# Create & Publish Instagram Carousel Posts with OpenAI: n8n workflow

> Started by a clock, and works across Google Sheets and in-memory vectors. It puts OpenAI and OpenRouter behind a retrieval step, so answers are drawn from...

Source: https://millionrounds.com/workflow/create-and-publish-instagram-carousel-posts-with-openai (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)

# Create & Publish Instagram Carousel Posts with OpenAI

Started by a clock, and works across Google Sheets and in-memory vectors. It puts OpenAI and OpenRouter behind a retrieval step, so answers are drawn from documents you supply rather than from the model alone. 17 steps: a working afternoon to understand properly.

Medium Calls a model: OpenAI, OpenRouter Retrieval

[Download free](https://millionrounds.com/login?next=%2Fapp%2Fworkflow%2Fcreate-and-publish-instagram-carousel-posts-with-openai)

**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 9 Logic 2 Service 4

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

- 1 **Schedule Trigger** Schedule trigger *Starts it*
- 2 **When clicking ‘Test workflow’** Manual trigger *Starts it*
- 3 **OpenAI Chat Model** Lm Chat Open Ai *Model*
- 4 **Embeddings OpenAI** Embeddings Open Ai *Model*
- 5 **Simple Memory** Memory Buffer Window *Model*
- 6 **OpenRouter Chat Model** Lm Chat Open Router *Model*
- 7 **generate search term** Code *Logic*
- 8 **AI Agent** Agent *Model*
- 9 **Simple Vector Store** Vector Store In Memory *Model*
- 10 **Simple Vector Store1** Vector Store In Memory *Model*
- 11 **Answer questions with a vector store** Tool Vector Store *Model*
- 12 **Parsear JSON Inicial** Code *Logic*
- 13 **save in sheets** Google Sheets *Service*
- 14 **generate image** Open Ai *Model*
- 15 **upload image to imgur** Http Request *Service*
- 16 **create container** Http Request *Service*
- 17 **POst to instagram** Http Request *Service*

## How it's built

- **Starts on:** A clock
- **Steps:** 17
- **Size:** Medium: a working afternoon
- **Connects to:** Google Sheets, in-memory vectors
- **Model:** OpenAI, OpenRouter
- **Retrieval:** Answers are drawn from documents you supply, not from the model alone

## Questions

What does it need to run?

An n8n account, plus your own Google Sheets and in-memory vectors accounts, and a key for OpenAI and OpenRouter. 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 and OpenRouter. Its answers draw on documents you give it, not on the model alone. 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%2Fcreate-and-publish-instagram-carousel-posts-with-openai)
- **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.

[Google Sheets](https://millionrounds.com/workflows?service=Google+Sheets#library)[in-memory vectors](https://millionrounds.com/workflows?service=in-memory+vectors#library)

## Workflows like it

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

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- [**Auto-upload Instagram videos to YouTube with Google Sheets** 17 steps · calls a model · Google Sheets, YouTube](https://millionrounds.com/workflow/auto-upload-instagram-videos-to-youtube-with-google-sheets)
- [**Automate SEO content creation with Google SERP and Claude** 17 steps · calls a model · Google Sheets, WordPress](https://millionrounds.com/workflow/automate-seo-content-creation-with-google-serp-and-claude)
- [**Automate daily Hindu festival posts on X with Gemini** 17 steps · calls a model · Google Sheets, X](https://millionrounds.com/workflow/automate-daily-hindu-festival-posts-on-x-with-gemini)