# Generate newsletter images with Nano Banana: n8n workflow

> Started by a change in a Google Sheet, and works across Google Sheets, Telegram and X. It hands the judgement calls to OpenAI.

Source: https://millionrounds.com/workflow/generate-newsletter-images-with-nano-banana (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)

# Generate newsletter images with Nano Banana

Started by a change in a Google Sheet, and works across Google Sheets, Telegram and X. It hands the judgement calls to OpenAI. 19 steps, 2 branches, 1 loop or waits: a working afternoon to understand properly.

Medium Calls a model: OpenAI

[Download free](https://millionrounds.com/login?next=%2Fapp%2Fworkflow%2Fgenerate-newsletter-images-with-nano-banana)

**19 steps** Medium: a working afternoon

**2** Branches: places the flow splits

**1** Loop or waits

**3** Services it connects to

## The flow

Starts it 1 Model 4 Logic 3 Service 11

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

- 1 **OpenAI Chat Model** Lm Chat Open Ai *Model*
- 2 **Google Sheets Trigger** Google Sheets trigger *Starts it*
- 3 **OpenAI Chat Model1** Lm Chat Open Ai *Model*
- 4 **Prompt Generator** Agent *Model*
- 5 **Tweet Generator** Agent *Model*
- 6 **Image Gen (Nano Banana)** Http Request *Service*
- 7 **Download Image** Http Request *Service*
- 8 **Wait1** Wait *Logic*
- 9 **Send Tweet image for approval** Telegram *Service*
- 10 **Get Image** Http Request *Service*
- 11 **Send Tweet text for approval** Telegram *Service*
- 12 **Image created** If *Logic*
- 13 **Approved** If *Logic*
- 14 **Add Image URL** Google Sheets *Service*
- 15 **Downlaod Image again** Http Request *Service*
- 16 **Tweet not approved** Google Sheets *Service*
- 17 **post media** Http Request *Service*
- 18 **Create Tweet** Twitter *Service*
- 19 **Tweet posted** Google Sheets *Service*

## How it's built

- **Starts on:** A change in a Google Sheet
- **Steps:** 19, with 2 branches, 1 loop or waits
- **Size:** Medium: a working afternoon
- **Connects to:** Google Sheets, Telegram, X
- **Model:** OpenAI

## Questions

What does it need to run?

An n8n account, plus your own Google Sheets, Telegram 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 change in a Google Sheet.

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.

## 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%2Fgenerate-newsletter-images-with-nano-banana)
- **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)[Telegram](https://millionrounds.com/workflows?service=Telegram#library)[X](https://millionrounds.com/workflows?service=X#library)

## Workflows like it

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

- [**AI News to LinkedIn: Daily Content Engine with Slack Approval** 19 steps · calls a model · Google Sheets, LinkedIn](https://millionrounds.com/workflow/ai-news-to-linkedin-daily-content-engine-with-slack-approval)
- [**AI Podcast Repurposing Engine with LinkedIn and Instagram** 19 steps · calls a model · Google Sheets](https://millionrounds.com/workflow/ai-podcast-repurposing-engine-with-linkedin-and-instagram)
- [**AI-powered social media amplifier with OpenAI and Airtable** 19 steps · calls a model · Airtable, LinkedIn](https://millionrounds.com/workflow/ai-powered-social-media-amplifier-with-openai-and-airtable)
- [**Article to threaded Bluesky posts with JinaAI and Gemini** 19 steps · calls a model · RSS, Telegram](https://millionrounds.com/workflow/article-to-threaded-bluesky-posts-with-jinaai-and-gemini)
- [**Auto create & publish X-threads (Twitter) with OpenAI** 19 steps · calls a model · Telegram](https://millionrounds.com/workflow/auto-create-and-publish-x-threads-twitter-with-openai)
- [**Auto-generate Instagram, Facebook & LinkedIn posts** 19 steps · calls a model · Google Sheets](https://millionrounds.com/workflow/auto-generate-instagram-facebook-and-linkedin-posts)