Generate AI Images with OpenAI GPT-Image-1

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": "FyoPGDh8r3pxcGxo",
  "name": "New OpenAI Image Generation",
  "tags": [
    {
      "id": "SGTGlhD84tHTcai7",
      "name": "image gen",
      "createdAt": "2025-04-07T09:41:10.936Z",
      "updatedAt": "2025-04-07T09:41:10.936Z"
    }
  ],
  "nodes": [
    {
      "id": "6b5f9234-351f-4f6b-a0ab-f0d30897f60a",
      "name": "Convert to File",
      "type": "n8n-nodes-base.convertToFile",
      "position": [
        320,
        400
      ],
      "parameters": {
        "options": {},
        "operation": "toBinary",
        "sourceProperty": "b64_json"
      },
      "typeVersion": 1.1
    },
    {
      "id": "9c60f827-bf37-486b-9026-0cbe97fd83b6",
      "name": "OpenAI - Generate Image",
      "type": "n8n-nodes-base.httpRequest",
      "position": [
        -120,
        400
      ],
      "parameters": {
        "url": "https://api.openai.com/v1/images/generations",
        "method": "POST",
        "options": {},
        "jsonBody": "={\n  \"model\": \"{{ $json.openai_image_model }}\",\n  \"prompt\": \"{{ $json.image_prompt }}\",\n  \"n\": {{ $json.number_of_images }},\n  \"size\": \"{{ $json.size_of_image }}\",\n  \"quality\": \"{{ $json.quality_of_image }}\"\n}",
        "sendBody": true,
        "sendHeaders": true,
        "specifyBody": "json",
        "authentication": "predefinedCredentialType",
        "headerParameters": {
          "parameters": [
            {
              "name": "Content-Type",
              "value": "application/json"
            }
          ]
        },
        "nodeCredentialType": "openAiApi"
      },
      "credentials": {
        "openAiApi": {
          "name": "<your credential>"
        }
      },
      "typeVersion": 4.2
    },
    {
      "id": "2dd04b96-5faf-48ec-a7b0-66a31866388d",
      "name": "When clicking \u2018Test workflow\u2019",
      "type": "n8n-nodes-base.manualTrigger",
      "position": [
        -560,
        400
      ],
      "parameters": {},
      "typeVersion": 1
    },
    {
      "id": "629799c0-d2ff-4c5a-95d8-54d5afd3ac66",
      "name": "Set Variables",
      "type": "n8n-nodes-base.set",
      "position": [
        -340,
        400
      ],
      "parameters": {
        "options": {},
        "assignments": {
          "assignments": [
            {
              "id": "2a5d52c2-5af1-4796-acba-4e1807fc7d7b",
              "name": "image_prompt",
              "type": "string",
              "value": "a 4-frame cartoon strip telling a joke\u00a0about\u00a0AI"
            },
            {
              "id": "c41a8091-d952-4f5a-ae24-3b0691bbce57",
              "name": "number_of_images",
              "type": "number",
              "value": 2
            },
            {
              "id": "00feec5a-19c8-43af-bf93-e0729d1391f8",
              "name": "quality_of_image",
              "type": "string",
              "value": "high"
            },
            {
              "id": "1b359a11-c05a-49c8-aa27-402b145fcbc1",
              "name": "size_of_image",
              "type": "string",
              "value": "1024x1024"
            },
            {
              "id": "6cf4ba85-d11a-48bb-9eaf-4084c9538d87",
              "name": "openai_image_model",
              "type": "string",
              "value": "=gpt-image-1"
            }
          ]
        }
      },
      "typeVersion": 3.4
    },
    {
      "id": "5f4e4bbe-7331-42dc-86a3-5d9de658ea07",
      "name": "Separate Image Outputs",
      "type": "n8n-nodes-base.splitOut",
      "position": [
        100,
        400
      ],
      "parameters": {
        "options": {},
        "fieldToSplitOut": "data"
      },
      "typeVersion": 1
    },
    {
      "id": "0c0310a4-f354-4810-a967-ea002be09cc4",
      "name": "Sticky Note",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        -600,
        580
      ],
      "parameters": {
        "width": 1140,
        "height": 220,
        "content": "## [CLICK HERE to Watch Video](https://youtu.be/YmDezgolqzU?si=BgMjRm55-T_CYAs7)\n\nOpenAI just dropped API access for their new image generation \u2014 and it changes everything. In this quick walkthrough, I show you exactly how to integrate it with n8n using an HTTP request node. Learn how to send prompts, convert base64 to binary, and automate image handling. This is a big one. Don\u2019t miss it.\n\n\ud83d\udd17 Official API Overview: https://openai.com/index/image-generation-api/\n\ud83d\udd17 API Reference \u2013 Create Image: https://platform.openai.com/docs/api-reference/images/create\n\n### *New:  Make.com scenario here: https://drive.google.com/file/d/1Uz-mA0LnUZ_tnUWBR2AAlVxs3LBlGKfk/view?usp=sharing\n"
      },
      "typeVersion": 1
    }
  ],
  "active": false,
  "settings": {
    "executionOrder": "v1"
  },
  "versionId": "c7fef832-b7ba-4cb1-ad36-7a82f81a7f90",
  "connections": {
    "Set Variables": {
      "main": [
        [
          {
            "node": "OpenAI - Generate Image",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Separate Image Outputs": {
      "main": [
        [
          {
            "node": "Convert to File",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "OpenAI - Generate Image": {
      "main": [
        [
          {
            "node": "Separate Image Outputs",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "When clicking \u2018Test workflow\u2019": {
      "main": [
        [
          {
            "node": "Set Variables",
            "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

About this workflow

How it works Trigger the workflow manually via the n8n UI. Define key parameters like the image prompt, number of images, size, quality, and model. Send a POST request to OpenAI’s image generation API using those inputs. Split the API response to handle multiple images. Convert…

Source: https://n8n.io/workflows/3705/ — original creator credit. Request a take-down →

More AI & RAG workflows → · Browse all categories →

Related workflows

Workflows that share integrations, category, or trigger type with this one. All free to copy and import.