Tesla starts Optimus production in Fremont, but customers wait until late 2027

Tesla said on October 21, 2026, that Tesla Optimus production has begun in Fremont, California, on high-volume lines in the space that once built the Model S and Model X. The robot has moved from stage demos to a factory line. The catch came on the earnings call: Elon Musk said outside customers should get robots only around the end of 2027, Electrek reported.

What Tesla actually announced

Two sentences in the shareholder letter carry the news. "Optimus production began in Fremont on our high-volume lines," Tesla wrote. "The bots coming off this line are the first production-quality bots that we have manufactured."

The letter goes one step further. Tesla says it has "proven that the current manufacturing process for Optimus is suitable for a commercial product," even as it keeps changing the hardware. Its factory table now lists Optimus in California as "Early Ramp" and a second Optimus site in Texas as "Construction."

Read the other way, the claim is telling. If these are the first production-quality bots, then every Optimus Tesla showed before this quarter was a prototype.

A car line rebuilt for robots

The Fremont move was announced in January. On January 28, Musk said Tesla would end the Model S and Model X, its oldest cars after the original Roadster, and replace their line "with a 1 million unit per year line of Optimus," as CNBC reported. He added that "there's really nothing from the existing supply chain that exists in Optimus."

By the second quarter, the old lines were gone. Tesla's Q2 letter said the first Optimus builds would go to an internal "Optimus Academy" to collect training data, not to customers. That is still the plan, and it explains the gap between "production" and "delivery."

How fast will Tesla Optimus production ramp?

Slowly, by Musk's own account. He called this "early production" and warned the ramp would be "somewhat bumpy because it is such a radically new product," according to TechCrunch. He still claimed Tesla can reach 20,000 robots a week by the end of 2027.

The design is not frozen yet, and Musk said so plainly. "There's still some things we need to tweak about the design, because you need to deliver a robot that is safe and reliable and has long duration, so it can't, like, wear out after a month," he said on the call.

Electrek, which covered the call in detail, reports the remaining work in three parts:

• Hands. Musk called the hand the main issue: fingers soft enough for delicate objects that still survive constant wear. A Tesla engineer added custom gears as a reliability concern.
• AI. Tesla has no robot fleet collecting data the way its cars do. So it plans to build 10,000 to 20,000 robots and have them practice tasks in the Optimus Academy.
• Chips. Tesla plans to put its AI5 chip into Optimus around April 2027.

Why the Optimus news did not lift the quarter

Robots are a cost line today, not a revenue line. Revenue was flat at $28.05 billion, against $28.10 billion a year earlier, according to Tesla's letter. Net income fell 43% to $787 million, which TechCrunch puts down to spending on AI and Optimus plus fewer regulatory-credit sales.

Cars still pay the bills. Tesla delivered 486,532 vehicles in the quarter, about 6,000 more than in the second quarter but fewer than a year earlier. So the robot bet now runs on a business that is not growing.

Is anyone ahead of Tesla Optimus?

Musk says no. "There is no one that is even close to Tesla" on a general-purpose humanoid, he told analysts, as Electrek reports. The same report says two rivals look at least as far along.

Boston Dynamics, owned by Hyundai, has been building its electric Atlas since January. It says all of its 2026 Atlas deployments are already committed, including to Google DeepMind. In China, XPeng switched on a production line for its IRON robot in Guangzhou in September and targets mass production by the end of 2026. XPeng has not shipped IRON to a paying customer yet.

There is also a promise to check soon. Musk said Tesla will post an Optimus video within a month or two showing tasks that are not pre-programmed. He argued that many humanoid demos look impressive but only replay scripts.

What it means if you build with AI

We read Tesla's letter against the TechCrunch and CNBC reports, and the dates line up: a January decision, a decommissioned line by summer, first production-quality robots in October. What strikes us is the bottleneck. It is no longer the factory. It is the same thing that limits AI agents on a screen: handling messy, unscripted tasks.

That part of the stack runs on the same building blocks as the software in our catalog, from computer vision tools to the models behind them. Our October state of AI tools tracks how fast that layer is moving. Our report on OpenAI taking frontier training offline shows the other side: labs keeping capable systems on a short leash while they learn.

What to watch next

Three dates matter. First, the unscripted Optimus video Musk promised within a month or two. Second, the AI5 chip around April 2027. Third, the first external Tesla Optimus deliveries, now aimed at about the end of 2027. Electrek counts several earlier targets that slipped.