Cortana is currently exclusive to Windows Phone devices, but will come to Windows 10 for desktops this autumn, and subsequently arrive on mobile devices powered by Google and Apple.
Microsoft will beef up Cortana’s capabilities before rolling it to other platforms. The company is working on an advanced version of its voice assistant, incorporating research from an artificial intelligence project called Einstein.
There’s no word yet on just when Cortana will launch across platforms. We’ve contacted Microsoft to find out more and will update this post when we hear back.