I saw the interview with Dario Amodei. Look at 0:48

https://m.youtube.com/watch?v=7LNyUbii0zw

He seems adamant that there are no diminishing returns to scaling AI.

I don’t want to stir up conspiracy theories but I do think that currently all the big AI players have a vested interest in the message that the current scaling paradigm is the right one, and that this is a supremacy issue wrt China. It drives so much investment and valuation that I doubt they can truly be objective.