ChatGPT for Google Sheets vs Deckary (2026)
A side-by-side comparison of ChatGPT for Google Sheets and Deckary on pricing, features, and fit, so you can decide which is right for you.
Quick answer
ChatGPT for Google Sheets and Deckary are both strong choices, but they fit different needs. Choose ChatGPT for Google Sheets if you mainly need automatically generating complex excel-style formulas by describing the desired calculation in plain text — its edge is eliminates the need to memorize complex spreadsheet formula syntax. Choose Deckary if you need building financial models faster by prompting the ai to construct complex formulas and structured tables — its edge is works natively inside excel so there is no need to switch tools or copy data elsewhere. ChatGPT for Google Sheets starts at Varies based on OpenAI API key usage costs, typically a few cents per request; Deckary starts at $15/mo billed annually ($180/yr), includes AI Excel agent and PowerPoint tools.
Features compared
- Natural language cell editing and content generation directly inside Google Sheets
- AI-powered formula generation from plain English descriptions
- Data summarization and analysis using conversational prompts
- Seamless Google Workspace Marketplace integration with no external platform required
- Agentic AI that edits your open Excel workbook directly from plain-language prompts
- Automatic formula and pivot table generation without manual function writing
- Chart creation powered by natural language descriptions of the desired visualization
- Integrated PowerPoint slide generation from your existing Excel data
Pros & cons
- Eliminates the need to memorize complex spreadsheet formula syntax
- Works directly inside Google Sheets with no context switching required
- Flexible usage model allowing connection to your own OpenAI API key
- API usage costs can add up quickly for heavy or enterprise-level users
- Functionality depends on the reliability and rate limits of the OpenAI API
- Works natively inside Excel so there is no need to switch tools or copy data elsewhere
- Combines spreadsheet AI assistance with PowerPoint generation in one subscription
- Understands workbook context, making its suggestions more accurate than generic AI chat tools
- No free tier means users must commit to a paid plan to try the tool beyond any trial period
- Limited to Microsoft Excel users, so Google Sheets or other spreadsheet users are not supported
The verdict
Choose ChatGPT for Google Sheets if
you mainly need to automatically generating complex excel-style formulas by describing the desired calculation in plain text. Its edge: eliminates the need to memorize complex spreadsheet formula syntax.
Choose Deckary if
you mainly need to building financial models faster by prompting the ai to construct complex formulas and structured tables. Its edge: works natively inside excel so there is no need to switch tools or copy data elsewhere.
Frequently asked questions
Is ChatGPT for Google Sheets better than Deckary?
Neither is universally better. ChatGPT for Google Sheets is stronger for automatically generating complex excel-style formulas by describing the desired calculation in plain text, with an edge in eliminates the need to memorize complex spreadsheet formula syntax. Deckary is stronger for building financial models faster by prompting the ai to construct complex formulas and structured tables, with an edge in works natively inside excel so there is no need to switch tools or copy data elsewhere. Pick based on your main task.
Which is cheaper, ChatGPT for Google Sheets or Deckary?
ChatGPT for Google Sheets starts at Varies based on OpenAI API key usage costs, typically a few cents per request and Deckary starts at $15/mo billed annually ($180/yr), includes AI Excel agent and PowerPoint tools. Free tier: ChatGPT for Google Sheets — Limited free usage available through the Google Workspace Marketplace install; Deckary — No free tier available.
What is ChatGPT for Google Sheets best for?
ChatGPT for Google Sheets is best for automatically generating complex excel-style formulas by describing the desired calculation in plain text, cleaning and reformatting messy imported data across large spreadsheet ranges, drafting marketing copy, product descriptions, or email text inside spreadsheet cells for bulk content workflows.
What is Deckary best for?
Deckary is best for building financial models faster by prompting the ai to construct complex formulas and structured tables, creating client-ready powerpoint presentations directly from excel data without copy-pasting, automating repetitive pivot table and chart creation for recurring business reports.
Do ChatGPT for Google Sheets and Deckary have free plans?
ChatGPT for Google Sheets: Limited free usage available through the Google Workspace Marketplace install. Deckary: No free tier available. Check each tool's pricing page for current limits, as plans change.