Option A: Perplexity and Claude: draft an evidence-backed opener
Best when: You want current web answers with linked sources
What it does: Perplexity researches; Claude drafts; you check sources and decide
Strong at: Cites original sources and summarises documents and webpages
Limit: Uploads limited to 40 MB per file
Free plan: Perplexity: Yes, limited; Claude: Yes, limited
Option B: ChatGPT: drafts an evidence-backed opener
Best when: You want drafting, file analysis and web research together
What it does: ChatGPT drafts; you check sources and decide
Strong at: Writes and summarises text; analyses files and searches the web
Limit: Free plan limits uploads, images, voice and data analysis
Free plan: Yes, limited; uploads and data analysis capped
Option C: Gemini Notebook: drafts an evidence-backed opener
Best when: You want answers grounded in your supplied sources
What it does: Gemini Notebook drafts; ChatGPT flags unsupported claims; you check
Strong at: Answers source-grounded questions and exports reports to Docs and Sheets
Limit: Cannot access information across multiple notebooks at the same time
Free plan: Gemini Notebook: Yes, limited; ChatGPT: Yes, limited