I'm more convinced that we may never create an AI with sentience. An AI will likely always mimic it though.

However, I do think an AGI and ASI are inevitable. Sentience isn't required for such things to exist.

Such intellegence just has to be similar to the alphago or alphafold models, except capable of doing all human cognitive tasks at that level or higher, and needs to be able to operate autonomously.

There are organisms that behave like this in the world, albeit not intelligent as we consider it or even alive, but still incredibly complex, autonomous and adaptable.