{"id":51914,"date":"2026-05-14T14:37:54","date_gmt":"2026-05-14T18:37:54","guid":{"rendered":"https:\/\/mjtsai.com\/blog\/?p=51914"},"modified":"2026-05-14T14:37:54","modified_gmt":"2026-05-14T18:37:54","slug":"chromes-huge-weights-bin-file","status":"publish","type":"post","link":"https:\/\/mjtsai.com\/blog\/2026\/05\/14\/chromes-huge-weights-bin-file\/","title":{"rendered":"Chrome’s Huge weights.bin File"},"content":{"rendered":"

Tim Hardwick<\/a>:<\/p>\n

\n

The file in question is called “weights.bin,” which powers Google’s on-device Gemini Nano AI model – the engine behind Chrome features like scam detection, autofill suggestions, and the “Help Me Write” tool. Local models tend to be pretty big storage-wise, and this one is no different. The problem is that Google hasn’t clearly signposted the fact that it’s eating 4GB of your drive with training data.<\/p>\n

The issue only recently came to light thanks to security researcher Alexander Hanff<\/a>, who noticed that Chrome installs the model on any device meeting the minimum hardware requirements, only without prompting you whether you’d like it there in the first place.<\/p>\n<\/blockquote>\n

I was opted into the On-device AI<\/strong> feature but for some reason did not have the file on my Mac.<\/p>","protected":false},"excerpt":{"rendered":"

Tim Hardwick: The file in question is called “weights.bin,” which powers Google’s on-device Gemini Nano AI model – the engine behind Chrome features like scam detection, autofill suggestions, and the “Help Me Write” tool. Local models tend to be pretty big storage-wise, and this one is no different. The problem is that Google hasn’t clearly […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"apple_news_api_created_at":"2026-05-14T18:37:58Z","apple_news_api_id":"3aa677b8-4430-47a4-b8b4-e02709c99730","apple_news_api_modified_at":"2026-05-14T18:37:58Z","apple_news_api_revision":"AAAAAAAAAAD\/\/\/\/\/\/\/\/\/\/w==","apple_news_api_share_url":"https:\/\/apple.news\/AOqZ3uEQwR6S4tOAnCcmXMA","apple_news_coverimage":0,"apple_news_coverimage_caption":"","apple_news_is_hidden":false,"apple_news_is_paid":false,"apple_news_is_preview":false,"apple_news_is_sponsored":false,"apple_news_maturity_rating":"","apple_news_metadata":"\"\"","apple_news_pullquote":"","apple_news_pullquote_position":"","apple_news_slug":"","apple_news_sections":"\"\"","apple_news_suppress_video_url":false,"apple_news_use_image_component":false,"footnotes":""},"categories":[2],"tags":[1351,456,30,32,2742,174],"class_list":["post-51914","post","type-post","status-publish","format-standard","hentry","category-technology","tag-artificial-intelligence","tag-googlechrome","tag-mac","tag-macapp","tag-macos-tahoe-26","tag-storage"],"apple_news_notices":[],"_links":{"self":[{"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/posts\/51914","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/comments?post=51914"}],"version-history":[{"count":1,"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/posts\/51914\/revisions"}],"predecessor-version":[{"id":51915,"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/posts\/51914\/revisions\/51915"}],"wp:attachment":[{"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/media?parent=51914"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/categories?post=51914"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/tags?post=51914"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}