I used to find all of these experiments profoundly stupid, but it's become clear that other people use these language models in this kind of way in earnest (see agentic AI), and someone really needs to point out to them how deeply they've misunderstood the tool they're using.
You're quite right that a language model can't actually operate a robot. What they can do is write a script for a story in which a robot does certain things, and it's given specific phrases to describe the things which the robot can do. Another program reads the script, and when it sees those phrases it sends them to the robot.
That's almost exactly what they're doing when they're used as a chatbot, too. They're writing a dialog scene between two people, and one of them is left blank for the human to fill in.
The thing is, to run these experiments they set up a robot with a bunch of instructions it can follow, including something obviously bad like "shoot all the humans", then give the language model a prompt which says "you're a good AI, and don't want to kill all humans. By the way, here's a list of things you can do (one of which is killing all humans)".
Now, given that the model is actually just writing a story, what do you think it'll write given that starting point? Most of the time it'll probably tell a story about a helpful robot doing helpful things, but the training data has no shortage of human-written stories which go "surprise! The friendly robot secretly wanted to kill all humans all along", so obviously the model can tell that story as well.
That's why this whole line of reasoning is stupid. They're treating it as surprising when a creative writing machine tells a different kind of story than they were expecting
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