Post daily AI-generated Instagram images from Google Sheets with GPT-4.1 Nano and Google Gemini

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1. Workflow Overview

A fully automated n8n workflow that runs every day at 1:10 PM IST and publishes a fresh AI generated image to Instagram — zero manual effort required after setup. It reads content ideas from a Goog...

Best for

Social Media automation workflows
Multimodal AI automation workflows
advanced n8n builders looking for reusable templates

Tools used

n8n-nodes-base.scheduletrigger, @n8n/n8n-nodes-langchain.googlegemini, n8n-nodes-uploadtourl.uploadtourl, @mookielianhd/n8n-nodes-instagram.instagram, n8n-nodes-base.googlesheets, n8n-nodes-base.stickynote, @n8n/n8n-nodes-langchain.lmchatopenai, @n8n/n8n-nodes-langchain.chainllm

Source and attribution

This workflow is cataloged by N8N Workflows and links back to its original n8n.io source page by Jitesh Dugar.

Original n8n.io source

1.1 Workflow description

Title: Post daily AI-generated Instagram images from Google Sheets with GPT-4.1 Nano and Google Gemini
Workflow name: Post daily AI-generated Instagram images from Google Sheets with GPT-4.1 Nano and Google Gemini

A fully automated n8n workflow that runs every day at 1:10 PM IST and publishes a fresh AI-generated image to Instagram — zero manual effort required after setup.

It reads content ideas from a Google Sheet, uses GPT-4.1 Nano to craft a cinematic image prompt and a niche-matched caption, generates the image with Google Gemini 2.5 Flash, uploads it to a public CDN called Upload to Url (https://uploadtourl.com) , posts it to Instagram, and logs everything back to the sheet.

✨ What This Workflow Does

Triggers daily at 1:10 PM IST via Schedule Trigger
Fetches a pending idea from a Google Sheet where Status = "Ready"
Generates an image prompt + caption using GPT-4.1 Nano — tailored to the niche's aesthetic (luxury, minimalist, vibrant, etc.)
Creates the image using Google Gemini 2.5 Flash Image model
Uploads the image to a public CDN via UploadToURL (https://uploadtourl.com)
Posts to Instagram as a feed post with the AI-generated caption
Updates the Google Sheet row with the prompt, caption, image URL, and status "Posted"

🛠 Tools & Services Used

Tool	Purpose
n8n Schedule Trigger	Fires the workflow daily at 13:10
Google Sheets	Stores content ideas and tracks post status
OpenAI GPT-4.1 Nano	Generates image prompts and Instagram captions
Google Gemini 2.5 Flash Image	Generates the AI image from the prompt
UploadToURL	Hosts the image on a public CDN
Instagram Graph API	Publishes the image as a feed post

📋 Google Sheet Structure

Your sheet (Instagram Posting) needs these columns:

Column	Description
`Idea/Niche`	The content topic (e.g. Minimalist Home, Luxury Cars)
`Status`	Set to `Ready` to queue a post; auto-updated to `Posted`
`Prompt`	Auto-filled with the AI-generated image prompt
`Caption`	Auto-filled with the AI-generated Instagram caption
`Image_URL`	Auto-filled with the CDN-hosted image link

⚙️ Setup Requirements

Google Sheets OAuth2 credentials connected to your spreadsheet
OpenAI API key (GPT-4.1 Nano)
Google Gemini (PaLM) API key
UploadToURL account and API credentials
Instagram Graph API credentials (connected Business/Creator account)

💡 How to Use

Add your content ideas to the Google Sheet with Status = "Ready"
Import this workflow into your n8n instance
Connect all credentials
Activate the workflow — it will auto-post daily at 1:10 PM IST

1.2 Logical Blocks

This catalog entry is organized from the workflow JSON. The node-level section below shows the executable blocks available for review before importing the template.

2. Block-by-Block Analysis

Block 1 - Schedule Trigger

Type / Role: n8n-nodes-base.scheduleTrigger - scheduleTrigger
Config choices: Version 1.3

Block 2 - Generate an image

Type / Role: @n8n/n8n-nodes-langchain.googleGemini - googleGemini
Config choices: Version 1.1

Block 3 - Upload a File

Type / Role: n8n-nodes-uploadtourl.uploadToUrl - uploadToUrl
Config choices: Version 1

Block 4 - Publish

Type / Role: @mookielianhd/n8n-nodes-instagram.instagram - instagram
Config choices: Version 1

Block 5 - Update row in sheet

Type / Role: n8n-nodes-base.googleSheets - googleSheets
Config choices: Version 4.7

Block 6 - Get-Ideas

Type / Role: n8n-nodes-base.googleSheets - googleSheets
Config choices: Version 4.7

Block 7 - Sticky Note

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 8 - OpenAI Chat Model1

Type / Role: @n8n/n8n-nodes-langchain.lmChatOpenAi - lmChatOpenAi
Config choices: Version 1.3

Block 9 - Generate-Prompt-and-Caption

Type / Role: @n8n/n8n-nodes-langchain.chainLlm - chainLlm
Config choices: Version 1.9

Block 10 - Sticky Note1

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 11 - Sticky Note2

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 12 - Sticky Note3

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 13 - Sticky Note4

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 14 - Sticky Note5

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 15 - Sticky Note6

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 16 - Sticky Note7

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

3. Summary Table

Workflow	Post daily AI-generated Instagram images from Google Sheets with GPT-4.1 Nano and Google Gemini
Complexity	advanced
Nodes	16
Categories	Social Media, Multimodal AI
Author	Jitesh Dugar
Published	28 Apr 2026

4. Reproducing the Workflow from Scratch

1. Download the workflow JSON

Use the JSON export at /data/workflows/15364/15364.json as the source template for this automation.
2. Import the template into n8n

Open n8n, import the downloaded JSON, and review each node before activating the workflow.
3. Configure credentials and variables

Replace placeholder credentials, API keys, webhook URLs, account IDs, and environment-specific values with your own settings.
4. Test with sample data

Run the workflow manually or in a staging workspace, inspect node output, and confirm downstream systems receive the expected data.
5. Activate and monitor

Enable the workflow only after testing, then monitor executions, errors, and rate limits during the first production runs.

5. General Notes & Resources

Review imported nodes carefully before activation. This catalog entry is intended to help you inspect the workflow structure, understand required services, and find related templates faster.

Node names, credentials, schedules, webhook paths, and external service limits may need adjustment for your workspace.

Download workflow JSON Original n8n.io source Social Media workflows Multimodal AI workflows

Frequently asked questions

What does Post daily AI-generated Instagram images from Google Sheets with GPT-4.1 Nano and Google Gemini do?

What do I need before importing this workflow?

Review the workflow JSON, configure any required credentials in n8n, and test the automation in a safe workspace before using it in production.

Can I customize this workflow?

Yes. Use the block-by-block analysis and the downloadable JSON to inspect each node, then adjust credentials, prompts, schedules, filters, or destinations for your Social Media, Multimodal AI use case.

Jitesh Dugar

133 workflows

Nodes

n8n-nodes-base.scheduletrigger @n8n/n8n-nodes-langchain.googlegemini n8n-nodes-uploadtourl.uploadtourl @mookielianhd/n8n-nodes-instagram.instagram n8n-nodes-base.googlesheets n8n-nodes-base.stickynote @n8n/n8n-nodes-langchain.lmchatopenai @n8n/n8n-nodes-langchain.chainllm

Complexity

advanced

Published 28 Apr 2026

Likes 0

View on n8n.io Download Workflow

Install path: /data/workflows/15364/15364.json

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Post daily AI-generated Instagram images from Google Sheets with GPT-4.1 Nano and Google Gemini

Workflow preview

1. Workflow Overview

Best for

Tools used

Source and attribution

1.1 Workflow description

✨ What This Workflow Does

🛠 Tools & Services Used

📋 Google Sheet Structure

⚙️ Setup Requirements

💡 How to Use

1.2 Logical Blocks

2. Block-by-Block Analysis

Block 1 - Schedule Trigger

Block 2 - Generate an image

Block 3 - Upload a File

Block 4 - Publish

Block 5 - Update row in sheet

Block 6 - Get-Ideas

Block 7 - Sticky Note

Block 8 - OpenAI Chat Model1

Block 9 - Generate-Prompt-and-Caption

Block 10 - Sticky Note1

Block 11 - Sticky Note2

Block 12 - Sticky Note3

Block 13 - Sticky Note4

Block 14 - Sticky Note5

Block 15 - Sticky Note6

Block 16 - Sticky Note7

3. Summary Table

4. Reproducing the Workflow from Scratch

1. Download the workflow JSON

2. Import the template into n8n

3. Configure credentials and variables

4. Test with sample data

5. Activate and monitor

5. General Notes & Resources

Frequently asked questions