Tesla Begins Deploying Optimus Gen 3 Robots in Its Own Factories at Scale
Tesla has quietly crossed a milestone that sci-fi writers have been imagining for decades: hundreds of humanoid robots are now working regular shifts on its production lines. The company confirmed this week that over 300 Optimus Gen 3 units are deployed across the Austin Gigafactory and Berlin Gigafactory, performing a range of tasks from parts sorting to quality inspection.
What Optimus Gen 3 Can Do
The third-generation robot represents a dramatic leap from the stumbling prototype Elon Musk first showed in 2022. Standing 5'8" and weighing 57 kilograms, Gen 3 moves with fluid, natural motions courtesy of 28 degrees of freedom in its body and 11 degrees of freedom in each hand. It can lift up to 20 kilograms, walk at 5 mph on uneven surfaces, and manipulate objects as small as M3 screws.
On the factory floor, the robots currently handle four primary tasks: sorting and organizing battery cells from delivery containers, carrying parts between workstations, performing visual quality inspections using their onboard cameras and AI, and packing finished components into shipping containers. Each task was taught through a combination of teleoperation (a human remotely controlling the robot to demonstrate the task) and reinforcement learning.
Economics and Scale
Tesla hasn't disclosed the per-unit manufacturing cost, but Musk has previously stated a target of under $20,000 per robot at scale — less than a year's salary for the factory workers performing equivalent tasks. Current estimates from analysts place the Gen 3 cost at roughly $30,000-$40,000 per unit, with costs expected to drop rapidly as production scales.
The robots operate in two 8-hour shifts, with a 30-minute charging break between shifts. They work alongside human employees, who handle more complex assembly tasks and supervise the robots' work. Tesla reports a 23% increase in throughput in sections where Optimus units have been deployed, primarily due to the robots' ability to work continuously without fatigue-related slowdowns.
The Broader Implications
Tesla plans to have 1,000 Optimus units deployed by year-end and is already taking pre-orders from other manufacturers interested in leasing the robots for their own facilities. The company has framed Optimus as potentially larger than its automotive business long-term — a claim that seemed outlandish two years ago but looks increasingly plausible.
The labor implications remain contentious. While Tesla insists the robots are filling positions it cannot hire for, labor advocates point out that automating factory work at this scale will eventually displace millions of workers globally. The debate is no longer theoretical — it's happening on the factory floor right now.
