n8n Template

AI-Powered Content Generation

Generate blog posts, social content, and emails with OpenAI using a consistent brand voice, then route drafts for review and publishing.

AI & MLIntermediateOpenAIWordPressTwitterMailchimpSlack

What this template does

This workflow wires OpenAI into your publishing stack with brand voice baked in. Trigger it with a topic and content type, and it builds a prompt from your voice guidelines, calls the model, formats the result for the target platform, and either publishes short content automatically or routes long-form drafts for human review in Slack. Token usage and cost are logged on every run.

The point is not to remove the human, it is to remove the blank page. Short assets go out fast, and anything substantial gets a review gate before it publishes.

How it works

The trigger is a webhook request carrying a topic and content type. The flow:

Receives the content request parameters.
Retrieves the brand voice guidelines.
Creates a prompt with the topic and tone.
Calls the OpenAI API (GPT-4).
Receives and parses the generated content.
Formats it for the target platform.
Sends it to the platform (WordPress, Twitter, or email).
Logs the generation and its cost.
Sends a Slack notification with a preview.

Setup steps

Create an OpenAI API key, set budget limits and alerts, and pick your model (GPT-4 or GPT-3.5-turbo).
Create a webhook that accepts topic, content_type, and tone, for example /generate?topic=AI&type=blog&tone=professional.
Build a system prompt carrying your brand voice, add the topic and outline to the user prompt, set temperature around 0.7, and cap max tokens by content type.
Wire up platforms: WordPress draft posts, scheduled tweets, email template inserts, and a Slack preview for review.
Add a human review step for long-form content using a Slack approval workflow, and collect feedback for prompt improvement.
Auto-publish short content, schedule blog posts for the next day, and monitor token usage, costs, and content quality.

When to use it

Use this for blog post drafting, social media content creation, email subject line generation, product descriptions, and FAQ answers. Keep the human review gate on anything that carries your brand’s authority, and treat the model output as a first draft rather than final copy.

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Download the workflow

Import-ready n8n JSON, no credentials or secrets baked in. In n8n, open Workflows, choose Import from File (or paste the JSON), then assign your own credentials to each node.

Download workflow JSON View raw

Preview the JSON

{
  "name": "AI-Powered Content Generation",
  "nodes": [
    {
      "parameters": {},
      "id": "546b6ad1-a2fe-467a-955a-a063a39fedb8",
      "name": "Start",
      "type": "n8n-nodes-base.manualTrigger",
      "typeVersion": 1,
      "position": [
        260,
        300
      ]
    },
    {
      "parameters": {
        "assignments": {
          "assignments": [
            {
              "id": "abdafd43-a7e0-4ed7-a57c-6c807768d4e3",
              "name": "topic",
              "value": "n8n automation for agencies",
              "type": "string"
            },
            {
              "id": "69843996-5fe7-4e01-b435-195a0ee946d4",
              "name": "tone",
              "value": "practical, no-hype",
              "type": "string"
            }
          ]
        }
      },
      "id": "9358c69c-9980-40d6-9081-dd14cd74c5f5",
      "name": "Topic + Brand Voice",
      "type": "n8n-nodes-base.set",
      "typeVersion": 3.4,
      "position": [
        560,
        300
      ]
    },
    {
      "parameters": {
        "resource": "text",
        "operation": "message"
      },
      "id": "a5d5a861-305d-4594-b5d6-49fa4e7ea3dd",
      "name": "Generate Draft",
      "type": "n8n-nodes-base.openAi",
      "typeVersion": 1.8,
      "position": [
        860,
        300
      ],
      "notes": "Assign OpenAI credentials."
    },
    {
      "parameters": {
        "select": "channel",
        "text": "=Draft ready for review: {{ $json.topic }}"
      },
      "id": "a536e61e-3fad-468b-806c-eb755c21bd56",
      "name": "Human Review Gate",
      "type": "n8n-nodes-base.slack",
      "typeVersion": 2.3,
      "position": [
        1160,
        300
      ],
      "notes": "Swap for a Wait node + approval if you want a hard gate."
    },
    {
      "parameters": {
        "operation": "update"
      },
      "id": "7189523f-0672-4920-8a77-32abfc4b4f37",
      "name": "Save to Docs",
      "type": "n8n-nodes-base.googleDocs",
      "typeVersion": 2,
      "position": [
        260,
        520
      ],
      "notes": "Assign Google Docs credentials."
    }
  ],
  "connections": {
    "Start": {
      "main": [
        [
          {
            "node": "Topic + Brand Voice",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Topic + Brand Voice": {
      "main": [
        [
          {
            "node": "Generate Draft",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Generate Draft": {
      "main": [
        [
          {
            "node": "Human Review Gate",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Human Review Gate": {
      "main": [
        [
          {
            "node": "Save to Docs",
            "type": "main",
            "index": 0
          }
        ]
      ]
    }
  },
  "active": false,
  "settings": {
    "executionOrder": "v1"
  },
  "pinData": {}
}

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