Option A: ChatGPT: classifies a filename sample into a map
Best when: You want a folder map from what is already present
What it does: ChatGPT classifies and tables; you check against files
Strong at: Keeps original filenames and extensions in the table
Limit: Accuracy not confirmed by the cited quote
Free plan: Yes, limited (free tier limits images, voice, deep research, Codex)
Option B: Claude: designs folders around how you find files
Best when: You want a system designed around retrieval habits
What it does: Claude interviews and proposes; you test and choose
Strong at: Two candidate structures from your own answers
Limit: Accuracy not confirmed by the cited quote
Free plan: Yes, limited (usage capped in 5-hour and weekly windows)
Option C: Gemini: stress-tests your naming rule first
Best when: You want weak spots found before adopting a rule
What it does: Gemini stress-tests rules; you pick cases and check
Strong at: Invented test cases stay labelled, never real files
Limit: Accuracy not confirmed by the cited quote
Free plan: Yes