Evaluate AI workflows using Google Sheets, Gemini, Claude, GPT, and Perplexity

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Important notice

This workflow is provided as-is. Please review and test before using in production.

1. Workflow Overview

This template and YouTube video goes over 5 different implementations of evaluations within n8n. Categorization Correctness Tools used String similarity Helpfulness You’ll learn when to use each ty...

Best for

Engineering automation workflows
AI Summarization automation workflows
advanced n8n builders looking for reusable templates

Tools used

n8n-nodes-base.evaluation, n8n-nodes-base.evaluationtrigger, @n8n/n8n-nodes-langchain.lmchatgooglegemini, n8n-nodes-base.stickynote, @n8n/n8n-nodes-langchain.lmchatanthropic, n8n-nodes-base.perplexitytool, @n8n/n8n-nodes-langchain.lmchatopenai, n8n-nodes-base.gmailtrigger

Source and attribution

This workflow is cataloged by N8N Workflows and links back to its original n8n.io source page by Ryan Nolan.

Original n8n.io source

1.1 Workflow description

Title: Evaluate AI workflows using Google Sheets, Gemini, Claude, GPT, and Perplexity
Workflow name: Evaluate AI workflows using Google Sheets, Gemini, Claude, GPT, and Perplexity

This template and YouTube video goes over 5 different implementations of evaluations within n8n.

Categorization
Correctness
Tools used
String similarity
Helpfulness

You’ll learn when to use each type, how to set up test datasets in Google Sheets or data tables, and how to track your results over time. I also explain best practices like only changing one variable at a time, documenting your prompts and model settings, and building proper training datasets with enough examples to confidently validate your workflow.

YouTube Video: https://www.youtube.com/watch?v=-4LXYOhQ-Z0

Thank you for downloading our free n8n Evaluations template. If you enjoyed the template + tutorial please subscribe to the YouTube channel. We are uploading weekly content on AI/n8n

Connect With Us Check out the links down below. If you need help with this template, want 1:1 coaching, or have a n8n project you want to build, reach out at [email protected]

Free Skool AI/n8n Group: https://www.skool.com/data-and-ai LinkedIn: https://www.linkedin.com/in/ryan-p-nolan/ Twitter/X:https://x.com/RyanMattDS Website: https://ryanandmattdatascience.com/

1.2 Logical Blocks

This catalog entry is organized from the workflow JSON. The node-level section below shows the executable blocks available for review before importing the template.

2. Block-by-Block Analysis

Block 1 - Evaluation

Type / Role: n8n-nodes-base.evaluation - evaluation
Config choices: Version 4.8

Block 2 - Evaluation3

Type / Role: n8n-nodes-base.evaluation - evaluation
Config choices: Version 4.8

Block 3 - When fetching a dataset row

Type / Role: n8n-nodes-base.evaluationTrigger - evaluationTrigger
Config choices: Version 4.7

Block 4 - Google Gemini Chat Model

Type / Role: @n8n/n8n-nodes-langchain.lmChatGoogleGemini - lmChatGoogleGemini
Config choices: Version 1

Block 5 - Evaluation5

Type / Role: n8n-nodes-base.evaluation - evaluation
Config choices: Version 4.8

Block 6 - Sticky Note2

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 7 - When fetching a dataset row1

Type / Role: n8n-nodes-base.evaluationTrigger - evaluationTrigger
Config choices: Version 4.7

Block 8 - Evaluation4

Type / Role: n8n-nodes-base.evaluation - evaluation
Config choices: Version 4.8

Block 9 - Sticky Note3

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 10 - Evaluation6

Type / Role: n8n-nodes-base.evaluation - evaluation
Config choices: Version 4.8

Block 11 - Sticky Note4

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 12 - Evaluation7

Type / Role: n8n-nodes-base.evaluation - evaluation
Config choices: Version 4.8

Block 13 - Sticky Note5

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 14 - Sticky Note6

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 15 - Evaluation8

Type / Role: n8n-nodes-base.evaluation - evaluation
Config choices: Version 4.8

Block 16 - Sticky Note7

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 17 - Sticky Note

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 18 - Evaluation1

Type / Role: n8n-nodes-base.evaluation - evaluation
Config choices: Version 4.8

Block 19 - Evaluation9

Type / Role: n8n-nodes-base.evaluation - evaluation
Config choices: Version 4.8

Block 20 - When fetching a dataset row2

Type / Role: n8n-nodes-base.evaluationTrigger - evaluationTrigger
Config choices: Version 4.7

Block 21 - Evaluation10

Type / Role: n8n-nodes-base.evaluation - evaluation
Config choices: Version 4.8

Block 22 - Sticky Note1

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 23 - Evaluation2

Type / Role: n8n-nodes-base.evaluation - evaluation
Config choices: Version 4.8

Block 24 - Evaluation11

Type / Role: n8n-nodes-base.evaluation - evaluation
Config choices: Version 4.8

Showing the first 24 of 64 workflow blocks. Download the JSON for the full node graph.

3. Summary Table

Workflow	Evaluate AI workflows using Google Sheets, Gemini, Claude, GPT, and Perplexity
Complexity	advanced
Nodes	64
Categories	Engineering, AI Summarization
Author	Ryan Nolan
Published	11 Jan 2026

4. Reproducing the Workflow from Scratch

1. Download the workflow JSON

Use the JSON export at /data/workflows/12644/12644.json as the source template for this automation.
2. Import the template into n8n

Open n8n, import the downloaded JSON, and review each node before activating the workflow.
3. Configure credentials and variables

Replace placeholder credentials, API keys, webhook URLs, account IDs, and environment-specific values with your own settings.
4. Test with sample data

Run the workflow manually or in a staging workspace, inspect node output, and confirm downstream systems receive the expected data.
5. Activate and monitor

Enable the workflow only after testing, then monitor executions, errors, and rate limits during the first production runs.

5. General Notes & Resources

Review imported nodes carefully before activation. This catalog entry is intended to help you inspect the workflow structure, understand required services, and find related templates faster.

Node names, credentials, schedules, webhook paths, and external service limits may need adjustment for your workspace.

Download workflow JSON Original n8n.io source Engineering workflows AI Summarization workflows

Frequently asked questions

What does Evaluate AI workflows using Google Sheets, Gemini, Claude, GPT, and Perplexity do?

What do I need before importing this workflow?

Review the workflow JSON, configure any required credentials in n8n, and test the automation in a safe workspace before using it in production.

Can I customize this workflow?

Yes. Use the block-by-block analysis and the downloadable JSON to inspect each node, then adjust credentials, prompts, schedules, filters, or destinations for your Engineering, AI Summarization use case.

Ryan Nolan

3 workflows

Nodes

n8n-nodes-base.evaluation n8n-nodes-base.evaluationtrigger @n8n/n8n-nodes-langchain.lmchatgooglegemini n8n-nodes-base.stickynote @n8n/n8n-nodes-langchain.lmchatanthropic n8n-nodes-base.perplexitytool @n8n/n8n-nodes-langchain.lmchatopenai n8n-nodes-base.gmailtrigger

Complexity

advanced

Published 11 Jan 2026

Likes 0

View on n8n.io Download Workflow

Install path: /data/workflows/12644/12644.json

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Evaluate AI workflows using Google Sheets, Gemini, Claude, GPT, and Perplexity

Workflow preview

Important notice

1. Workflow Overview

Best for

Tools used

Source and attribution

1.1 Workflow description

1.2 Logical Blocks

2. Block-by-Block Analysis

Block 1 - Evaluation

Block 2 - Evaluation3

Block 3 - When fetching a dataset row

Block 4 - Google Gemini Chat Model

Block 5 - Evaluation5

Block 6 - Sticky Note2

Block 7 - When fetching a dataset row1

Block 8 - Evaluation4

Block 9 - Sticky Note3

Block 10 - Evaluation6

Block 11 - Sticky Note4

Block 12 - Evaluation7

Block 13 - Sticky Note5

Block 14 - Sticky Note6

Block 15 - Evaluation8

Block 16 - Sticky Note7

Block 17 - Sticky Note

Block 18 - Evaluation1

Block 19 - Evaluation9

Block 20 - When fetching a dataset row2

Block 21 - Evaluation10

Block 22 - Sticky Note1

Block 23 - Evaluation2

Block 24 - Evaluation11

3. Summary Table

4. Reproducing the Workflow from Scratch

1. Download the workflow JSON

2. Import the template into n8n

3. Configure credentials and variables

4. Test with sample data

5. Activate and monitor

5. General Notes & Resources

Frequently asked questions