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

JimleukJimleuk
1175 views
2/3/2026
AIStreamingAssistantWebhookOpenAI
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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.

Classify Event Photos from Attendees with Gemma AI, Google Drive & Google Sheets

This n8n workflow automates the process of classifying event photos uploaded by attendees. It leverages Google Drive for photo storage, Google Sheets for managing attendee information and photo URLs, and an AI model (presumably Gemma AI, based on the directory name) for image classification.

The workflow is designed to process new photo submissions, extract image data, send it for AI classification, and then update a Google Sheet with the classification results and a public link to the image.

What it does

  1. Triggers on Form Submission: The workflow starts when a new form is submitted, likely containing information about an attendee's photo submission.
  2. Extracts File Data: It extracts the image file from the submitted form data.
  3. Uploads to Google Drive: The extracted image is uploaded to a specified folder in Google Drive.
  4. Generates Public Link: After uploading, it generates a public shareable link for the uploaded image.
  5. Prepares Image for AI: The image is then processed (e.g., resized or converted) by the "Edit Image" node, likely to optimize it for the AI model.
  6. Sends to AI for Classification: The prepared image is sent via an HTTP Request to an AI endpoint (e.g., Gemma AI) for classification.
  7. Processes AI Response: The workflow merges the AI classification results with the original form submission data and the Google Drive link.
  8. Updates Google Sheet: Finally, it appends a new row to a Google Sheet, including the attendee's information, the Google Drive public link, and the AI classification results.

Prerequisites/Requirements

  • n8n Instance: A running n8n instance.
  • Google Drive Account: Configured Google Drive credentials in n8n with access to the target folder for photo uploads.
  • Google Sheets Account: Configured Google Sheets credentials in n8n with access to the target spreadsheet.
  • AI Service/Endpoint: Access to an AI image classification service (e.g., Gemma AI) with an accessible HTTP endpoint. This will require an API key or other authentication method configured in the "HTTP Request" node.
  • Form Submission Mechanism: A form that triggers this workflow (e.g., an n8n Form Trigger, a webhook from another form service).

Setup/Usage

  1. Import the Workflow: Import the provided JSON into your n8n instance.
  2. Configure Credentials:
    • Google Drive: Set up your Google Drive OAuth2 credentials.
    • Google Sheets: Set up your Google Sheets OAuth2 credentials.
    • AI Service: Configure the "HTTP Request" node with the URL of your AI classification endpoint and any necessary authentication (e.g., API key in headers or query parameters).
  3. Configure Nodes:
    • On form submission (Form Trigger): Configure the form fields to match your submission form.
    • Google Drive: Specify the Google Drive folder ID where photos should be uploaded.
    • Edit Image: Adjust image manipulation settings if needed for your AI model.
    • Google Sheets: Specify the Spreadsheet ID and Sheet Name where the data should be appended. Map the input fields to the correct columns in your Google Sheet.
  4. Activate the Workflow: Once configured, activate the workflow. It will now automatically process new form submissions.

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