Amazon's Alexa will now be able to activate Microsoft's Cortana and vice versa.
"Ensuring Cortana is available for our customers everywhere and across any device is a key priority for us," said Microsoft CEO Satya Nadella. "Bringing Cortana's knowledge, Office 365 integration, commitments, and reminders to Alexa is a great step toward that goal."
Alexa was first introduced in November 2014 while Cortana was announced six months later as part of the company's smartphone.
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