Musk Says China's Magnet Curbs Cost Optimus Two to Three Months — “We Had Robots With No Arms.” Hands Are Still the Hard Part.

Honest fence (read first): This Optimus Bot Monday flagship is about what Elon Musk said on stage, not about new numbers. On the record: On Sat Oct 10, in a live interview with Tesla Owners Silicon Valley at the X Takeover event at Giga Texas (about 2,000 people, per Teslarati), Musk said China's export curbs on motor magnets "set back the Optimus program by like two or three months," adding: "We had robots with no arms." He called robot hands "shockingly difficult" and said the production ramp "is going to be very slow at the beginning." What's missing: Tesla has still not published an Optimus unit count. Its Oct 2 Q3 production and deliveries release has no robot line, and its latest quarterly filing talks about "preparations and investments in large-scale production." The quotes below come from Teslarati's write-up of the stream, and two other outlets match it.

Editorial Thesis

Most Optimus headlines are about scale: lines, factories, weekly targets. This one is about friction. For the first time, Musk put a length on the magnet problem and described in plain terms why the hands are so hard. That's more useful to readers than another capacity number, because it explains where the time actually goes. It is still Musk's account. It's not an audited delay, and it's not a production figure.

Honest Verdict

Believe that Musk said these things on stage. The quotes are consistent across three write-ups of the stream. Treat "two or three months" as his estimate of the delay, not a number Tesla has published. Treat "late 2027" for public availability as his stated goal. Tesla hasn't put that date in a filing. Treat the hands section as an honest engineering admission, and as a reason to expect a slow start, not a fast one.

What Musk said about magnets

• China "prevented the export of magnets for use in electric motors," and that "set back the Optimus program by like two or three months." Then: "We had robots with no arms."
• The motors that move a humanoid's arms use small permanent magnets. Musk first raised the magnet problem on Tesla's April 2025 earnings call, according to Teslarati. This is the first time he has said how long it cost.
• His fix: "You've got to be able to make all the parts domestically." He gave no timeline or supplier for doing that.

What he said about hands

• A general-purpose humanoid needs fine motor skills that are "incredibly difficult to get right. Shockingly difficult."
• "One of the hardest things also generally is to do precision and force at the same time." His example was driving a small self-tapping screw into wood, something he says no one has demonstrated yet.
• Touch sensors are another problem. It's "actually kind of hard to get touch sensors that elastically deform and can handle high cycle life and it won't just break after a few thousand cycles."
• On rival robot videos: "Any complicated looking robot demo, it's a canned demo. It's not real." His test is showing a robot something it has never seen and watching it cope.

What he said about the ramp

• "The initial part of that S curve of production ramp is going to be very slow at the beginning," partly because "unlike cars, there's no pre existing supply chain for robot stuff."
• That matches his July post on X that production "will be extremely slow at first, as everything is new."
• He has said he wants Optimus available to the public by late 2027. Tesla hasn't confirmed that date in a filing.

What Tesla has actually published

• Q3 production and deliveries (Oct 2): 464,391 vehicles produced and 486,532 delivered. No Optimus figures.
• Q2 10-Q (Jul 23): Tesla is advancing Optimus "as we make preparations and investments in large-scale production," and warns of "uncertainties inherent in establishing and ramping manufacturing operations." No unit count.
• Outside reports of several hundred robots a week in August came from The Information, not Tesla. We covered those on Sep 28.

Claim vs proof

What to watch

• Wed Oct 21, 5:30 PM ET: Tesla's Q3 call. Listen for a weekly build rate, a domestic magnet or actuator plan with a date, or a hand demo on something new.
• Any Tesla video of Optimus doing a precision-plus-force task, like driving a screw. By Musk's own test, that would be real progress.
• Whether "late 2027" shows up in a Tesla document instead of just an interview.

Video note

Tesla Owners Silicon Valley wJasRLuu_LA, "ELON MUSK INTERVIEW: X Takeover 2026, What's next for Humanity." (uploaded Oct 12, 2026, 47:09). This is the interviewer's own channel. Teslarati says the Optimus discussion starts around 49 minutes into the original stream. This edited upload is shorter, so the timestamp will differ.