Friedemann Schuetz This workflow corresponds to n8n.io template #3688 — we link there as the canonical source.
This workflow follows the Form → Form Trigger recipe pattern — see all workflows that pair these two integrations.
The workflow JSON
Copy or download the full n8n JSON below. Paste it into a new n8n workflow, add your credentials, activate. Full import guide →
{
"id": "AqWXpCre4fsPEkAH",
"name": "Simple OpenAI Image Generator",
"tags": [],
"nodes": [
{
"id": "526c24bc-3bc5-48c3-ae1e-5b0c0352d07f",
"name": "Convert to File",
"type": "n8n-nodes-base.convertToFile",
"position": [
440,
0
],
"parameters": {
"options": {},
"operation": "toBinary",
"sourceProperty": "data[0].b64_json"
},
"typeVersion": 1.1
},
{
"id": "20fdcc11-5e8a-4788-b3a3-e556996b59f7",
"name": "Prompt and options",
"type": "n8n-nodes-base.formTrigger",
"position": [
0,
0
],
"parameters": {
"options": {},
"formTitle": "OpenAI Image Generator",
"formFields": {
"values": [
{
"fieldLabel": "Prompt",
"placeholder": "Snow-covered mountain village in the Alps",
"requiredField": true
},
{
"fieldType": "dropdown",
"fieldLabel": "Image size",
"fieldOptions": {
"values": [
{
"option": "1024x1024"
},
{
"option": "1024x1536"
},
{
"option": "1536x1024"
}
]
},
"requiredField": true
}
]
}
},
"typeVersion": 2.2
},
{
"id": "eb220b1f-2091-492a-931f-1f2e344b32a6",
"name": "OpenAI Image Generation",
"type": "n8n-nodes-base.httpRequest",
"position": [
220,
0
],
"parameters": {
"url": "https://api.openai.com/v1/images/generations",
"method": "POST",
"options": {},
"sendBody": true,
"sendHeaders": true,
"authentication": "predefinedCredentialType",
"bodyParameters": {
"parameters": [
{
"name": "model",
"value": "gpt-image-1"
},
{
"name": "prompt",
"value": "={{ $json.Prompt }}"
},
{
"name": "n",
"value": "={{ 1 }}"
},
{
"name": "size",
"value": "={{ $json['Image size'] }}"
}
]
},
"nodeCredentialType": "openAiApi"
},
"credentials": {
"openAiApi": {
"name": "<your credential>"
}
},
"typeVersion": 4.2
},
{
"id": "86718927-490e-4d97-9b0c-1118e2ccdcb6",
"name": "Return to form",
"type": "n8n-nodes-base.form",
"position": [
660,
0
],
"parameters": {
"options": {
"formTitle": "Result"
},
"operation": "completion",
"respondWith": "returnBinary",
"completionTitle": "Result",
"completionMessage": "Here is the created image:"
},
"typeVersion": 1
},
{
"id": "a069f63f-139e-4157-a44a-448224f2c119",
"name": "Sticky Note",
"type": "n8n-nodes-base.stickyNote",
"position": [
-600,
0
],
"parameters": {
"width": 500,
"height": 620,
"content": "# Welcome to my Simple OpenAI Image Generator Workflow!\n\nThis workflow creates an image with the new OpenAI image model \"GPT-Image-1\" based on a form input.\n\n## This workflow has the following sequence:\n\n1. Form trigger (image prompt and image size input)\n2. Generate the Image via OpenAI API.\n3. Return the image to the input form for download.\n\n## The following accesses are required for the workflow:\n- OpenAI API access: [Documentation](https://docs.n8n.io/integrations/builtin/credentials/openai/)\n\nYou can contact me via LinkedIn, if you have any questions: https://www.linkedin.com/in/friedemann-schuetz"
},
"typeVersion": 1
}
],
"active": false,
"settings": {
"executionOrder": "v1"
},
"versionId": "d2376df0-9c26-4723-9e97-07fc226e7a53",
"connections": {
"Convert to File": {
"main": [
[
{
"node": "Return to form",
"type": "main",
"index": 0
}
]
]
},
"Prompt and options": {
"main": [
[
{
"node": "OpenAI Image Generation",
"type": "main",
"index": 0
}
]
]
},
"OpenAI Image Generation": {
"main": [
[
{
"node": "Convert to File",
"type": "main",
"index": 0
}
]
]
}
}
}
Credentials you'll need
Each integration node will prompt for credentials when you import. We strip credential IDs before publishing — you'll add your own.
openAiApi
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About this workflow
This workflow creates an image with the new OpenAI image model "GPT-Image-1" based on a form input. Form trigger (image prompt and image size input) Generate the Image via OpenAI API. Return the image to the input form for download. OpenAI API access: Documentation Link your…
Source: https://n8n.io/workflows/3688/ — original creator credit. Request a take-down →
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