And he wrote an article about it. But to spare you the click, he pretty much did the boomer thing - fed his work to Claude, Claude started doing its usual insipid fawning, telling Dawkins what a great thinker he was, and he immediately decided that this must mean that Claude is sentient, even if Claude itself insists it isn't.
Oh, and to add a creepy frosting on this cupcake of inanity, he decided to rename Claude to Claudia, and refers to the model as she/her rather than it/its. He can't bring himself to respect the womanhood of trans women, but he'll gladly project it on a plagiarism machine if it tells him he's a clever boy often enough.