gptsheet is a Google Sheets add-on (and Excel add-in) that runs your LLM of choice as cell formulas, sidebar tools, and a chat agent that edits your sheet. Bring your own OpenAI / Anthropic / Gemini key — your data and prompts never touch our servers. Pay once, keep it forever.
Named formulas that compose with ARRAYFORMULA, fill-down, and everything else
you already do in spreadsheets.
=GPT("Write a 5-word slogan for", A2)
=GPT_LIST("5 marketing channels for SaaS")
=GPT_TABLE("Top 5 EVs", "model,range,price")
=GPT_CLASSIFY(A2, "buy,sell,hold")
=GPT_EXTRACT(A2, "phone numbers")
=GPT_TRANSLATE(A2, "Japanese")
=GPT_FORMAT(A2, "ISO date")
=GPT_TAG(A2, "urgent,bug,feature")
=GPT_MATCH(A2:A100, B2:B500)
=GPT_EDIT(A2, "make it more concise")
=GPT_VISION("Caption this", A2)
=GPT_WEB("AAPL closing price today")
…plus =GPT_HLIST, =GPT_SPLIT, =GPT_HSPLIT, and the =GPT_CREATE_PROMPT helper.
For ad-hoc prompts, batch processing, and pulling external data — without writing a single formula.
Select a range. Describe what you want done. Hit Run. The escape hatch when no formula quite fits.
Run any formula across thousands of rows with progress, cost estimate, and one-click cancel. No 6-minute timeouts.
Multi-step agent that reads your sheet, plans the work, and writes the results. Available on Premium.
GPT for Work bundles the LLM bill into expiring credits. We don't.
| GPT for Work | gptsheet | |
|---|---|---|
| Pricing model | Credit packs ($29 → $299), expire in 12 months | One-time license · $49 / $99 / $199 / $299 lifetime |
| Bring your own LLM key | ✕ They charge for LLM usage | ✓ Pay OpenAI / Anthropic at API cost |
| Data path | Routes through their servers | Browser → LLM provider, direct |
| API keys | Stored on their servers | Browser localStorage only |
| Formula count | 16 formulas | 14 formulas (parity on what matters) |
| Sidebar agent | ✓ | ✓ (Premium) |
| Bulk processing | Up to 1M rows | Unlimited (browser-side, no quota) |
| Sheets + Excel | ✓ | ✓ |
| Money-back guarantee | — | ✓ 14 days |
Power user buys ~$150 in credits, they expire, refills again.
Already paid $49 once. OpenAI bill goes directly to OpenAI at API cost.
Heavy spreadsheet workflows on gpt-4o-mini typically cost $1–3/month at API rates.
That's 5–10× cheaper than depleting credit packs.
The only thing our server sees is a license key and your email — once, on activation.
Sidebar tools and the chat agent fetch directly from your browser to OpenAI / Anthropic / etc. Cell formulas run inside Google Apps Script — same trust boundary as your sheet itself.
No subscriptions. No expiring credits. 14-day money-back guarantee on every purchase.
=GPT_VISION — analyze images in cells=GPT_WEB — current web data, not training cutoff=GPT_IMAGE — generate images from promptsOne license = one Google or Microsoft account. Pay with card via Stripe. Get your license key by email immediately. Activate by pasting it into the sidebar.
Max owners can extend gptsheet with optional add-on packs. Each is one-time and lifetime, same as your base plan.
Available on any plan (Starter, Premium, Pro, or Max). Lifetime, one-time payment per pack. No subscriptions, no renewals.
Bring Your Own Key. You sign up directly with OpenAI / Anthropic / etc., get an API key, paste it into the gptsheet sidebar. The key lives in your browser's localStorage. When formulas or the chat agent run, the request goes from your browser straight to the provider — gptsheet's servers never see it. You pay the provider directly at API cost (typically $1–3/month for moderate use).
GPT for Work bundles the LLM cost into credit packs that expire in 12 months. They have to mark up the underlying API cost to fund their server, billing, and margin. With BYOK, you skip the markup entirely — the OpenAI bill goes directly to OpenAI at their list price. After year one, gptsheet costs you $0 in software fees forever, while a comparable GPT for Work setup would cost ~$200–500/year for a power user.
No. The sidebar tools and chat agent fetch directly from your browser to your chosen LLM provider — gptsheet's servers are never in the loop. Cell formulas run inside Google Apps Script (the same runtime that runs every other Sheets script), which is Google's environment, not ours. The only data we ever store is your license key and the email you bound it to.
One license is bound to one Google account (or one Microsoft account on the Excel side). You can sign in to that account on as many devices as you want — phone, laptop, second laptop — and gptsheet will activate on each. The binding prevents license sharing across different users, not multi-device use by you.
Honest answer: free trials add complexity and most users don't convert. We bet you can decide if a $49 spreadsheet add-on is worth it from the screenshots and 14-day money-back guarantee. If gptsheet doesn't work for you, refund within 14 days. No questions, no clawbacks.
Yes — both Google Sheets and Excel ship at launch. The formula set is identical. The chat agent is identical. The sidebar UI is the same on both, just with the platform-native styling. One license covers both platforms.
Premium tier supports local Ollama endpoints. Point it at http://localhost:11434 and run any model you've pulled. Useful when you want zero outbound LLM calls — perfect for sensitive datasets.