Method

How we verify

Every fact on this site carries a mark saying how sure we are, and a link to where it came from. These are the rules behind the marks.

The three marks

Confirmed: The robot's maker or the part's maker says so, a regulator filing shows it, or the part is visible in a teardown.
Likely: A good source points to it, but neither the robot's maker nor the part's maker has said it outright.
Rumoured: One unverified report. Treat it as a lead, not a fact.

No source, no fact: Nothing is published without a link to a public page that supports it.
Public sources only: Product pages, manuals, regulator filings, published code, teardowns, interviews and job postings. Never leaked or confidential material.
Anything short of confirmed says why: A fact tagged likely or rumoured states what is missing before it could be confirmed.
Our own view is labelled as ours: Part pages include strengths and trade-offs, why makers choose a part, and sometimes a price estimate. These are our analysis. They carry an "our analysis", "our read" or "our estimate" label and are never marked confirmed.
Three kinds of price: A listed price is the maker's own published price. A reported price comes from sellers or the press. An estimate is ours, given only when nobody has published one, with what it is based on.
Not disclosed is an answer: When a maker has not said what is inside, the page says so and shows where we looked. We do not guess.
Every fact shows when it was checked: Robots change. The date tells you how fresh the fact is.
Sources are saved: Web pages disappear, so a copy of each source is saved to the Internet Archive.
Changes stay on the record: When a fact is corrected, the old version stays listed on the robot's page.
Which robots are listed: Only robots you can buy, or that are working for a paying customer.

Found a mistake? Every robot page has a correction form at the bottom. Send a link that shows the right answer and we will check it.