Automation library · Content

Create and post social media image captions with OpenAI

Started by a clock, and works across Google Sheets, LinkedIn and X. It hands the judgement calls to OpenAI. 19 steps, 1 branch, 2 loops or waits: a working afternoon to understand properly.

MediumCalls a model: OpenAI

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19 stepsMedium: a working afternoon
1Branch: places the flow splits
2Loops or waits
3Services it connects to

The flow

Starts it 2Model 1Logic 4Service 12

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

  1. 1When clicking ‘Execute workflow’Manual triggerStarts it
  2. 2Schedule social media postsSchedule triggerStarts it
  3. 3Post TopicSetLogic
  4. 4get sheet dataGoogle SheetsService
  5. 5Generate CaptionOpen AiModel
  6. 6Loop Over ItemsSplit In BatchesLogic
  7. 7Append row in sheetGoogle SheetsService
  8. 8RouteSwitchLogic
  9. 9Instagram IMGFacebook Graph ApiService
  10. 10Get Media2Http RequestService
  11. 11Post Facebook ImgHttp RequestService
  12. 12Get MediaHttp RequestService
  13. 13WaitWaitLogic
  14. 14Post X ImgHttp RequestService
  15. 15Facebook PostFacebook Graph ApiService
  16. 16Linkedin PostLinked InService
  17. 17Instagram PostFacebook Graph ApiService
  18. 18Create TweetTwitterService
  19. 19Update SheetGoogle SheetsService

How it's built

Starts on
A clock
Steps
19, with 1 branch, 2 loops or waits
Size
Medium: a working afternoon
Connects to
Google Sheets, LinkedIn, X
Model
OpenAI

Questions

What does it need to run?

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

What starts it?

It starts on a clock.

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. 19 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 19 steps before you point it at anything that matters.