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Classify event photos from attendees with Gemma AI, Google Drive & Sheets

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Classify event photos from attendees with Gemma AI, Google Drive & Sheets preview
Open on n8n.io

Important notice

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

1. Workflow Overview

There's a clear need for an easier way to manage attendee photos from live events, as current processes for collecting, sharing, and categorizing them are inefficient. n8n can indeed help to solve ...

Best for

  • File Management automation workflows
  • AI Summarization automation workflows
  • advanced n8n builders looking for reusable templates

Tools used

n8n-nodes-base.formtrigger, n8n-nodes-base.splitout, n8n-nodes-base.set, n8n-nodes-base.merge, n8n-nodes-base.httprequest, n8n-nodes-base.googledrive, n8n-nodes-base.editimage, n8n-nodes-base.stickynote

Source and attribution

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

Original n8n.io source

1.1 Workflow description

Title
Classify event photos from attendees with Gemma AI, Google Drive & Sheets
Workflow name
Classify event photos from attendees with Gemma AI, Google Drive & Sheets

There's a clear need for an easier way to manage attendee photos from live events, as current processes for collecting, sharing, and categorizing them are inefficient.

n8n can indeed help to solve this challenge by providing the data input interface via its forms and orchestrate AI-powered classification of images using AI nodes. However, in some cases - say you run regular events or with high attendee counts - the volume of photos may result in unsustainably high inference fees (token usage based billing) which could make the project unviable.

To work around this, Featherless.ai is an AI/LLM inference service which is subscription-based and provides unlimited tokens instead. This means costs are essentially capped for AI usage offering greater control and confidence on AI project budgets.

Check out the final result here: https://docs.google.com/spreadsheets/d/1TpXQyhUq6tB8MLJ3maeWwswjut9wERZ8pSk_3kKhc58/edit?usp=sharing

How it works

  • A form trigger is used share a form interface to guests to upload their photos from their device.
  • The photos are in one branch, are optimised in size before sending to a vision-capable LLM to classify and categorise against a set list of tags. The model inference service is provided by Featherless and takes advantage of their unlimited token usage subscription plan.
  • The photos in another branch are copied into Google Drive for later reference.
  • Once both branches are complete, the classification results and Google Drive link are appended to a Google Sheets table allowing for quick sorting and filtering of all photos.

How to use

  • Use this workflow to gain an incredible productivity boost for social media work. When all photos are organised and filter-ready, editors spend a fraction of the time to get community posts ready and delivered.
  • Sharing the completed Google sheet with attendees helps them to better share memories within their own social circles.

Requirements

  • FeatherLess.ai account for Open Source Multimodal LLMs and unlimited token usage.
  • Google Drive for file storage
  • Google Sheet for organising photos into categories

Customising this workflow

  • Feel free to refine the form with custom styles to match your branding.
  • Swap out Google services with equivalents to match your own environment. eg. Sharepoint and Excel.

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 - On form submission

Type / Role
n8n-nodes-base.formTrigger - formTrigger
Config choices
Version 2.2

Block 2 - Files to Items

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

Block 3 - Get File Meta

Type / Role
n8n-nodes-base.set - set
Config choices
Version 3.4

Block 4 - Merge

Type / Role
n8n-nodes-base.merge - merge
Config choices
Version 3.2

Block 5 - Classify Photo and Suggest Tags

Type / Role
n8n-nodes-base.httpRequest - httpRequest
Config choices
Version 4.2

Block 6 - Extract Categories

Type / Role
n8n-nodes-base.set - set
Config choices
Version 3.4

Block 7 - Upload file

Type / Role
n8n-nodes-base.googleDrive - googleDrive
Config choices
Version 3

Block 8 - Resize Image

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

Block 9 - Get Image Info

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

Block 10 - Merge1

Type / Role
n8n-nodes-base.merge - merge
Config choices
Version 3.2

Block 11 - Create Payload

Type / Role
n8n-nodes-base.set - set
Config choices
Version 3.4

Block 12 - Sticky Note

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

Block 13 - Sticky Note1

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

Block 14 - Sticky Note2

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

Block 15 - Sticky Note3

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

Block 16 - Sticky Note4

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

Block 17 - Convert Image to Base64

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

Block 18 - Append to Sheet

Type / Role
n8n-nodes-base.googleSheets - googleSheets
Config choices
Version 4.6

Block 19 - Sticky Note5

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

Block 20 - Sticky Note9

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

3. Summary Table

Workflow Classify event photos from attendees with Gemma AI, Google Drive & Sheets
Complexity advanced
Nodes 20
Categories File Management, AI Summarization
Author Jimleuk
Published 28 Jul 2025

4. Reproducing the Workflow from Scratch

  1. 1. Download the workflow JSON

    Use the JSON export at /data/workflows/6575/6575.json as the source template for this automation.

  2. 2. Import the template into n8n

    Open n8n, import the downloaded JSON, and review each node before activating the workflow.

  3. 3. Configure credentials and variables

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

  4. 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. 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.

Frequently asked questions

What does Classify event photos from attendees with Gemma AI, Google Drive & Sheets do?

There's a clear need for an easier way to manage attendee photos from live events, as current processes for collecting, sharing, and categorizing them are inefficient. n8n can indeed help to solve ...

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 File Management, AI Summarization use case.