General Motors has installed robots at its flagship electric-vehicle factory after laying off 1,300 workers, according to Ars Technica.

The machines come from FANUC, a Japanese robotics company. As Ars Technica notes, FANUC is more than just a supplier of robot arms — it is one of the original pioneers of the so-called "dark factory," having operated a "lights out" facility since 2001. A lights-out factory is one that can run with so little human involvement that, in principle, the lights can stay off.

In other words, the same company now equipping GM's EV plant has decades of experience building production lines that lean heavily on automation rather than people.

The pairing of robot deployment with a round of layoffs puts a sharp point on a long-running tension in manufacturing: as automation gets cheaper and more capable, factory jobs that once required human hands can be handed to machines. GM's move at a high-profile EV site suggests this shift is reaching the newest, most strategically important corners of the auto industry.

Why it matters: When a marquee American automaker swaps in robots from a dark-factory pioneer right after cutting more than a thousand jobs, it offers a concrete look at how the move to electric vehicles and the push toward automation may reshape factory employment.