployment, and deployment is treated here as a separate event from the order, gated, still ahead, and never given a number. In the one document where the counting is legally accountable, the company publishes the order, structures real money around the deployment, and states the deployment figure nowhere.
The taxonomy is not my imposition on the industry. It is written into a warrant.
The gradient has a ceiling, and the ceiling arrives before the top of the ladder.
Across every source in this piece, company announcements, an SEC filing, an IPO prospectus, a trade body and the press that covers all of them, I could not find a published count of humanoid robots productively doing paid work with limited routine human intervention, the fourth rung as defined earlier. The search returned no such figure at all, from anyone. If you know of one, I would genuinely like to see it, and the claim here narrows accordingly.
None of this means the robots are not working. The BMW unit ran 1,250 hours of real work on a live production line, and Agility's orders are real money with deployment milestones written into the contract. Something is happening on the fourth rung. The claim here is only that its size is the one thing nobody has measured, while a great deal of capital and attention is priced as though the measurement had already come back large. The workforce may well be real. The number that would prove it is not yet on any page.
When the next robot figure arrives, and it will arrive this week, the question to ask is which of the four words it belongs to. Built, shipped, installed, working. The answer is usually recoverable from the original document in under a minute, and it is usually not the rung the headline implies.
Two follow-ons are worth keeping. The first is that the most expensive errors are made of true numbers, because a figure that survives fact-checking can still carry a claim its source never made, and every number in this piece is of that kind. The second is that when a company substitutes hours, sites or capacity for units, the substitution is itself information. It tells you which number that company is prepared to put its name to.
BMW's four numbers were real. 90,000 components, 1.2 million steps, 1,250 hours, 30,000 cars. The robot count was not among them, the pilot has closed, and the next one is being announced in the singular. Somewhere in that gap is the whole distance between a technology that exists and a technology that works. The first four numbers were easy to find. The one that would settle it, I could not find at all.
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