Beginner Tutorial: AI Evaluation Tool with Gemini & Google Sheets

A beginner-friendly n8n workflow tutorial that demonstrates using the Evaluation tool to score AI outputs against ground truth from Google Sheets, powered by Google Gemini and a Calculator tool.

This workflow serves as an accessible tutorial for n8n beginners, showcasing the Evaluation tool to automatically assess AI-generated answers against predefined correct responses (ground truth) stored in Google Sheets. It integrates Google Gemini as the AI model within an AI Agent node equipped with a Calculator tool for precise computations, enabling reliable handling of math-based queries like 'How much is 8 * 3?'. The workflow supports two modes: Manual Test Mode, triggered by clicking 'Exec
Platform
n8n
Category
AI & Machine Learning
Price
$14.99
Creator
Jordi Faber

How to import this workflow into n8n

  1. 1Purchase or download the workflow to get the n8n workflow JSON file.
  2. 2In your n8n instance, open Workflows and choose "Import from File" (or paste the JSON with Ctrl+V on the canvas).
  3. 3Open each node marked with a credential warning and connect your own accounts and API keys.
  4. 4Run the workflow once manually to verify the data flow, then toggle it to Active.

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