Tesla workers resist training Optimus robots as replacements

Tesla faces production challenges in its pivot from electric vehicles to humanoid robots, driven by complex hardware and employee pushback. The Information reports that workers at the company's Fremont, California factory are resisting training for the Optimus humanoid robot, which Tesla intends to deploy as a replacement for human labor. This friction complicates the scaling of mass production for the general-purpose robot. Tesla CEO Elon Musk has positioned AI and robotics as the core of the company's future. During Tesla's second-quarter 2026 earnings call, Musk described Optimus as potentially "the biggest product ever." However, he acknowledged that creating an autonomous humanoid capable of handling diverse tasks is "one of the hardest things to solve." The Information's reporting highlights specific technical hurdles, particularly regarding the design of complex robot hands. These complications arise as Tesla attempts to transition from prototype development to full-scale manufacturing. The shift has already impacted existing vehicle production. As of May 2026, the Fremont factory stopped manufacturing the Model S sedan and Model X SUV. The company has redirected both line workers and engineers from these vehicle lines to work on Optimus development.