A uses one thread for both jobs, B adds cited extraction and a critique around a hand-written draft, and C keeps extraction human and delegates only the drafting.
Option A: ChatGPT: extracts items, you check, it fills the template
Best when: One thread carries both jobs
What it does: ChatGPT extracts and drafts; you check and hold
Strong at: Keeps related chats, files and instructions together
Limit: An uncaught extraction error carries into the draft
Free plan: Yes, limited (file uploads, images, voice, data analysis)
Option B: Gemini Notebook cites items, Claude critiques your draft
Best when: Traceability across several inputs matters
What it does: Gemini Notebook cites; you write; Claude critiques
Strong at: Answers grounded in the sources you provide
Limit: The notes reach two vendors, one per AI step
Free plan: Gemini Notebook: Yes, limited (500,000-word sources); Claude: Yes, limited (5-hour usage caps)
Option C: Claude: fills the template from your hand-built sheet
Best when: Commitments are subtle and you read alone
What it does: Claude fills the template from your sheet
Strong at: Drafts and edits text in many formats
Limit: Nothing re-reads the draft against the notes except you
Free plan: Yes, limited (5-hour and weekly usage caps)