Elon Musk pushed back Wednesday against speculation that Tesla Inc. is ahead of schedule on production of its Optimus V3 humanoid robot, stating in a reply on X that "Optimus production will be extremely slow at first, as everything is new. This is not like making a car." Musk was responding to an X user named Doctor Jack, who suggested Tesla may have delayed the Optimus V3 demo because the company had realized it was further ahead on production than expected. Musk’s comments align with his earlier warnings that Optimus production would follow a classic manufacturing S-curve, with slow early output followed by faster scaling. Optimus contains roughly 10,000 unique parts. Tesla has converted production space at its Fremont factory, including lines previously used for the Model S and Model X, to support initial assembly of Gen 3 Optimus robots. Pilot production is expected to begin this summer at Fremont, and a second, much larger Optimus factory is under construction at Giga Texas. High-volume production is not expected until around summer 2027, with Tesla targeting a long-term capacity of 10 million robots annually. Tesla shares were down 0.45% to $423.38 during after-market hours on Wednesday.