Option A: Claude: compares the fields and drafts the questions
Best when: One assistant for both stages in a single chat
What it does: Claude extracts and drafts; you check both
Strong at: Uploads accept PDF, DOCX, CSV and TXT
Limit: Chat uploads capped at 20 files; split large sets
Free plan: Yes, limited (usage caps)
Option B: Gemini Notebook: finds the passages, you write the request
Best when: You want to own the wording and trace every claim
What it does: Gemini Notebook finds passages; you write it all
Strong at: Answers carry citations quoting the source passage
Limit: A source-bound answer can miss a passage; read originals
Free plan: Yes
Option C: ChatGPT: builds the worksheet and drafts, two checks
Best when: ChatGPT does the extraction pass and the question draft
What it does: ChatGPT extracts and drafts; two people check
Strong at: Applies a supplied checklist and pulls quotes
Limit: Both passes need line-by-line checks against originals
Free plan: Yes, limited (uploads, images, voice, data analysis)