Tesla clears Fremont Model S/X line for Optimus production
Tesla is converting Fremont factory space that built Model S and Model X into capacity for Optimus, its general-purpose humanoid robot. In early July 2026, company channels showed the old S and X assembly line coming down. Tesla's later quarterly update said those lines had been decommissioned and that first-generation Optimus lines were being installed.
The shift matches a plan Tesla laid out in January: end S and X production and put that space toward Optimus. It is factory conversion news. It is not a consumer order path for a home robot.
The conversion plan
On Tesla's fourth-quarter 2025 earnings call on January 28, 2026, CEO Elon Musk said the company would wind down and stop Model S and Model X production in the following quarter. He said the Fremont space for those cars would become an Optimus factory. The long-term goal he stated for that space was about 1 million Optimus units a year. Musk also said Optimus needs a new supply chain, so the ramp would take longer than for products that reuse existing parts networks.
Tesla's Q4 and FY 2025 Update pointed the same way. The company said it was preparing the first production line, with start of production planned before the end of 2026 and eventual planned capacity of 1 million robots per year. Gen 3 Optimus is described as the first design meant for mass production. California Optimus was listed under manufacturing as Construction, without an installed capacity number.
What is visible at Fremont
On July 10, 2026, Tesla Manufacturing (@gigafactories) posted video of the original Model S and Model X assembly line being taken down. The caption said the decommissioning took 46 days.
On July 1, Musk posted a photo with the line "Walking the Optimus production line in Fremont". The same day he said early Optimus production would be extremely slow because everything is new — and that it is not like making a car.
A larger Gen 3 line was already on the public roadmap before the S and X teardown. On November 6, 2025, @Tesla said a pilot Optimus line was running at Fremont and that a significantly larger Gen 3 line was coming in 2026. The company said it was testing Optimus in factories and offices. It also stated a goal of $20,000 COGS per robot at scale — cost of goods sold, not a consumer list price.
Tesla's Q2 2026 Update, posted after the July teardown posts, states that construction at Fremont for Optimus began after the Model S and X lines were decommissioned, with anticipated production later in 2026. The same update says Tesla has decommissioned those manufacturing lines and is installing first-generation Optimus lines, where it expects to start production soon. Initial Optimus builds, the update says, will be used in Tesla's Optimus Academy for training data collection and further functionality development. California Optimus remains listed as Construction. The update also lists Texas Optimus as Construction, with site development at Gigafactory Texas described as under way.
Tesla's Fremont factory careers page describes Fremont as a hub for Model 3, Model Y and Tesla Optimus production. Fremont is not being emptied of car work in the materials that cover this shift. The conversion story is the S and X floor space, not a plant shutdown.
What is not public yet
Optimus remains in development as a volume product and as a consumer home machine. Tesla has shown pilot work, line construction and planned capacity. The Q2 2026 Update's "soon" / later-this-year language is a company timeline for factory production, not a household delivery schedule.
As of September 4, 2026, Tesla has not published a firm weekly or monthly Optimus output rate for Fremont. It has not opened a general consumer path for households to order and receive a home Optimus. It has not published a consumer home price, deposit program or household delivery schedule.
The $20,000 figure remains a company COGS goal at scale, not a list price. The 1 million units a year figure remains an eventual planned capacity goal from earlier IR materials, not a current run rate. Some secondary coverage has floated calendar start windows; those dates are not used here unless Tesla states them on a primary channel.
What this means for a household
A household cannot buy or order Optimus as a general consumer home product from the Tesla materials opened for this report. There is no public waitlist, deposit or delivery window for a home unit. The news is that Tesla is installing Optimus production lines in Fremont space that used to build Model S and Model X.
Company materials describe Optimus as a general-purpose humanoid robot. Factory and office testing is a company claim. The Q2 2026 Update says early builds are for Tesla's Optimus Academy — training data and further development — not for doorstep chore robots. That is not the same as a household being able to take delivery.
What a household still cannot budget from public Tesla pages: a retail price, a ship date to a home, or a weekly output number that would show volume production has started. $20,000 is a cost-of-goods goal at scale, not a sticker price. 1 million a year is a long-term capacity goal, not robots Tesla is selling to homes today.
Optimus remains in development. Announcement, construction and "production soon" in a factory update are not a consumer shipping program.
Go deeper
- Tesla Q2 2026 Update (PDF) — S/X decommissioning, Optimus line installation, Academy use of early builds
- Tesla Q4 and FY 2025 Update (PDF) — Construction status, Gen 3 language and 1 million/year planned capacity
- Tesla Manufacturing decommissioning post on X (July 10, 2026) — Model S and X line teardown video
