Option A: Gemini Notebook: catalogues sources by outcome, you check
Best when: You want a cited catalogue grounded in your own files
What it does: Gemini Notebook catalogues; you check and pick gaps
Strong at: Maps sources to outcomes with inline citations
Limit: Sources capped at 500,000 words or 200 MB each
Free plan: Yes
Option B: Claude: cards first, then the catalogue, you check
Best when: You want each source checked as its own card
What it does: Claude writes cards and assembles; you check
Strong at: Summarises documents into per-source cards
Limit: Usage capped in 5-hour and weekly windows
Free plan: Yes, limited (usage caps)
Option C: ChatGPT: drafts catalogue and index, you check
Best when: You want the catalogue and index drafted in one chat
What it does: ChatGPT drafts both; you check and pick gaps
Strong at: Analyses uploaded files and drafts structured lists
Limit: Free plan limits file uploads and data analysis
Free plan: Yes, limited (uploads and analysis capped)