GPT-5 vs Gemini 3 Pro for Spreadsheet Formulas & Data Analysis
Which AI writes better Excel formulas, Google Sheets scripts, and data analysis queries? We test GPT-5 and Gemini 3 Pro on real spreadsheet tasks from simple VLOOKUPs to complex macros.
Spreadsheets Meet AI
Spreadsheets remain the world's most-used data tool—and one of the most frustrating. Complex formulas, nested functions, and VBA macros have steep learning curves. AI models can flatten that curve dramatically, but which model handles spreadsheet tasks best?
We tested GPT-5 and Gemini 3 Pro on 40 spreadsheet tasks across four categories: formula writing, data transformation, Apps Script/VBA macros, and data analysis with pivot tables.
Formula Writing
For standard Excel/Sheets formulas, both models perform well. VLOOKUPs, INDEX/MATCH, SUMIFS, and conditional formatting rules are handled accurately by both. GPT-5 slightly edges Gemini on complex nested formulas—its outputs have fewer syntax errors (2% vs 5% error rate).
Gemini 3 Pro has a unique advantage for Google Sheets users: it understands Sheets-specific functions (IMPORTRANGE, QUERY, ARRAYFORMULA) better than GPT-5, which occasionally suggests Excel-only syntax in Sheets contexts.
Data Transformation
For cleaning and transforming data—parsing dates, splitting text, normalizing formats—Gemini 3 Pro excels. It produces more elegant solutions using array formulas and LAMBDA functions, while GPT-5 tends toward more verbose, step-by-step approaches.
Gemini's solutions are often more efficient but harder to understand. GPT-5's verbose approach is actually preferable for spreadsheets maintained by non-technical users who need to understand and modify formulas later.
Macros and Scripts
For Google Apps Script, Gemini 3 Pro wins clearly—unsurprising given Google's deep integration. It generates working scripts for common automation tasks (email triggers, data imports, report generation) with minimal debugging needed.
For Excel VBA, GPT-5 is stronger. It handles complex macro scenarios including UserForms, event handlers, and API integrations more reliably. Legacy VBA code migration (updating old macros for modern Excel) is another GPT-5 strength.
Data Analysis
When analyzing data and generating insights, GPT-5 provides more thorough analysis. Given a dataset description, it suggests appropriate statistical methods, identifies potential biases, and generates comprehensive pivot table configurations.
Gemini 3 Pro focuses more on practical, actionable insights. Its analysis is less academically rigorous but more business-relevant. For executives who want 'what should we do?' rather than 'what does the data show?', Gemini's approach is more useful.
Recommendation
Google Sheets users: Gemini 3 Pro is the clear choice for its native Sheets understanding and Apps Script superiority. Excel users: GPT-5 handles VBA and complex formulas more reliably. For data analysis, choose based on audience—GPT-5 for thorough analysis, Gemini for business insights.
Access both through Vincony.com and test on your actual spreadsheet problems. Start with 100 free credits and find which model saves you the most time on your specific workflow.