I would describe what you're calling 'sentience' as 'consciousness' or maybe even 'sapience'. Sentience typically refers to having senses/a perspective/experience of a life at all. My cat is sentient, but does she have full-awareness? Possibly not, by human standards.
It's very possible to create a sentient AI right now (you could argue the Creatures game series had those decades ago), but a fully conscious, self-aware, sapient General AI? That seems to still be science fiction at the moment.