Free AI image generator - n8n automation workflow with Gemini/ChatGPT

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Important notice

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

1. Workflow Overview

This n8n template demonstrates how to use AI to generate custom images from scratch fully automated, prompt driven, and ready to deploy at scale. Use cases are many: You can use it for marketing vi...

Best for

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

Tools used

n8n-nodes-base.set, @n8n/n8n-nodes-langchain.chattrigger, n8n-nodes-base.code, n8n-nodes-base.httprequest, n8n-nodes-base.telegramtrigger, @n8n/n8n-nodes-langchain.lmchatgooglegemini, n8n-nodes-base.stickynote, @n8n/n8n-nodes-langchain.agent

Source and attribution

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

Original n8n.io source

1.1 Workflow description

Title: Free AI image generator - n8n automation workflow with Gemini/ChatGPT
Workflow name: Free AI image generator - n8n automation workflow with Gemini/ChatGPT

This n8n template demonstrates how to use AI to generate custom images from scratch - fully automated, prompt-driven, and ready to deploy at scale.

Use cases are many: You can use it for marketing visuals, character art, digital posters, storyboards, or even daily image generation for your personal purposes.

How It Works

The flow is triggered by a chat message in N8N or via Telegram. The default image size is 1080 x 1920 pixels. To use a different size, update the values in the “Fields - Set Values” node before triggering the workflow.
The input is parsed into a clean, structured prompt using a multi-step transformation process.
Our AI Agent sends the final prompt to Google Gemini’s image model for generation (you can also integrate with OpenAI or other chat models).
The raw image data created by the AI Agent will be run through a number of codes to make sure it's feasible for your preview if needed and downloading.
Then, we use an HTTP node to fetch the result so you can preview the image.
You can send it back to the chat message in N8N or Telegram, or save it locally to your disk.

How To Use

Download the workflow package.
Import the package into your N8N interface.
Set up the credentials in the following nodes for tool access and usability: "Telegram Trigger"; "AI Agent - Create Image From Prompt"; "Telegram Response" or "Save Image To Disk" (based on your wish).
Activate the "Telegram Response" OR "Save Image To Disk" node to specify where you want to save your image later.
Open the chat interface (via N8N or Telegram).
Type your image prompt or detailed descriptions and send.
Wait for the process to run and finish in a few seconds.
Check the result in your desired saving location.

Requirements

Google Gemini account with image generation access.
Telegram bot access and chat setup (optional).
Connection to local storage (optional).

How To Customize

We’re setting the default image size to 1080 x 1920 pixels and the default image model to "flux". You can customize both of these values in the “Fields – Set Values” node. Supported image model options include: "flux", "kontext", "turbo", and "gptimage".
In the “AI Agent – Create Image From Prompt” node, you can also change the AI chat model. By default, it uses Google Gemini, but you can easily replace it with OpenAI ChatGPT, Microsoft AI Copilot, or any other compatible provider.

Need Help?

Join our community on different platforms for support, inspiration and tips from others.

Website: https://www.agentcircle.ai/ Etsy: https://www.etsy.com/shop/AgentCircle Gumroad: http://agentcircle.gumroad.com/ Discord Global: https://discord.gg/d8SkCzKwnP FB Page Global: https://www.facebook.com/agentcircle/ FB Group Global: https://www.facebook.com/groups/aiagentcircle/ X: https://x.com/agent_circle YouTube: https://www.youtube.com/@agentcircle LinkedIn: https://www.linkedin.com/company/agentcircle

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 - Fields - Set Values

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

Block 2 - When chat message received

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

Block 3 - Code - Clean Json

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

Block 4 - Code - Get Prompt

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

Block 5 - HTTP Request - Create Image

Type / Role: n8n-nodes-base.httpRequest - httpRequest
Config choices: Version 4.2

Block 6 - Telegram Trigger

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

Block 7 - Code - Set Filename

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

Block 8 - Google Gemini Chat Model

Type / Role: @n8n/n8n-nodes-langchain.lmChatGoogleGemini - lmChatGoogleGemini
Config choices: Version 1

Block 9 - Sticky Note1

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

Block 10 - Sticky Note

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 - AI Agent - Create Image From Prompt

Type / Role: @n8n/n8n-nodes-langchain.agent - agent
Config choices: Version 1.7

Block 15 - Telegram Response

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

Block 16 - Save Image To Disk

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

3. Summary Table

Workflow	Free AI image generator - n8n automation workflow with Gemini/ChatGPT
Complexity	advanced
Nodes	16
Categories	Content Creation, Multimodal AI
Author	Agent Circle
Published	03 Jul 2025

4. Reproducing the Workflow from Scratch

1. Download the workflow JSON

Use the JSON export at /data/workflows/5626/5626.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 Free AI image generator - n8n automation workflow with Gemini/ChatGPT 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.

Agent Circle

13 workflows

Nodes

n8n-nodes-base.set @n8n/n8n-nodes-langchain.chattrigger n8n-nodes-base.code n8n-nodes-base.httprequest n8n-nodes-base.telegramtrigger @n8n/n8n-nodes-langchain.lmchatgooglegemini n8n-nodes-base.stickynote @n8n/n8n-nodes-langchain.agent

Complexity

advanced

Published 03 Jul 2025

Likes 0

View on n8n.io Download Workflow

Install path: /data/workflows/5626/5626.json

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Free AI image generator - n8n automation workflow with Gemini/ChatGPT

Workflow preview

Important notice

1. Workflow Overview

Best for

Tools used

Source and attribution

1.1 Workflow description

This n8n template demonstrates how to use AI to generate custom images from scratch - fully automated, prompt-driven, and ready to deploy at scale.

How It Works

How To Use

Requirements

How To Customize

Need Help?

1.2 Logical Blocks

2. Block-by-Block Analysis

Block 1 - Fields - Set Values

Block 2 - When chat message received

Block 3 - Code - Clean Json

Block 4 - Code - Get Prompt

Block 5 - HTTP Request - Create Image

Block 6 - Telegram Trigger

Block 7 - Code - Set Filename

Block 8 - Google Gemini Chat Model

Block 9 - Sticky Note1

Block 10 - Sticky Note

Block 11 - Sticky Note2

Block 12 - Sticky Note3

Block 13 - Sticky Note4

Block 14 - AI Agent - Create Image From Prompt

Block 15 - Telegram Response

Block 16 - Save Image To Disk

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