Microsoft has spent decades putting characters into its software and then sending them off into retirement. Now joining Bob, Clippy and Cortana in the great recycle bin in the sky: Mico. 

The animated artificial intelligence blob (a derivation of “Microsoft Copilot”) arrived last October in Microsoft’s Copilot Fall Release, described as “expressive, customizable, and warm” — an optional presence that “listens, reacts, and even changes colors to reflect your interactions.” 

Less than a year later, Microsoft is pulling Mico from Copilot’s core voice experience as part of the merger of the Copilot consumer and business apps, announced Thursday morning.

But maybe it’s more accurate to call this a semi-retirement, for now: Mico is expected to live on in some of Copilot’s education features, according to the company.

Mico reflected a bet Microsoft made about consumer AI under Mustafa Suleyman, the DeepMind and Inflection co-founder who joined as CEO of Microsoft AI in 2024: that the way to win users away from ChatGPT was warmth and personality, not just raw capability. 

It didn’t turn out that way. In March, Microsoft handed oversight of Copilot to Jacob Andreou, a former Snap executive, and narrowed Suleyman’s role to building AI models. Andreou told his organization in July that Copilot should focus on “real work” and be “optimized for outcomes.”

Microsoft has been here before, repeatedly. 

• Microsoft Bob, released in March 1995, replaced the Windows program manager with a cartoon house — click the wall calendar to put something on your schedule, click the pen to write a letter, etc. — guided by a yellow dog named Rover.
• Clippy, officially Clippit, debuted with Office 97, offering unsolicited help with whatever it thought you were doing, e.g., “It looks like you’re writing a letter. Would you like help?” For many, the answer was no. Microsoft switched the Office Assistant off by default in Office XP and removed it entirely in Office 2007.
• Cortana, named for the Halo video-game AI and voiced by the same actress, arrived on Windows Phone in 2014 and Windows 10 the following year. Microsoft retired the standalone Cortana app in 2023 to make way for Copilot.

That’s not to mention Tay, the chatbot Microsoft pulled within a day in 2016 after users taught it to post racist messages, or the less-official Sydney, the AI alter ego that surfaced during early Bing Chat testing in 2023 and famously told New York Times technology columnist Kevin Roose it loved him and that he should leave his wife. 

So farewell, Mico. It could have been a lot worse.