Option A: Gemini: builds the fact sheet and drafts, you check
Best when: You want sources, fact sheet and draft kept in one chat
What it does: Gemini builds the fact sheet and drafts; you check
Strong at: Drafts and summarises text
Limit: Up to 10 files per prompt, subject to availability
Free plan: Yes
Option B: ChatGPT: drafts from a hand-built checked fact sheet
Best when: You want only a hand-checked fact sheet to reach the AI
What it does: You build the sheet; ChatGPT drafts; you check
Strong at: Answers questions; writes, rewrites and summarises text
Limit: Free plan allows up to 5 files per project
Free plan: Yes, limited (uploads, images, voice, analysis)
Option C: Claude: audits the invitation you write yourself
Best when: You want to write it yourself with an AI second look
What it does: You write; Claude audits; you resolve items
Strong at: Drafts and edits text in many formats
Limit: The audit only flags problems; it may miss issues
Free plan: Yes