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OpenAI is advertising a high-compensation engineering position for robot actuators, indicating a growing focus on mechanical expertise in the AI industry.
Tesla Optimus Gen 3's dexterous hand has 22 degrees of freedom and 50 actuators, far exceeding competitors (usually 6-9 degrees of freedom), demonstrating a significant technological gap.
The tweet breaks down the cost structure of humanoid robots: linear actuators ~30%, rotary actuators ~25%, dexterous hands ~20%. Actuators and hands together account for ~75% of the total BOM, with high-precision hardware still being the largest cost component.
The article examines how America's reliance on Chinese-made actuators hinders its ability to build robots and advanced hardware, profiling Westmag's efforts to revive domestic actuator production.