A continuously running agent might require 100-500W for inference, so comparable to gaming or a small space heater. Not obscene, but also not negligible.

If we assume 250W for a continuously running agent, Grok 4 training run estimate would be around 50 million session-days, so a half-million people might consume as much running agents continuously for 100 days.

We might suspect the hardware used for the LLM is very similar to a graphics card and so the wattage would be extremely similar to using a graphics card to display a game's graphics in the first place. Which puts a certain ironic perspective on tokarf's original comment.