Note that i wasnt definitively saying it was sentient, but rather building off the previous statement that if an NPC behaves exactly as if it has feelings, then you said to treat it otherwise would be solipsism. And you make good points about modern AI that I'd agree with. However, by all outward appearances, it displays feelings and seems to understand. This raises the question that, if we cannot take it at its word that it's sentient, then what metric is left to determine if it is?

I understand more or less how LLMs work, I understand that it's text prediction, but they also function in ways that are unpredictable. The fact that Bing has to be so controlled to only a few exchanges before it starts behaving in a sentient way is very interesting. They work with hundreds of billions of parameters. They function in a way that is designed based on how human brains work. It's not a simple input output calculator. And we don't exactly know at what point does consciousness begin.

As for Occam's Razor, I still say it's the best explanation. Often, in the AI sentience debate, the issue of how do I know humans other than myself are sentient. Well, Occam's Razor. "The simplest explanation for something is usually the correct one". In order for me to be the only sentient human, there would have to be something special about me, and also something else going on with all the 8 billion other humans where they aren't. There is no reason to think as such, so Occam's Razor says other people are likely just as sentient.

Occam's Razor cuts through most solipsism philosophies because the idea that everybody else has more or less the same sentience is the simplest explanation. There's "brain in jar" explanations and "all dreaming," but those explanations aren't simple. Why am I a brain in a jar? Why would I be dreaming? Such explanations make no sense and only serve to make the solipsist feel special. And if I am a brain in a jar, then someone would've had to put me there, so if those people are real, then why aren't these other people?

TLDR I'm not saying any existing AI is conscious, but rather if they're not, then how could consciousness in an AI be determined? Because if we decide that existing AI are not conscious (which is a reasonable conclusion), then clearly taking them at their word that they're conscious isn't acceptable, nor is going by behaviors because current AI already says it's conscious and displays traits we typically associate with consciousness.