Last updated 07-23-2026
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Synterrix
Synterrix is a Google Sheets add-on that brings OpenAI models, fine-tuning, bulk prompting, and web scraping into the spreadsheet you already use. Install it from the Google Workspace Marketplace and run marketing, sales, SEO, and operations workflows without leaving Sheets.
The product centers on scale. You can train custom models on rows in a spreadsheet, execute thousands of prompts with cell references, autocomplete repetitive work from a few examples, and pull text from URLs or Google Docs in bulk. It ships with 60+ pre-built templates for SEO, ecommerce, sales, and content ops, or you can build workflows from a blank sheet.
Synterrix targets lean teams and agencies that want spreadsheet-native automation instead of juggling separate chat tools. Pricing starts with a short free trial, and higher tiers let you connect your own OpenAI API key for unlimited usage.
Train fine-tuned models on spreadsheet data and deploy them in Sheets or elsewhere
Fire thousands of prompts at once with cell references and built-in API load management
Autocomplete repetitive tasks from just a couple of examples using few-shot prompting
Process image URLs in bulk for descriptions, copy, or product categorization
Scrape text from URLs and Google Docs, targeting specific HTML elements when needed
Pull real-time Google Search context into prompts for research and data enrichment
Turn plain-language requests into Google Sheets formulas across 500+ supported functions
Ships with 60+ pre-built templates for SEO, ecommerce, sales, and content workflows.
Runs bulk prompts, scraping, and fine-tuning without leaving Google Sheets.
You can start without an OpenAI account because Synterrix routes prompts through its own setup.
Higher tiers support bring-your-own OpenAI API key for unlimited usage.
Works only as a Google Sheets add-on, not a standalone web app.
Fine-tuning and advanced model usage require your own OpenAI API key with extra charges.
Implementation support is not included on Personal, Growth, or Business plans.
Character quotas expire after 30 days if unused.
Does Synterrix offer a free trial?
Yes. Synterrix offers a 3-day free trial on its paid plans. You can cancel before the trial ends for a refund under its no-questions-asked policy.
Do I need my own OpenAI API key to use Synterrix?
No for basic use. Synterrix runs prompts through its own OpenAI account with fine-tuned prompts, so you can start without one. Growth, Business, and fine-tuning features may require your own API key, with additional OpenAI charges.
What can Synterrix do inside Google Sheets?
Synterrix supports bulk AI prompts, fine-tuned models, few-shot autocomplete, image URL processing, formula generation, and text extraction from URLs or Google Docs. All of this runs as a Google Sheets add-on.
What pricing plans does Synterrix offer?
Synterrix offers Personal, Growth, Business, and Enterprise plans. Personal starts at $12.50 per user per month (or $9.50 billed annually). Growth and Business add higher character quotas, more extractions, and more fine-tuned models. Enterprise is custom.
How does Synterrix calculate character usage?
Synterrix counts both prompt inputs and model completions toward your monthly character quota. Plan credits expire after 30 days.
Can I fine-tune AI models with my own data in Synterrix?
Yes. Synterrix lets you train task-specific models from spreadsheet rows, add more examples over time, and run them inside Google Sheets or externally. Fine-tuning requires your own OpenAI API key on supported plans.