Tesla's dedicated Optimus robot factory at Giga Texas is growing visibly, with construction reaching 400 to 450 feet in width as of July 20, yet the company has not disclosed any actual production numbers despite months of development work. Aerial footage shows the facility expanding in both directions daily, with ground preparation work underway on the southern end, signaling that the final footprint is still being enlarged. Meanwhile, Tesla faces mounting investor scrutiny ahead of its July 22 earnings call, where shareholders are expected to demand clarity on how many Optimus units have actually been built.

Why Is Tesla Building Two Massive Optimus Factories?

Tesla's robotics ambitions require unprecedented manufacturing scale. The Fremont facility, which ended production of the Model S and Model X in May 2026 after 14 years, is being converted into an Optimus assembly line with a designed annual capacity of up to one million units at full build-out, using roughly 40 sub-lines. The Giga Texas facility under construction is targeting an eventual capacity of 10 million units per year, though it is not expected to come online until 2027.

Tesla VP Lars Moravy has described the new Fremont line as a modular system designed to adapt as Optimus hardware evolves, so the company will not need to overhaul manufacturing each time the robot's design changes. Tesla's official production target for 2026 is 50,000 to 100,000 units, though reports circulating around July 10 claimed Tesla had directed suppliers to scale to 1,000 units per week by September, rising to 2,000 to 2,500 per week by year-end. Those figures, however, originate from unverified supplier communications rather than Tesla disclosures.

What's Holding Back Optimus Production Right Now?

The technical and supply-chain challenges facing Optimus are far more complex than traditional automotive manufacturing. Optimus requires approximately 10,000 unique components, each presenting its own sourcing and assembly hurdles. The robot's 40-plus servo motors each require 50 to 100 grams of high-performance neodymium-iron-boron permanent magnets, specifically dysprosium- and terbium-doped variants capable of maintaining magnetic properties at high operating temperatures. Each robot requires approximately 3.5 kilograms of these magnets total, a figure cited by industry analysts.

The geopolitical dimension adds another layer of uncertainty. China controls more than 90% of the processing and production of these rare-earth materials at every stage of the supply chain. In April 2025, China imposed export controls requiring licenses for seven rare-earth elements, including dysprosium and terbium. Elon Musk disclosed the impact directly on the Q1 2025 earnings call, describing a "magnet issue" and stating that Tesla was "working with China to resolve" it. A partial diplomatic resolution led China to partially resume exports in summer 2025, but the current pause on restrictions expires November 10, 2026, leaving the structural dependency unresolved.

Optimus Gen 3 also introduces a new silicon layer. The robot will be the first deployment of Tesla's AI5 chip, built on Samsung Foundry's 2nm process at its Taylor, Texas facility, which carries approximately five times the memory bandwidth of the prior generation. The AI5 tape-out at Samsung completed in early July; engineering samples are expected in Q4 2026, with volume production following in 2027. The chip will reach Optimus before it reaches Tesla's vehicles, with Cybercab shipping on AI4 hardware and AI5 vehicle deployment a 2028 story at the earliest.

How to Understand Tesla's Optimus Production Timeline

• Official Timeline: Production was stated to start in "late July or August" at the Fremont facility on the Q1 2026 earnings call in April, though Musk called the pace "literally impossible to predict" given the 10,000 unique components and entirely new production line with no established supply chain.
• Verification Gap: The most recent independent reporting with a named source, from The Information in mid-2025, put cumulative Optimus builds at a few hundred units total, and on the Q4 2025 earnings call in January, Musk acknowledged that existing Optimus units were "primarily for learning, not productive tasks".
• Supply Chain Complexity: Unlike traditional automotive production, which assumes an established supplier ecosystem built over years, Optimus is starting without one, making standard production ramp models inapplicable.

The silence from Tesla on production numbers is the most telling fact heading into Wednesday's earnings call. Tesla's Q2 2026 delivery report, published July 2, contained no Optimus unit count. Figures circulating on social media claiming tens of thousands of deployed units have no identifiable source, and a Technology.org analysis published July 18 found that "widely circulated claims of tens of thousands of deployed units do not survive contact with actual company filings".

What Does This Mean for Tesla's Valuation?

The disconnect between Tesla's market valuation and its automotive fundamentals has become impossible to ignore. Tesla, Inc. is valued as an option on its Optimus humanoid robot project, not as a traditional automaker. Optimus could disrupt global labor economics, offering sub-$2 per hour automation and driving large-scale industrial reshoring, according to investment analysis. ARK Invest's expected value case places Tesla at $2,600 by 2029, a projection driven primarily by its robotaxi assumptions but one that assumes Optimus adds meaningful scale in later years.

Morgan Stanley's new lead analyst Andrew Percoco, who replaced Adam Jonas and immediately downgraded Tesla to Equal Weight, applies a 50% probability discount to the Optimus program's $60-per-share valuation contribution, a signal of how much execution risk the Street now assigns to claims that have not yet been tested against a production line. The July 22 earnings call is therefore not just a financial update; it is the first credible checkpoint at which Tesla will either substantiate or further defer the most consequential unverified claim in American industrial technology right now.

Nearly 300 shareholder questions have been submitted for the July 22 call through Tesla's Say Technologies platform, which weights submissions by the number of Tesla shares behind each question. The tone of the most-upvoted submissions reflects a shift in investor patience, moving away from broader strategic questions toward demands for concrete production data. The factory expansion at both Fremont and Giga Texas is real and substantial, but until Tesla discloses actual unit production numbers, the gap between infrastructure investment and commercial reality will remain the defining story of the Optimus program.