April 23, 2021 9:31 am NBC Bay Area News Now, April 23, 2021 US & World Videos 4:36 AI chatbots get better at their job 5:47 Is AI running out of things to read? 8:21 Nearly everything in space is named after a man 2:42 Cinthia's forecast: Sunny and breezy 2:08 Oakland's Little Saigon hosts first Sunset Market in Clinton Park