Enlarge / Along with video chatting through Facebook Messenger, both Portal devices have built-in Amazon Alexa. (credit: Facebook) Facebook is working on developing an AI voice assistant similar in functionality to Amazon Alexa, Google Assistant, or Siri, according to a report from CNBC and a later statement from a Facebook representative. The CNBC report, which cites "several people familiar with the matter," says the project has been ongoing since early 2018 in the company's offices in Redmond, Washington.