Google has been quietly downloading a large AI model, Gemini Nano, without asking or notifying users. Alex Valdes from Bellevue, Washington has been pumping content into the Internet river for quite a while, including stints at MSNBC.com, MSN, Bing, MoneyTalksNews, Tipico and more. He admits to being somewhat fascinated by the Cambridge coffee webcam back in the Roaring '90s. Even if you had no intention of installing a relatively big  AI model onto your computer... surprise, you might have one anyway. Google Chrome has been quietly installing a 4GB file on devices without users' consent. But you can check whether it's actually taking up space on your machine and get rid of it.  The mysterious file in question is Gemini Nano, an AI model that runs on devices such as smartphones and laptops rather than in the cloud. According to  Alexander Hanff , a Swedish computer scientist and lawyer known as That Privacy Guy, it's been installed on some people's Chrome browsers without permission.…