Automated Instagram commenting on selected profiles with GPT-4o and Phantombuster

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Important notice

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

1. Workflow Overview

Who’s it for Influencers and social media teams who want to comment automatically on posts from selected Instagram profiles —scaling engagement while staying within platform limits. How it works / ...

Best for

Social Media automation workflows
advanced n8n builders looking for reusable templates

Tools used

@n8n/n8n-nodes-langchain.lmchatopenai, n8n-nodes-base.wait, n8n-nodes-base.code, @n8n/n8n-nodes-langchain.agent, n8n-nodes-base.microsoftsharepoint, n8n-nodes-base.phantombuster, n8n-nodes-base.stickynote, n8n-nodes-base.set

Source and attribution

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

Original n8n.io source

1.1 Workflow description

Title: Automated Instagram commenting on selected profiles with GPT-4o and Phantombuster
Workflow name: Automated Instagram commenting on selected profiles with GPT-4o and Phantombuster

Who’s it for

Influencers and social-media teams who want to comment automatically on posts from selected Instagram profiles—scaling engagement while staying within platform limits.

How it works / What it does

Schedule Trigger runs every 2 h.
Profile Post Extractor fetches up to 20 posts per profile from your CSV.
Select Cookie rotates Instagram session-cookies.
Get Random Post selects one.
Create Comment (GPT-4o) writes ≤150-character reply in your chosen language.
Builds instagram_post_to_comment.csv, uploads to SharePoint.
Phantombuster Autocomment Agent posts it.
Logged in instagram_posts_already_commented.csv to prevent repeats.

How to set up

Same as the auto-liker, but also add instagram_posts_already_commented.csv (header postUrl).
Define tracked profiles in profiles_instagram.csv.
Configure comment prompt & language in Set ENV Variables.

Profile CSV format

Your profiles_instagram.csv must contain a header profileUrl and valid Instagram profile URLs. Example:

profileUrl
https://www.instagram.com/brand_account/
https://www.instagram.com/influencer123/

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 - OpenAI Chat Model

Type / Role: @n8n/n8n-nodes-langchain.lmChatOpenAi - lmChatOpenAi
Config choices: Version 1.2

Block 2 - Wait1

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

Block 3 - Get Random Post

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

Block 4 - Create Comment

Type / Role: @n8n/n8n-nodes-langchain.agent - agent
Config choices: Version 2

Block 5 - Create CSV Binary

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

Block 6 - Upload CSV

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

Block 7 - Get Autocomment Agent

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

Block 8 - Launch AC Agent

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

Block 9 - Get Response

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

Block 10 - Sticky Note2

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

Block 11 - Set ENV Variables

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

Block 12 - Schedule Trigger

Type / Role: n8n-nodes-base.scheduleTrigger - scheduleTrigger
Config choices: Version 1.2

Block 13 - Update file

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

Block 14 - Download file

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

Block 15 - Check if in List

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

Block 16 - If

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

Block 17 - Wait2

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

Block 18 - Prepare Updated Data

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

Block 19 - Extract from File

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

Block 20 - Convert to File

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

Block 21 - Get Available Session Cookies

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

Block 22 - Extract Cookies

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

Block 23 - Select Cookie

Type / Role: @n8n/n8n-nodes-langchain.agent - agent
Config choices: Version 2

Block 24 - OpenAI Chat Model2

Type / Role: @n8n/n8n-nodes-langchain.lmChatOpenAi - lmChatOpenAi
Config choices: Version 1.2

Showing the first 24 of 41 workflow blocks. Download the JSON for the full node graph.

3. Summary Table

Workflow	Automated Instagram commenting on selected profiles with GPT-4o and Phantombuster
Complexity	advanced
Nodes	41
Categories	Social Media
Author	plemeo
Published	16 Sept 2025

4. Reproducing the Workflow from Scratch

1. Download the workflow JSON

Use the JSON export at /data/workflows/8629/8629.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

Frequently asked questions

What does Automated Instagram commenting on selected profiles with GPT-4o and Phantombuster 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 use case.

plemeo

14 workflows

Nodes

@n8n/n8n-nodes-langchain.lmchatopenai n8n-nodes-base.wait n8n-nodes-base.code @n8n/n8n-nodes-langchain.agent n8n-nodes-base.microsoftsharepoint n8n-nodes-base.phantombuster n8n-nodes-base.stickynote n8n-nodes-base.set

Complexity

advanced

Published 16 Sept 2025

Likes 0

View on n8n.io Download Workflow

Install path: /data/workflows/8629/8629.json

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Automated Instagram commenting on selected profiles with GPT-4o and Phantombuster

Workflow preview

Important notice

1. Workflow Overview

Best for

Tools used

Source and attribution

1.1 Workflow description

Who’s it for

How it works / What it does

How to set up

Profile CSV format

1.2 Logical Blocks

2. Block-by-Block Analysis

Block 1 - OpenAI Chat Model

Block 2 - Wait1

Block 3 - Get Random Post

Block 4 - Create Comment

Block 5 - Create CSV Binary

Block 6 - Upload CSV

Block 7 - Get Autocomment Agent

Block 8 - Launch AC Agent

Block 9 - Get Response

Block 10 - Sticky Note2

Block 11 - Set ENV Variables

Block 12 - Schedule Trigger

Block 13 - Update file

Block 14 - Download file

Block 15 - Check if in List

Block 16 - If

Block 17 - Wait2

Block 18 - Prepare Updated Data

Block 19 - Extract from File

Block 20 - Convert to File

Block 21 - Get Available Session Cookies

Block 22 - Extract Cookies

Block 23 - Select Cookie

Block 24 - OpenAI Chat Model2

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