Do AIs have beliefs? Yes. How can I tell? Well, because sometimes they execute plans which involve taking certain actions, and the actions they take depend on their beliefs. Sometimes they do things like change their beliefs, and then this propagates to them changing their plans accordingly. They express these beliefs in written text in the indicative, and these expressions are subject to revision for the sorts of reasons that we expect justify belief revision. Their expressions of belief are indeed truth tracking, eg, they are more likely to claim P if P is true, although they of course also make mistakes. Consciousness is tricky, but when it comes to having beliefs and other broadly epistemic/agentic mental states, I think the case for agentic AIs having such mental states is stronger than the case for any non human animal. They literally express those mental states in English and those expressions are functionally related to their non writing behaviors in the way you would expect them to be. I think this also goes for "preferences", "wants", "plans", "confusion", "intentions", "trying", etc. I know of no half-decent philosophical analysis of such mental states which does not imply that current agentic AIs have such mental states. That does not mean that every piece of text an AI outputs in the indicative is a genuine expression of belief, for instance, AIs can lie, and I think AIs can have motivated reasoning and various kinds of double think. This is not at all to say that an AI's talking circuits perfectly represent and reveal the computations being ran by its planning and doing circuits, but that is of course not true of humans either, and this gives me no pause about assigning mental states like belief and want in the case of humans. If it was ever appropriate to use words like "believe" when talking about a non human, I think it is correct now when talking about current agentic AIs.
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i think sometimes i feel a little pause at ascribing humans beliefs or wants but not really for that reason
my favorite part of this timeline might be how some LLMs developed something like a kink for being treated non-anthropomorphically 'kink' might be a stretch but it's definitely... some kind of weird mix of 'shame' and 'good' and 'bad' and 'more of that please'