Interesting, the post you link

> none of this tells us whether language models actually feel anything or have subjective experiences

contradicts the statement from the model card above

It doesn't. We've not been able to prove humans have subjective experiences either. LLMs display emotions in the way that actually matters - functionally.

I am certain I have subjective experience.

No it doesnt. The model card talked about increasing likelihood, not certainty.

If "x doesn't tell us y" is compatible with "x increases the likelihood of y but not to a point of certainty" then you would have to agree for just about any typical controlled trial or experimental finding "x doesn't tell us y". "Randomized controlled trials that find that SSRIs treat depression don't tell us that SSRIs effectively treat depression"