Automation library · Content

Generate AI YouTube comments and replies from a video URL

Started by someone submitting a form, and works across Google Sheets. It hands the judgement calls to OpenAI. 18 steps: a working afternoon to understand properly.

MediumCalls a model: OpenAI

18 stepsMedium: a working afternoon
0Branches: places the flow splits
0Loops or waits
1Service it connects to

The flow

Starts it 1Model 5Logic 9Service 3

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

  1. 1Video URL Input FormForm triggerStarts it
  2. 2OpenAI Chat ModelLm Chat Open AiModel
  3. 3Structured Output ParserOutput Parser StructuredModel
  4. 4Video Comment ParserOutput Parser StructuredModel
  5. 5Extract Video ID from URLCodeLogic
  6. 6Comment Response GeneratorAgentModel
  7. 7Video Comment GeneratorAgentModel
  8. 8Get Video StatisticsHttp RequestService
  9. 9Add VideoId to RepliesSetLogic
  10. 10Add VideoId to VideoCommentsSetLogic
  11. 11Format Video DataCodeLogic
  12. 12Merge Wait for Video CommentMergeLogic
  13. 13Get Video CommentsHttp RequestService
  14. 14Prepare Sheet DataSetLogic
  15. 15Extract CommentsSetLogic
  16. 16Save to Google SheetsGoogle SheetsService
  17. 17Process Each CommentCodeLogic
  18. 18Select Top 10 CommentsCodeLogic

How it's built

Starts on
Someone submitting a form
Steps
18
Size
Medium: a working afternoon
Connects to
Google Sheets
Model
OpenAI

Questions

What does it need to run?

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

What starts it?

It starts on someone submitting a form.

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. 18 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 18 steps before you point it at anything that matters.