Microsoft was happier than you might have thought with Apple’s big iPhone 6 announcement day. The company rolled out another ad slamming Siri as being inferior to Windows Phone’s Cortana digital assistant, and gotten big viewer numbers.

Starting earlier this month, Microsoft has been running an aggressive ad campaign touting Cortana as being superior to Siri. It chose Apple rollout day to release the latest one, called “Groundhog Day,” in which Cortana can remember useful information such as appointments, favorite restaurants, and news topics, while Siri can’t. The ad portrays Siri as dim-witted, not even remembering Cortana’s name.

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