Fourteen years of Model S history came off the factory floor in under seven weeks. What replaced it is Tesla's biggest and riskiest bet yet.
Some factory stories are about machines. This one is about a decision. When I first saw the time-lapse Tesla posted in July, what stayed with me wasn't the excavators or the dust. It was the speed. Anyone who has covered the auto industry knows that retiring a production line is normally a slow, almost sentimental process. Tesla did it in a month and a half, and then filmed it like a victory lap.
So let's slow down and look at what actually happened, what Tesla has confirmed since, and what still hasn't been proven.
What Tesla actually tore down
The line in question is the original assembly line for the Model S sedan and Model X SUV at Tesla's Fremont, California factory. Tesla took over that plant from Toyota and GM in 2010. The Model S went into production there in 2012, and the Model X followed in 2015. Between them they carried Tesla from a niche brand to something the whole industry had to react to.
On July 10, 2026, the official Tesla Manufacturing account on X posted a short video with a simple caption: "End of an era: Decommissioning the original Model S & X assembly line in just 46 days." The footage shows heavy machinery pulling up concrete trenches, robotic equipment being carted out, and crews setting rebar for fresh flooring.
Ashok Elluswamy, who leads Tesla's AI work, replied that Optimus had "big shoes to fill." Fair enough. Those shoes built hundreds of thousands of cars.
- Teardown time: 46 days, after the final Model S and X left the line in early May 2026
- Location: Fremont, California factory
- Model S built: 2012 to 2026 (about 14 years). Model X: 2015 to 2026
- Still built at Fremont: Model 3 and Model Y
- Replacing it: Optimus humanoid robot production, long-term target of 1 million units a year
Why Tesla killed the Model S and Model X
It wasn't a surprise, though the speed of the follow-through was. On the Q4 2025 earnings call on January 28, 2026, Elon Musk said it was time to bring the S and X programs to an end "with an honorable discharge." He tied it to a company that is, in his words, moving toward an autonomous future, and said he expected to stop production the following quarter.
The numbers explain the logic. The Model S started around $95,000 and the Model X around $100,000, and both sold in small volumes. Tesla had even stopped reporting them separately, lumping them in with the Cybertruck under "other models." Meanwhile the Model 3 and Model Y made up roughly 97% of Tesla's 1.59 million deliveries in 2025. The flagships were a rounding error on the sales chart and a large piece of prime real estate on the factory map.
The timeline, in order
| Date | What happened |
|---|---|
| 2012 | Model S production starts at Fremont |
| 2015 | Model X joins the line |
| Jan 28, 2026 | Musk announces the end of Model S and X on the Q4 2025 earnings call |
| Early May 2026 | Final Model S and Model X vehicles are built |
| May to June 2026 | The 46-day teardown of the old line |
| Jul 10, 2026 | Tesla Manufacturing posts the decommissioning time-lapse on X |
| Oct 21, 2026 | Tesla's Q3 report says Optimus production began on high-volume lines at Fremont |
What goes in the empty space: Optimus
Optimus is Tesla's humanoid robot. The version heading into production is Gen 3, the first one designed from the start to be manufactured in volume. Reports describe a hand with 22 degrees of freedom, double the previous generation, and a new in-house AI chip planned for later.
Building one is nothing like building a car, and Musk has said so himself. Early output, he warned, would be extremely slow, because Optimus has roughly 10,000 unique parts and there is no existing humanoid-robot supply chain to lean on. Tesla has also said the line will be modular, made of several sub-assembly lines rather than one long conveyor, and heavily automated.
The targets are enormous. Tesla's long-term plan is 1 million robots a year from the converted Fremont space. A separate, larger factory is being built at Gigafactory Texas, designed for a long-term capacity of 10 million a year and expected to come online around summer 2027.
Where things stand now (as of November 1, 2026)
This is the part many headlines skip. In its Q3 2026 report on October 21, Tesla said Optimus production began on its high-volume lines in Fremont, calling the robots coming off the line its first production-quality units. The status was listed as "Early Ramp." On the earnings call Musk called it early production and said the ramp would be slow and "somewhat bumpy."
Coverage of the call also reports Musk saying the Fremont line is designed for 20,000 robots a week, with that rate expected around the end of 2027 at the earliest, and that first deliveries to outside companies could come around then, mainly for industrial work. Tesla has not announced a price. The long-term target Musk has floated is roughly $20,000 to $30,000 per robot at full scale.
| Claim | Status |
|---|---|
| Model S and X line dismantled in 46 days | Confirmed by Tesla's own video and multiple outlets |
| Optimus production started at Fremont | Confirmed in Tesla's Q3 2026 report, listed as "Early Ramp" |
| 1 million robots a year at Fremont | Long-term target, not current output |
| 10 million robots a year in Texas | Long-term target, factory under construction |
| Optimus available to buy | No price or retail date announced |
A note on the early "mass production" stories
If you went searching earlier this year, you may have run into articles saying Optimus Gen 3 was already in mass production in January, even claiming over a thousand robots on the Fremont floor. I wouldn't lean on those. Tesla's own October wording, "first production-quality" units on a high-volume line, points to a pilot phase before that. When a company's official language and a pile of secondhand blogs disagree, I go with the company filing.
The money question nobody can dodge
Tesla reported that profit fell about 43% in the third quarter, even as the company talked up Optimus, robotaxis and a record-strong demand story for its cars. Spending on AI and robotics is heavy, and Tesla has pointed to roughly $20 billion in capital spending this year. Investors are being asked to fund the robot future while the car business pays the bills.
There's also a basic distinction that gets blurred constantly: capacity is not production. A line designed for a million units a year says what the equipment could do at full speed. It says nothing about how many robots have actually been built, and Tesla hasn't released unit numbers.
My take, as the reporter on this story
I've covered enough Tesla timelines to be careful with them. Dates tend to slip, and "next year" is practically a house style. But I don't think the 46 days was a stunt. You don't destroy a profitable, if small, product line and spend weeks clearing a factory floor unless you've already decided there's no going back.
What bothers me is the missing proof. We have a video of demolition, which is easy to film, and we have no public count of robots built, no price, and no customer list. Until those show up, Optimus is a very expensive promise. A believable one, maybe, given Tesla's record of building things people laughed at. But still a promise.
For long-time Model S fans, I'll say this: it's okay to feel something. That car changed what people thought an electric car could be. Whatever Optimus becomes, it has a lot to live up to.
What it means for Tesla owners and buyers
- If you own a Model S or X: your car isn't going anywhere. Service and support for cars on the road continue.
- If you wanted a new one: factory production is over, so you'd be looking at whatever inventory remains.
- If you drive a Model 3 or Model Y: nothing changes. Those lines keep running at Fremont.
- If you're watching Tesla as an investor: the thing to track is reported output and any outside orders for Optimus, not demolition videos.
The bottom line
Tesla took out the line that made it famous in 46 days and put a robot factory in its place. The demolition is confirmed. The start of early Optimus production is confirmed. Everything after that, the 1 million a year, the 10 million in Texas, the $20,000 to $30,000 price tag, is still a goal on a slide.
The next few quarters will tell us whether Fremont becomes the birthplace of a new industry or the most expensive empty floor in the car business. Newszest will keep tracking the numbers as Tesla reports them.
Frequently asked questions
How long did Tesla take to tear down the Model S and Model X line?
Tesla said it took 46 days to decommission the original Model S and Model X assembly line at Fremont. The final cars were built in early May 2026, and Tesla's manufacturing account posted the time-lapse on July 10, 2026.
Why did Tesla end the Model S and Model X?
Elon Musk announced it on January 28, 2026, linking it to Tesla's shift toward autonomy. The cars sold in small numbers, and Tesla wanted the floor space for Optimus humanoid robots.
Has Tesla started building Optimus robots at Fremont?
Yes. Tesla's Q3 2026 report, released October 21, 2026, says Optimus production began on high-volume lines in Fremont. Tesla lists the ramp as early, and Musk expects it to be slow and bumpy.
How many Optimus robots will Tesla make?
The long-term goal is 1 million a year at Fremont and 10 million a year at a planned Texas factory. These are targets. Tesla has not published how many robots it has built so far.
Are the Model 3 and Model Y affected?
No. Both continue to be built at Fremont. They accounted for about 97% of Tesla's 1.59 million deliveries in 2025.
When can people buy an Optimus robot?
There is no retail date or price yet. Coverage of the Q3 call says Musk expects first deliveries to outside companies around the end of 2027, mainly for industrial work. His long-term price target is roughly $20,000 to $30,000.
Can I still buy a new Model S or Model X?
Not from the factory line, since production ended in May 2026. Any new units depend on leftover inventory. Cars already on the road continue to be supported.