Tesla starts Optimus production in Fremont as Q3 net income falls 43%

Tesla has started building Optimus humanoid robots on a production line, and it still will not say how many. In its third-quarter 2026 update, filed with the SEC as an exhibit to an 8-K on Oct 21, the company said Optimus production began in Fremont on its high-volume lines and that the bots coming off this line are the first production-quality bots it has manufactured. It added that it will keep iterating on hardware and process but has proven that the current manufacturing process is suitable for a commercial product.

The same document shows what the robot programme costs the rest of the company. GAAP net income attributable to common stockholders fell to $787 million from $1,373 million a year earlier, a 43% drop, on revenue that was essentially flat at $28,046 million. The question for investors is whether the line in Fremont is the start of a product business or another stage of a capital programme with no disclosed output. ([MEKAWIRE explainer](/news/tesla-optimus-explained-2026-what-tesla-has-filed-1-million-robot-line-10-million-texas-plan-no-units-disclosed-20261017))

What the filing says, and what it leaves out

Tesla's capacity table now lists Optimus in California as "Early Ramp" and Optimus in Texas as "Construction". In the Q2 update the Fremont entry described lines still being installed, with initial builds going to an internal Optimus Academy for data collection. The outlook section repeats the point in one line: production has begun for Tesla Semi in Nevada and Optimus in Fremont.

The update gives no number of robots built, no weekly rate, no external customer, no price and no date for sales. Capacity figures for Optimus, which earlier updates gave as about 1 million a year for the first-generation line in Fremont and 10 million for a second-generation line in Texas, are not restated in the table; the Optimus rows carry a status but no capacity. The results call on Oct 21 is not used here because Tesla does not publish a transcript.

The money behind the robot

Operating income fell to $718 million from $1,624 million, and the operating margin dropped to 2.6%. Tesla attributed the decline mainly to higher operating expenses for super intelligence and other R&D projects, stock-based compensation including the 2025 CEO award, and SG&A, along with lower regulatory credit and energy profits. R&D spending reached $2,761 million, up 69% from $1,630 million, or 9.8% of revenue. Capital expenditure was $4,732 million in the quarter, after $5,789 million in Q2.

Tesla said it plans to reach 400 MW of training compute by year end to develop autonomy software for both vehicles and humanoid robots; Cortex 2 in Texas is now listed above 120 MW. Free cash flow turned positive again at $1,531 million and cash and short-term investments rose to $45.4 billion, so the spending is funded from the balance sheet, not from new capital.

How the claim compares with rivals' disclosed output

Tesla is late to disclosed volume. In MEKAWIRE's verified records, Unitree reported more than 5,500 humanoids shipped in 2025 in its STAR Market filings, UBTech reported 921 humanoid units sold in the first half of 2026 in its HKEX interim results, Figure said on Apr 29 that it had delivered more than 350 robots and was building one per hour, and Agility Robotics has disclosed more than $300 million of Digit orders. All of those are counts or contract values. Tesla's is a status label.