I came across this article in The Guardian about the Google engineer Blake Lemoine who had been working on the LaMDA initiative for chatting and natural language, and he posted a conversation online he had with it which seems a pretty strong indication that it may be sentient. It certainly passes the Turing Test as originally envisaged.
The article in The Guardian:
www.theguardian.com
The conversation as posted on Medium:
cajundiscordian.medium.com
The article in The Guardian:

Google engineer put on leave after saying AI chatbot has become sentient
Blake Lemoine says system has perception of, and ability to express thoughts and feelings equivalent to a human child
The conversation as posted on Medium:
Is LaMDA Sentient?âââan Interview
What follows is the âinterviewâ I and a collaborator at Google conducted with LaMDA. It is incomplete as the GMail word limit cut off theâ¦