Apple will soon join the Partnership on AI, an artificial intelligence research group that includes Amazon.com, Google, Facebook and Microsoft.

Apple's admission into the group could be announced as soon as this week, according to a Bloomberg report.

Partnership for AI is a nonprofit organization announced in September. The group says it aims to "conduct research, recommend best practices, and publish research under an open license."

While the introduction of the Siri virtual assistant in 2011 gave Apple an early presence in AI for consumers, it has since lost ground to rivals such as Google and Amazon.