Automated End-to-end Fine-tuning of Openai Models with Google Drive Integration

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": "gAzsjTGbfWuvAObi",
  "meta": {
    "templateCredsSetupCompleted": true
  },
  "name": "Fine-tuning with OpenAI models",
  "tags": [
    {
      "id": "2VG6RbmUdJ2VZbrj",
      "name": "Google Drive",
      "createdAt": "2024-12-04T16:50:56.177Z",
      "updatedAt": "2024-12-04T16:50:56.177Z"
    },
    {
      "id": "paTcf5QZDJsC2vKY",
      "name": "OpenAI",
      "createdAt": "2024-12-04T16:52:10.768Z",
      "updatedAt": "2024-12-04T16:52:10.768Z"
    }
  ],
  "nodes": [
    {
      "id": "ff65c2db-6a94-4e56-a10c-2538c9617df6",
      "name": "When clicking \u2018Test workflow\u2019",
      "type": "n8n-nodes-base.manualTrigger",
      "position": [
        220,
        320
      ],
      "parameters": {},
      "typeVersion": 1
    },
    {
      "id": "208fc618-0543-4552-bd65-9c808c879d88",
      "name": "Google Drive",
      "type": "n8n-nodes-base.googleDrive",
      "position": [
        440,
        320
      ],
      "parameters": {
        "fileId": {
          "__rl": true,
          "mode": "list",
          "value": "1wvlEcbxFIENvqL-bACzlLEfy5gA6uF9J",
          "cachedResultUrl": "https://drive.google.com/file/d/1wvlEcbxFIENvqL-bACzlLEfy5gA6uF9J/view?usp=drivesdk",
          "cachedResultName": "test_fine_tuning.jsonl"
        },
        "options": {
          "binaryPropertyName": "data.jsonl",
          "googleFileConversion": {
            "conversion": {
              "docsToFormat": "application/pdf"
            }
          }
        },
        "operation": "download"
      },
      "credentials": {
        "googleDriveOAuth2Api": {
          "name": "<your credential>"
        }
      },
      "typeVersion": 3
    },
    {
      "id": "3580d925-c8c9-446f-bfa4-faae5ed3f44a",
      "name": "AI Agent",
      "type": "@n8n/n8n-nodes-langchain.agent",
      "position": [
        500,
        800
      ],
      "parameters": {
        "options": {}
      },
      "typeVersion": 1.7
    },
    {
      "id": "d309da46-c44e-47b7-bb46-5ee6fe7e6964",
      "name": "When chat message received",
      "type": "@n8n/n8n-nodes-langchain.chatTrigger",
      "position": [
        220,
        800
      ],
      "parameters": {
        "options": {}
      },
      "typeVersion": 1.1
    },
    {
      "id": "84b896f7-d1dd-4485-a088-3c7f8154a406",
      "name": "OpenAI Chat Model",
      "type": "@n8n/n8n-nodes-langchain.lmChatOpenAi",
      "position": [
        380,
        1000
      ],
      "parameters": {
        "model": "ft:gpt-4o-mini-2024-07-18:n3w-italia::AsVfsl7B",
        "options": {}
      },
      "credentials": {
        "openAiApi": {
          "name": "<your credential>"
        }
      },
      "typeVersion": 1.1
    },
    {
      "id": "3bff93e4-70c3-48c7-b0b3-d2a9881689c4",
      "name": "Sticky Note1",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        220,
        560
      ],
      "parameters": {
        "width": 556.5145228215765,
        "height": 211.35269709543567,
        "content": "# Step 2\n\nOnce the .jsonl file for training is uploaded (See the entire process here.: https://platform.openai.com/finetune/), a \"new model\" will be created and made available via your API. OpenAI will automatically train it based on the uploaded .jsonl file. If the training is successful, the new model will be accessible via API.\n\neg. ft:gpt-4o-mini-2024-07-18:n3w-italia::XXXXX7B"
      },
      "typeVersion": 1
    },
    {
      "id": "ea67edd7-986d-47cd-bc1a-5df49851e27b",
      "name": "Sticky Note2",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        220,
        -5.676348547717737
      ],
      "parameters": {
        "width": 777.3941908713687,
        "height": 265.161825726141,
        "content": "# Step 1\n\nCreate the training file .jsonl with the following syntax and upload it to Drive.\n\n{\"messages\": [{\"role\": \"system\", \"content\": \"You are an experienced and helpful travel assistant.\"}, {\"role\": \"user\", \"content\": \"What documents are needed to travel to the United States?\"}, {\"role\": \"assistant\", \"content\": \"To travel to the United States, you will need a valid passport and an ESTA authorization, which you can apply for online. Make sure to check the specific requirements based on your nationality.\"}]}\n....\n\nThe file will be uploaded here: https://platform.openai.com/storage/files\n\n"
      },
      "typeVersion": 1
    },
    {
      "id": "87df3b85-01ac-41db-b5b6-a236871fa4e2",
      "name": "Upload File",
      "type": "@n8n/n8n-nodes-langchain.openAi",
      "position": [
        660,
        320
      ],
      "parameters": {
        "options": {
          "purpose": "fine-tune"
        },
        "resource": "file",
        "binaryPropertyName": "data.jsonl"
      },
      "credentials": {
        "openAiApi": {
          "name": "<your credential>"
        }
      },
      "typeVersion": 1.8
    },
    {
      "id": "c8ec10d4-ff83-461f-94ac-45b68d298276",
      "name": "Create Fine-tuning Job",
      "type": "n8n-nodes-base.httpRequest",
      "position": [
        900,
        320
      ],
      "parameters": {
        "url": "https://api.openai.com/v1/fine_tuning/jobs",
        "method": "POST",
        "options": {},
        "jsonBody": "={\n  \"training_file\": \"{{ $json.id }}\",\n  \"model\": \"gpt-4o-mini-2024-07-18\"\n} ",
        "sendBody": true,
        "sendHeaders": true,
        "specifyBody": "json",
        "authentication": "genericCredentialType",
        "genericAuthType": "httpHeaderAuth",
        "headerParameters": {
          "parameters": [
            {
              "name": "Content-Type",
              "value": "application/json"
            }
          ]
        }
      },
      "credentials": {
        "httpHeaderAuth": {
          "name": "<your credential>"
        }
      },
      "typeVersion": 4.2
    }
  ],
  "active": false,
  "settings": {
    "executionOrder": "v1"
  },
  "versionId": "a4aa95f5-132b-4aa3-a7f5-3bb316e00133",
  "connections": {
    "Upload File": {
      "main": [
        [
          {
            "node": "Create Fine-tuning Job",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Google Drive": {
      "main": [
        [
          {
            "node": "Upload File",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "OpenAI Chat Model": {
      "ai_languageModel": [
        [
          {
            "node": "AI Agent",
            "type": "ai_languageModel",
            "index": 0
          }
        ]
      ]
    },
    "When chat message received": {
      "main": [
        [
          {
            "node": "AI Agent",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "When clicking \u2018Test workflow\u2019": {
      "main": [
        [
          {
            "node": "Google Drive",
            "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.

• googleDriveOAuth2Api
• httpHeaderAuth
• openAiApi

About this workflow

This n8n workflow automates fine-tuning OpenAI models through these key steps: Manual Trigger: Starts with the "When clicking ‘Test workflow’" event to initiate the process. Downloads a file from Google Drive Upload to OpenAI: Uploads the file to OpenAI via the "Upload File"…

Source: https://n8n.io/workflows/2781/ — original creator credit. Request a take-down →

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