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

Description

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.