Option A: Claude: builds the scenario sheet, drafts the options
Best when: You want a downloadable scenario sheet and drafted options
What it does: Claude builds and drafts; you check twice
Strong at: The sheet comes back with working formulas
Limit: A first-stage error can carry into the draft; check carefully
Free plan: Yes
Option B: Gemini: drafts the options from your own spreadsheet
Best when: You want to control every formula, tool only writes
What it does: You build the table; Gemini drafts from it
Strong at: Every value and formula is placed by you
Limit: First stage is hand work; slower on large inputs
Free plan: Yes
Option C: ChatGPT computes, Notion AI drafts in a workspace
Best when: You want readable calculation code, drafting in a workspace
What it does: ChatGPT computes, you check, Notion AI drafts
Strong at: The Python can be audited and re-run before reliance
Limit: Two tools mean a manual copy between workspaces
Free plan: ChatGPT: Yes, limited (uploads and analysis capped); Notion AI: Paid plan needed