ChatGPT vs Claude vs Copilot finance

Do not choose a finance AI tool from a feature list alone. Choose it from the workflow: what source it needs, where review happens and who signs off the output.

Practical SME workflow

Use a variance commentary AI workflow as the test case. ChatGPT can help with spreadsheet explanation and drafting. Claude can help with workbook review and citations. Microsoft Finance Agent can help where Excel, Outlook and finance-system context are in scope.

Risk and control

Do not let tool preference override the review gate. Every output still needs source figures, assumptions, reviewer notes and a final human decision. Avoid claims that any tool replaces finance judgement.

Source basis

• OpenAI: ChatGPT for Excel and Google Sheets
• Anthropic: Use Claude for Excel
• Microsoft: Finance Agent overview