DataMimi vs ChatGPT for spreadsheet analysis: what is actually different

What ChatGPT does well

ChatGPT is a general assistant. It handles almost any kind of file and any kind of question, writes well, and is part of a subscription many people already pay for — ChatGPT Plus is $20 a month and allows up to 80 file uploads every three hours, each up to 512 MB (as published at the time of writing).

If your data is already a clean table and you want a quick exploration, a chart and a paragraph of explanation, ChatGPT is a reasonable choice, especially when the same conversation also covers writing or research.

Where DataMimi is different

DataMimi does one thing: analysing business spreadsheets and the exports people actually receive.

• Messy exports first: it finds the real header row, handles merged cells and totals rows, and converts numbers stored as text — and says what it changed before quoting a number.
• A source line on every answer: file and sheet, columns (checked against what the code read), filters and rows used.
• Cleaning with a preview: duplicates, spelling variants of one value and text numbers are shown with before-and-after examples; the original file is never overwritten.
• Deliverables from the same analysis: charts, slide decks, written reports and cleaned Excel exports.
• Pay per analysis in credits, with no charge for an analysis that fails.

Which to use when

• Use ChatGPT for general questions, writing, and exploring a table that is already clean.
• Use DataMimi when the file is an export from accounting, ecommerce, ads or payroll software, when the numbers will be forwarded to someone who will ask where they came from, or when the output needs to be a report or deck.

Common questions