Geek in the Sheets
Your Google Sheet, on autopilot
The AI assistant for Google Sheets™. Tell the Geek what you want in plain English — it reads and edits your spreadsheet for you.
Install now — free
Things people use it for
- Write a VLOOKUP between two sheets (and have it explained)
- Clean up whitespace and messy text formatting
- Split full names into first and last name columns
- Fix capitalization across a column
- Categorize and tag rows automatically
- Build a category totals table with SUMIF
- Summarize a spreadsheet you didn't build
- Generate sample or placeholder data
- Paste a formula, get a plain-English explanation
- Undo an AI change with one click
How it works
- 1 Install free from the Google Workspace™ Marketplace.
- 2 Open any spreadsheet and launch it from the Extensions menu.
- 3 Grant access — to that spreadsheet only.
- 4 Ask for what you want in plain English; watch the sheet update.
Experiment fearlessly
One-click Undo
Before every AI change, a snapshot is taken. One-click Undo restores your sheet to before the last change — so you can ask the Geek to try something, see what it does, and roll back instantly if it is not what you wanted.
Private by design
- Accesses only the spreadsheet it is opened in — it cannot see the rest of your Google Drive™ or any other files.
- Uses your email address for sign-in only.
- Your Anthropic API key is never stored on our servers — it is passed along with each request only.
Pick a plan
Free
No card required
- 50 free credits on install
- 10 trial messages to test your own API key
- Powered by Claude Sonnet
Credit Packs
One-time purchase · No subscription
| Starter — 100 credits | $1.99 |
| Popular — 300 credits | $4.99 |
| Power — 1,000 credits | $14.99 |
| Max — 3,000 credits | $39.99 |
1 credit = $0.01. A typical request uses a few. Buy inside the add-on after install.
Install now — freePremium (BYOK)
Bring your own Anthropic API key
- Unlimited use with your own API key
- Your key is never stored on our servers
- Choose your model: Sonnet, Haiku, or Opus
Premium: bring your own Anthropic API key and pick your model
Frequently asked questions
How much does it cost?
Free to install — you get 50 free credits on install, plus 10 trial messages to try your own API key. No card required. If you want more, credit packs are one-time purchases (no subscription): Starter 100 credits $1.99, Popular 300 credits $4.99, Power 1,000 credits $14.99, Max 3,000 credits $39.99. A credit is worth $0.01, and a typical request uses a few credits. Premium (BYOK) is $2.99/month for unlimited use with your own Anthropic API key.
What AI model does it use?
Geek in the Sheets is powered by Anthropic’s Claude. The default model is Claude Sonnet. Credit users always use Sonnet. Premium (BYOK) users can choose from Sonnet, Haiku, or Opus.
Can it mess up my spreadsheet?
Before every AI change, a snapshot is taken — one-click Undo restores your sheet to before the last change. Honest limits: Undo restores values and formulas (not formatting), covers the most recent change only (single level), works on the first sheet tab, and handles sheets up to 1,000 rows × 50 columns.
What can it access?
The add-on uses the spreadsheets.currentonly scope, which means it can only access the spreadsheet it is opened in — it cannot see the rest of your Google Drive™. It also uses your email address for sign-in.
Where does my API key go?
Your Anthropic API key is never stored on our servers. It is passed along with each request only.
Start for free — no card required. Formulas, data cleaning, and one-click Undo, right inside Google Sheets™.
Get it on the Google Workspace™ Marketplace