Option A: ChatGPT: drafts the backup plan, you check it
Best when: You want ChatGPT to draft in stages, with a final source check
What it does: ChatGPT drafts both plans in stages; you pick sources and check
Strong at: Writes, rewrites and summarises text from your documents
Limit: Not confirmed for this exact flow; test on a small sample
Free plan: Yes, limited (uploads, images, voice, data analysis)
Option B: Claude: drafts the fallback, you assemble the plans
Best when: You want to own the source selection and the final assembly yourself
What it does: Claude drafts the fallback; you select sources and assemble
Strong at: Drafts and edits text in many formats
Limit: Not confirmed for this exact flow; test on a small sample
Free plan: Yes
Option C: Gemini Notebook: drafts both plans, you check
Best when: You want both plans drafted from your sources, go/no-go left to you
What it does: Gemini Notebook drafts both plans; you select sources and check
Strong at: Answers grounded in your sources with cited passages
Limit: Not confirmed for this exact flow; check drafts against sources
Free plan: Yes, limited (notebook and source caps)