Summarize YouTube Videos with GPT-4o-mini and Apify Transcripts

This workflow contains community nodes that are only compatible with the self-hosted version of n8n.

This workflow automates summarizing YouTube videos by accepting a YouTube URL via a form, fetching the video transcript using Apify, and then generating a concise summary with OpenAI GPT.

Setup Instructions

Prerequisites:

• Apify account with access to the YouTube Transcript actor.
• OpenAI API key (for GPT-4o-mini model).
• n8n instance with the Apify and OpenAI credentials configured.

Configuration Steps

Apify Setup:

• Configure Apify API credentials in the Apify node.
• Ensure the YouTube Transcript actor ID (1s7eXiaukVuOr4Ueg) is correct.

OpenAI Setup:

• Add your OpenAI API key in the OpenAI Chat Model node.
• Confirm model selection is set to gpt-4o-mini.

Customization

• Modify form field to accept additional inputs if needed.
• Adjust Apify actor input JSON in the Payload node for extra metadata extraction.
• Customize the summarization options to tweak summary length or style.
• Change OpenAI prompt or model parameters in the OpenAI Chat Model node for different output quality or tone.

Steps

1. On Form Submission

• Node: Form Trigger
• Purpose: Collect the YouTube video URL from the user via a web form.

2. Prepare Payload

• Node: Set
• Purpose: Format the YouTube URL and options into the JSON payload for Apify input.

3. Fetch Transcript

• Node: Apify
• Purpose: Run the YouTube Transcript actor to retrieve video captions and metadata.

4. Extract Captions

• Purpose: Isolate the captions field from the Apify response for processing.

5. Summarize Transcript

• Purpose: Generate a concise summary of the video captions.