# YouTube video comment analysis agent with OpenAI and Gmail: n8n workflow

> Started by an event in a connected app, and works across Gmail and Google Drive. It hands the judgement calls to OpenAI.

Source: https://millionrounds.com/workflow/youtube-video-comment-analysis-agent-with-openai-and-gmail (Millionrounds; every figure on the page links to its filing or article)

[Automation library](https://millionrounds.com/workflows) · [Content](https://millionrounds.com/workflows?category=Content#library)

# YouTube video comment analysis agent with OpenAI and Gmail

Started by an event in a connected app, and works across Gmail and Google Drive. It hands the judgement calls to OpenAI. 17 steps: a working afternoon to understand properly.

Medium Calls a model: OpenAI

[Download free](https://millionrounds.com/login?next=%2Fapp%2Fworkflow%2Fyoutube-video-comment-analysis-agent-with-openai-and-gmail)

**17 steps** Medium: a working afternoon

**0** Branches: places the flow splits

**0** Loops or waits

**2** Services it connects to

## The flow

Starts it 2 Model 2 Logic 8 Service 5

The steps in the order they run, from what starts it.

- 1 **When Executed by Another Workflow** Execute Workflow trigger *Starts it*
- 2 **When clicking ‘Test workflow’** Manual trigger *Starts it*
- 3 **Create YouTube API URL for Comments** Code *Logic*
- 4 **gpt-4o-mini** Lm Chat Open Ai *Model*
- 5 **Workflow Variables** Set *Logic*
- 6 **Get YouTube Video Comments** Http Request *Service*
- 7 **YouTube Video Report Agent** Agent *Model*
- 8 **Create YouTube API URL** Code *Logic*
- 9 **Get Video Comments with Pagination** Code *Logic*
- 10 **Markdown to HTML** Markdown *Logic*
- 11 **Get YouTube Video Details** Http Request *Service*
- 12 **Split Out Comments** Split Out *Logic*
- 13 **Gmail Report** Gmail *Service*
- 14 **Save Report to Google Drive** Google Drive *Service*
- 15 **Merge YouTube Details & Transcript** Merge *Logic*
- 16 **Combine Comments** Summarize *Service*
- 17 **Create One JSON Object** Aggregate *Logic*

## How it's built

- **Starts on:** An event in a connected app
- **Steps:** 17
- **Size:** Medium: a working afternoon
- **Connects to:** Gmail, Google Drive
- **Model:** OpenAI

## Questions

What does it need to run?

An n8n account, plus your own Gmail and Google Drive accounts, and a key for OpenAI. You connect your own accounts after importing it; none are included.

What starts it?

It starts on an event in a connected app.

Does it use AI?

Yes. It calls OpenAI. Model calls are billed by the provider, not by n8n.

How long does it take to set up?

Plan an afternoon. 17 steps is enough that you should read each one before running it.

How do I import it?

Copy the workflow, open a new workflow in n8n and paste. The steps appear on the canvas, ready for your own accounts.

**Before you run it**

Nothing here has been tested by us. It is somebody's working automation, read and described from its own steps. Treat the connections it wants as a list of accounts it will touch, and read the 17 steps before you point it at anything that matters.

## Run it in n8n

- **Create your n8n account** Free to start. n8n is where the workflow runs. [Create an n8n account ↗](https://millionrounds.com/n8n)
- **Download the workflow** Free with a Millionrounds account. [Download free](https://millionrounds.com/login?next=%2Fapp%2Fworkflow%2Fyoutube-video-comment-analysis-agent-with-openai-and-gmail)
- **Paste it into n8n** Open a new workflow in n8n and paste. Then connect your own accounts.

Stored with the author's traces removed: canvas notes, instance identifiers, saved credential names and any live document they had left behind.

## Connects to

Each opens the other workflows that use it.

[Gmail](https://millionrounds.com/workflows?service=Gmail#library)[Google Drive](https://millionrounds.com/workflows?service=Google+Drive#library)

## Workflows like it

Also content, with the same services where possible, closest in size first.

- [**Auto-generate LinkedIn content with Gemini** 17 steps · calls a model · Google Drive, Google Sheets](https://millionrounds.com/workflow/auto-generate-linkedin-content-with-gemini)
- [**Auto-generate WordPress articles from news with Claude** 17 steps · calls a model · Gmail, Google Sheets](https://millionrounds.com/workflow/auto-generate-wordpress-articles-from-news-with-claude)
- [**Automate research-based newsletters with Perplexity** 17 steps · calls a model · Gmail, Google Cloud Storage](https://millionrounds.com/workflow/automate-research-based-newsletters-with-perplexity)
- [**Autometed personalized AI tech newsletter with RSS and OpenAI** 17 steps · calls a model · Gmail, RSS](https://millionrounds.com/workflow/autometed-personalized-ai-tech-newsletter-with-rss-and-opena)
- [**Create YouTube videos with OpenAI and ElevenLabs** 17 steps · calls a model · Google Drive](https://millionrounds.com/workflow/create-youtube-videos-with-openai-and-elevenlabs)
- [**Create a private document Q&A system with Llama3 and Postgres** 17 steps · calls a model · Google Drive, Qdrant](https://millionrounds.com/workflow/create-a-private-document-q-and-a-system-with-llama3-and-pos)