Best AI data analysis tools for executive assistants
EAs occasionally analyze expense-report patterns (where is the principal overspending), scheduling load (where is the calendar over-allocated), and survey results from internal teams. The four below cover that work without requiring the EA to learn Excel formulas they'll forget by next quarter.
ChatGPT
★ Editor's pickFree tierOpenAI's flagship. The chatbot most people already pay for, with the deepest ecosystem.
Free plan. Go at $8/month, Plus at $20/month, Pro from $100/month with $200 and $500 tiers. Business at $25/user/month billed yearly.
Code Interpreter handles CSV uploads, runs analysis, generates charts. Most EA data work is one-off and ChatGPT fits.
Pros- Custom GPTs lock a style guide so a team doesn't re-paste it every time
- Memory carries context across sessions without a workflow
- Image generation, voice, and web browsing are bundled in
Cons- Long outputs drift off-voice unless you keep correcting
- Memory occasionally pulls in irrelevant past chats
- Pro tier is overkill for most marketing writing
Julius AI
Free tierAI data analyst that writes Python, runs the analysis, and explains the result.
Free tier with 15 messages/month. Basic at $20/month, Pro at $45/month.
Dedicated AI data analyst UI when occasional analysis becomes regular. $20/month Basic.
Pros- Upload a CSV or Excel file and ask questions in plain English
- Writes and runs Python under the hood, shows the code if you want
- Best in class for non-technical users who need real analysis, not just summary
Cons- Limited to data you upload; no native connectors to warehouses
- Free tier message cap is tight for real exploration
- Code is hidden by default, which can hide errors
Rows
Free tierSpreadsheet with built-in AI functions and live data connectors.
Free plan. Plus at $6/user/month billed yearly ($8 monthly). Pro at $59/month plus $6/user billed yearly. Rows has joined Superhuman.
Spreadsheet with AI functions. Best when EA data tasks involve ongoing tracking, not just one-off analysis.
Pros- AI functions live inside cells: =AI("summarize", A1) works like SUM
- Native connectors to HubSpot, Stripe, Notion, social platforms
- Familiar spreadsheet interface, no notebook learning curve
Cons- Less powerful for true statistical analysis than Julius or Hex
- Connector library smaller than Zapier-style automation tools
- Pro features required for serious team use
Claude
Free tierAnthropic's chatbot. The 2026 pick for long-form work that has to hold voice.
Free plan. Pro at $17/month billed yearly ($20 monthly), Max at $100/month, Ultra at $200/month.
Long-context analysis when reporting has to be synthesized into executive briefings.
Pros- Longest, most on-voice drafts of any general-purpose chatbot
- Projects feature loads a full brand bible once and pulls from it across every chat that month
- Reads PDFs, decks, and CSVs without setup
Cons- No native image generation
- Smaller third-party ecosystem than ChatGPT
- Free-tier limits kick in fast on long sessions
Frequently asked questions
Best tool for expense report analysis?
ChatGPT Code Interpreter. Upload the CSV; ask questions; get charts. Faster than Excel for one-off questions.
Can AI summarize survey results?
Yes. Upload survey export to ChatGPT or Claude; both will identify themes and pull representative quotes.
How do I keep executive data private?
Enterprise tiers with no-training guarantees. Anonymize before pasting where possible.
Free option that works?
ChatGPT Free with Code Interpreter handles light analysis. Sufficient for most EA needs.
