I tried Google Drive's Gemini 3.7 Flash cleanup tool to fix 14 years of storage clutter - here's the result

My Google Drive has been a disaster since 2012. Fourteen years of accumulated attachments, duplicate downloads, abandoned project folders, and mysterious files with names like Untitled_document_final_FINAL_v3.docx had bloated my account to 412GB - well over my 200GB Google One limit, which meant I'd been paying for the 2TB tier for years just to avoid dealing with the mess. When Google announced the new Gemini 3.7 Flash-powered Drive cleanup tool in the August Pixel Drop, I decided it was finally time to tackle the problem. Three weeks and 4,000 deleted files later, here's what happened, what worked, and where the tool fell short. The Gemini 3.7 Flash cleanup tool, accessible from Drive's Settings menu under Storage Management then AI Cleanup, is a genuinely impressive piece of software. It scans your entire Drive - including shared drives, attachments, and files in Trash - and uses the Gemini model to categorize every file by type, age, relevance, and duplication status. The first scan of my 412GB took about ninety minutes, which is reasonable given the volume, and the results were striking: it identified 11,400 duplicate files, 3,200 files I hadn't opened in over five years, 880 large video files that were backed up elsewhere, and - surprisingly - 412 files that were exact duplicates of emails I'd received as attachments and had already saved in their original location. The tool's categorization was impressively nuanced. It didn't just flag duplicates by filename; it compared file content hashes, so even files with different names but identical contents were flagged. It used Gemini 3.7 Flash to read document contents and identify folders that had clearly been abandoned - projects from 2014, old client work, a folder of photos from a phone I stopped using in 2018. It even cross-referenced my recent Google Docs and Sheets activity to identify files I was unlikely to need again. The actual cleanup was where the experience got more complicated. The tool presents its findings as a series of review screens, and you can accept or reject its suggestions file by file or in bulk. I accepted about 80% of its suggestions, which freed up 287GB - enough to downgrade from the 2TB Google One tier to the 200GB tier and save $80 a year. The 20% I rejected included some old client work I'm legally required to retain and a handful of personal documents the AI couldn't have known were sentimentally important. The tool's one real weakness: it doesn't handle shared drives well, and it occasionally flagged files that were actively being collaborated on as abandoned. Still, for anyone drowning in Drive clutter, the Gemini 3.7 Flash cleanup tool is the first automated solution that actually works at scale.