Facebook's AI assistant M now chimes in in chat

This shot shows M suggesting stickers to add into a conversation. SAN FRANCISCO -- Facebook's artificial intelligence assistant, M, will now pop into chats on Messenger to offer suggestions for stickers, payments, rides or to help coordinate a meeting time. Beginning Thursday, M will chime in when Facebook users are chatting via Messenger, to suggest "relevant content and capabilities" says Facebook. The long-delayed service launched as a beta test in December and was rolled out to all iOS and Android Facebook Messenger users in the United States on Thursday as part of an update to the app. M uses artificial intelligence and machine learning to get better at suggesting relevant actions during conversations.