AI Formula Generators & Assistants
Tools that write formulas, fill cells and answer questions right inside Excel and Google Sheets — Copilot, Gemini, Formula Bot, Ajelix, GPT for Sheets and Numerous.ai.
The top formulas & assistants tools in 2026 are Microsoft Copilot in Excel, Formula Bot, Gemini in Google Sheets. Below, all 6 are ranked on capability, pricing transparency, fit, and traction.
Microsoft Copilot in Excel
Formulas & Assistants · Native AI AssistantMicrosoft's native AI inside Excel for formulas, pivot tables, charts and analysis
Best for: Teams already on Microsoft 365 who want AI without leaving Excel
Formula Bot
Formulas & Assistants · AI Formula GeneratorPlain-English formula generator and AI assistant for Excel and Google Sheets
Best for: Anyone who wants to describe a formula in plain English and get it instantly
Gemini in Google Sheets
Formulas & Assistants · Native AI AssistantGoogle's Gemini AI built into Sheets for formulas, summaries and instant charts
Best for: Anyone on Google Sheets who wants AI with no new tools
GPT for Sheets (GPT for Work)
Formulas & Assistants · Bulk AI FunctionsRun AI prompts across thousands of spreadsheet rows in Excel and Google Sheets
Best for: Bulk tasks like classifying, cleaning or generating text for thousands of rows
Ajelix
Formulas & Assistants · AI Spreadsheet ToolkitAI toolkit for Excel and Sheets — formulas, VBA scripts, translation and BI
Best for: Power users who want formulas, scripts and dashboards from one toolkit
Numerous.ai
Formulas & Assistants · In-Sheet AI FunctionsChatGPT-powered AI functions that fill and transform cells in Excel and Sheets
Best for: Drag-down AI tasks like categorizing, writing copy or extracting data per row