Option A: Gemini: maps accounts and totals the P&L, you check
Best when: You want the P&L as a live, inspectable spreadsheet.
What it does: AI maps accounts and totals; you check the result.
Strong at: Reads and analyses spreadsheet data from plain-language requests.
Limit: The free plan has usage limits
Free plan: Yes
Option B: Claude: fills the P&L template inside your Excel workbook
Best when: Your team already works in Excel and wants cell-level answers.
What it does: Claude fills the template and cites cells; you check.
Strong at: Each answer cites the cells it used.
Limit: Usage is capped in 5-hour and weekly windows.
Free plan: Yes, limited (usage capped in 5-hour and weekly windows)
Option C: By hand with formulas: ChatGPT recomputes as a second check
Best when: You want to own every calculation.
What it does: You build with formulas; ChatGPT recomputes as a second check.
Strong at: Independent recomputation catches differences in your totals.
Limit: Free plan limits file uploads and data analysis.
Free plan: Yes, limited (file uploads, data analysis)