Facebook M, the text-based virtual assistant that used human workers to train an artificial intelligence system, is ending the human-assisted part of the service after two and a half years. The human-enhanced version of M, which was available through a bot on Facebook Messenger, only ever became available to about 2,000 people living in California. The final day of the M virtual assistant will be January 19th, Facebook said, and contractors who worked on it will be offered other jobs at the company.
Surprisingly I like Cortana on Skype but never cared for the Facebook bot.