neowin[.]net/news/official-windows-11-registry-mod-blocks-automatic-download-of-4gb-ai-model-on-google-chrome/
Both Chrome & Edge can download AI models for local AI processing by the browser. I 1st became aware of Chrome doing this scanning the drive with WizTree -- Chrome stores ~4GB in Users\ [UserName]\ AppData\ Local\ Google\ Chrome\ User Data\ OptGuideOnDeviceModel\. If Edge has done similar I don't know where it's stored. From what I've read there's no switch in Chrome to turn this off, and it replaces the files if you delete them. Neowin writes that there's a registry entry that prevents Edge from downloading AI models, and will cause it to delete any that it's already downloaded. They also include a version of the same policy setting for Chrome.
Does it work? I've no idea yet, but after a few hours the Chrome model's still there. If it doesn't go away on its own I'll try deleting it, and see if it returns. I'll let you know.