Create & publish Instagram carousels with AI research, Nano Banana Pro & Slack

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Important notice

This workflow is provided as-is. Please review and test before using in production.

1. Workflow Overview

Best for

Content Creation automation workflows
Multimodal AI automation workflows
advanced n8n builders looking for reusable templates

Tools used

n8n-nodes-base.scheduletrigger, @n8n/n8n-nodes-langchain.chainllm, n8n-nodes-base.slack, n8n-nodes-base.if, n8n-nodes-base.itemlists, n8n-nodes-base.facebookgraphapi, n8n-nodes-base.wait, n8n-nodes-base.httprequest

Source and attribution

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

Original n8n.io source

1.1 Workflow description

Title: Create & publish Instagram carousels with AI research, Nano Banana Pro & Slack
Workflow name: Create & publish Instagram carousels with AI research, Nano Banana Pro & Slack

This workflow allows you to complete the entire process of creating and publishing detailed Instagram Carousels—from research to posting—without ever leaving Slack. It leverages Nano Banana Pro, a state-of-the-art image generation model capable of rendering perfect text, to create professional "consultant-style" slides that AI previously struggled with.

How it works

Start in Slack: You trigger the workflow by entering a topic ensuring the entire process starts in Slack.
Research (AI Agent): An AI agent searches the web for deep insights on the topic.
Drafting (AI Agent): Structures research into a carousel format designed for engagement.
Review in Slack: The draft is sent to Slack as a formatted message. You approve it with a single click.
Image Generation: Upon approval, Nano Banana Pro generates professional infographic-style images with legible, high-density text.
Final Review in Slack: The created images and caption are sent back to Slack.
Publish from Slack: One final approval in Slack automatically publishes the Carousel to Instagram.

Setup steps

Configure Credentials:
- OpenAI API: Required for the Research and Drafting agents (GPT-4o/GPT-5 recommended).
- Slack API: Required for notifications and approval buttons.
- Kie.ai (Nano Banana Pro): Required for high-quality text-in-image generation.
- Facebook Graph API: Required for publishing to Instagram.
Set IDs:
- Open the "Slack Approval" nodes and set your Channel ID.
- Open the "Instagram" nodes and set your Instagram Business Account ID.
Customize Prompts (Optional): Adjust the system prompts in the AI nodes to match your brand's tone of voice.

Requirements

n8n version: 1.0+ (AI nodes required)
Kie.ai Account: For using the Nano Banana Pro model (excellent at rendering text).
Slack Workspace: For the Human-in-the-loop approval process.

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 1.1

Block 2 - Research Agent

Type / Role: @n8n/n8n-nodes-langchain.chainLlm - chainLlm
Config choices: Version 1.4

Block 3 - Drafting Agent

Type / Role: @n8n/n8n-nodes-langchain.chainLlm - chainLlm
Config choices: Version 1.4

Block 4 - Slack Approval (Draft)

Type / Role: n8n-nodes-base.slack - slack
Config choices: Version 2.1

Block 5 - Approval Loop

Type / Role: n8n-nodes-base.if - if
Config choices: Version 2.2

Block 6 - Image Prompt Gen

Type / Role: @n8n/n8n-nodes-langchain.chainLlm - chainLlm
Config choices: Version 1.4

Block 7 - Split Slides

Type / Role: n8n-nodes-base.itemLists - itemLists
Config choices: Version 3

Block 8 - IG Create Container

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

Block 9 - Wait (Upload)

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

Block 10 - IG Publish

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

Block 11 - Wait (Generation)

Type / Role: n8n-nodes-base.wait - wait
Config choices: Version 1.1

Block 12 - Image Generation (Kie.ai)

Type / Role: n8n-nodes-base.httpRequest - httpRequest
Config choices: Version 4.3

Block 13 - Get Image (Kie.ai)

Type / Role: n8n-nodes-base.httpRequest - httpRequest
Config choices: Version 4.3

Block 14 - JSON Parse (Content)

Type / Role: n8n-nodes-base.code - code
Config choices: Version 2

Block 15 - JSON Parse (Prompts)

Type / Role: n8n-nodes-base.code - code
Config choices: Version 2

Block 16 - Set Theme

Type / Role: n8n-nodes-base.set - set
Config choices: Version 3.4

Block 17 - Slack Approval (Final)

Type / Role: n8n-nodes-base.slack - slack
Config choices: Version 2.1

Block 18 - Theme Input (Slack)

Type / Role: n8n-nodes-base.slack - slack
Config choices: Version 2.3

Block 19 - OpenAI Model A

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

Block 20 - OpenAI Model B

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

Block 21 - Sticky Note

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

Block 22 - Sticky Note Research

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

Block 23 - Sticky Note Approval

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

Block 24 - Sticky Note Image

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

3. Summary Table

Workflow	Create & publish Instagram carousels with AI research, Nano Banana Pro & Slack
Complexity	advanced
Nodes	24
Categories	Content Creation, Multimodal AI
Author	Shun Nakayama
Published	11 Dec 2025

4. Reproducing the Workflow from Scratch

1. Download the workflow JSON

Use the JSON export at /data/workflows/11694/11694.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 Content Creation workflows Multimodal AI workflows

Frequently asked questions

What does Create & publish Instagram carousels with AI research, Nano Banana Pro & Slack 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 Content Creation, Multimodal AI use case.

Shun Nakayama

7 workflows

Nodes

n8n-nodes-base.scheduletrigger @n8n/n8n-nodes-langchain.chainllm n8n-nodes-base.slack n8n-nodes-base.if n8n-nodes-base.itemlists n8n-nodes-base.facebookgraphapi n8n-nodes-base.wait n8n-nodes-base.httprequest

Complexity

advanced

Published 11 Dec 2025

Likes 0

View on n8n.io Download Workflow

Install path: /data/workflows/11694/11694.json

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Create & publish Instagram carousels with AI research, Nano Banana Pro & Slack

Workflow preview

Important notice

1. Workflow Overview

Best for

Tools used

Source and attribution

1.1 Workflow description

How it works

Setup steps

Requirements

1.2 Logical Blocks

2. Block-by-Block Analysis

Block 1 - Schedule Trigger

Block 2 - Research Agent

Block 3 - Drafting Agent

Block 4 - Slack Approval (Draft)

Block 5 - Approval Loop

Block 6 - Image Prompt Gen

Block 7 - Split Slides

Block 8 - IG Create Container

Block 9 - Wait (Upload)

Block 10 - IG Publish

Block 11 - Wait (Generation)

Block 12 - Image Generation (Kie.ai)

Block 13 - Get Image (Kie.ai)

Block 14 - JSON Parse (Content)

Block 15 - JSON Parse (Prompts)

Block 16 - Set Theme

Block 17 - Slack Approval (Final)

Block 18 - Theme Input (Slack)

Block 19 - OpenAI Model A

Block 20 - OpenAI Model B

Block 21 - Sticky Note

Block 22 - Sticky Note Research

Block 23 - Sticky Note Approval

Block 24 - Sticky Note Image

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