Tesla Begins Installing First Optimus Production Line at Fremont Factory

Tesla has begun installing its first Optimus humanoid robot production line at its Fremont, California factory, converting space once used for Model S and Model X assembly into a dedicated robotics manufacturing area. The strategic transition marks a major structural shift as Tesla expands beyond traditional electric vehicles and into large-scale humanoid robot production.

The company’s first-generation Optimus line is engineered to target an annual capacity of 1 million units, though initial output will ramp slowly due to the line's immense complexity involving over 10,000 unique parts. Low-volume assembly is scheduled to officially commence by late July or August 2026 after high-end vehicle production completely winds down at the site.

Tesla is not starting its operations from scratch. More than 1,000 units of the Optimus Gen 3 humanoid platform are already active internally across various company facilities. These units provide vital testing, validation, and real-world performance data collection, effectively transforming active automotive manufacturing plants into real-time proving grounds for automated systems.

Tesla’s long-term robotics footprint extends well beyond California. The firm is also preparing a second-generation manufacturing layout at Gigafactory Texas, targeting an output capacity of 10 million units per year. Together, both advanced industrial sites underscore a massive corporate bet on scalable bipedal automation.

Elon Musk first introduced the general-purpose humanoid concept in 2021, aiming to build systems capable of managing dangerous, repetitive, or boring operational tasks. The current production deployment confirms that Tesla is shifting from early conceptual prototypes toward industrial manufacturing execution, even as major hardware integration challenges remain.