Optimus enters production on a converted car line
~ 2026-08 Tesla — Fremont, California
Optimus entered production at Fremont in late July/August 2026, in the floor space vacated by the Model S and Model X lines — Tesla tore those down in about 46 days after the last cars were built in early May. Musk had committed to the timing on the Q1 2026 earnings call and afterwards described the ramp as painfully slow, calling this year's rate "literally impossible to predict" given roughly 10,000 unique parts on an entirely new line. Treat the start, not the scale, as the fact here: Tesla has never published an Optimus production count, no per-unit figure has been disclosed for Fremont, and outside estimates of about 1,000–1,200 units across Fremont and Giga Texas are unconfirmed by the company. In late September The Information reported a rate, still not from Tesla: a few dozen units a week in Q2 rising to several hundred a week by August, with managers aiming for a continuous automated line above 1,000 a week by year end and an eventual 20,000 a week. The same reporting described the hand and forearm — more than 100 screws and small parts — as still assembled by hand, and most units as used internally for testing, training and data collection; those working in Tesla factories are confined to controlled, supervised areas on specific tasks, and Tesla acknowledged the robots remain far from general-purpose work.