Tesla began production of its Optimus humanoid robot at its Fremont, California, factory, converting manufacturing space once used for electric vehicles, the company disclosed in its Q3 2026 shareholder letter on October 212. CEO Elon Musk called it early production and said the ramp will be slow, but projected Tesla will be able to make 20,000 Optimus units per week by the end of 2027. The milestone came alongside a quarter in which revenue held flat while profitability fell sharply as the company poured capital into superintelligence research, robotics, and autonomous-driving programs1,4,9.
Tesla reported Q3 2026 revenue of $28.0 billion, roughly flat year over year and above the $27.9 billion Wall Street consensus compiled by LSEG. GAAP net income dropped 43% to $787 million, or $0.22 per share8. On a non-GAAP basis, EPS came in at $0.48, down from $0.50 a year earlier. One outlet cited adjusted EPS of $0.50 against a consensus estimate of $0.54. Operating income fell 56% to $718 million, and operating margin narrowed to 5.8% from 10.8% in the year-ago quarter. Shares slid roughly 4% in after-hours trading. Free cash flow came in at $1.53 billion, far above the roughly $4.5 billion cash burn analysts had modeled, largely because capital spending of $4.73 billion landed about $3 billion below the consensus estimate3.
Where the money went
Operating expenses climbed 39% to $4.8 billion, driven by what Tesla labeled SI (superintelligence) and other R&D projects, along with stock-based compensation and selling, general, and administrative costs. R&D spending alone reached $2.76 billion, up from $1.63 billion a year earlier. A separate tally put the overall jump at 50% to roughly $3.4 billion, attributing the increase to AI, robotics, and broader R&D. Tariffs on imported auto parts added more than $400 million in costs during the quarter. Capital expenditures more than doubled to $4.7 billion.
Optimus and robotaxi progress
Tesla described the Fremont Optimus units as the first production-quality bots it has manufactured and said the current manufacturing process is suitable for a commercial product. Musk cautioned that design tweaks remain and that there is still quite a lot of work to do with regard to the AI and the robot for it to be truly useful for open-ended tasks. Tesla previously disclosed in an SEC filing that its third-generation Optimus is production-ready[3].
Austin-based Robotaxi miles stayed flat at 380,000 during the quarter, the same figure Tesla cited on its Q2 call.
Segment breakdown
Automotive revenue declined 3% to $20.6 billion, with regulatory credit revenue falling to $113 million from $417 million a year earlier. Energy generation and storage revenue dropped 16% to $2.9 billion, which Tesla attributed partly to tariff-related customer refunds, though energy storage deployments climbed 10% to 13.7 GWh. Services and other revenue rose 33% to $4.6 billion, the quarter's standout segment7. Overall GAAP gross margin improved to 19.6%, up from 18.0% a year earlier and 16.8% in Q2.
Tesla delivered 486,532 vehicles in the quarter, down 2% year over year, and produced 464,391. Cash and investments ended September at $45.4 billion.
ANALYSIS The earnings underscore a deliberate margin trade-off: Tesla is channeling automotive cash flow into AI training infrastructure, autonomy, and humanoid robotics at a pace that compressed operating margin by nearly half. Robotaxi miles held flat at 380,000 even as operating expenses surged, and Musk's own characterization of Optimus production as early and the AI as requiring considerable further work leaves the return profile of these programs unproven at this scale of investment.