Running a recurring task with ChatGPT—like generating daily content, summaries, reports, or emails—shouldn’t require you to copy-paste a prompt every day. In this guide, you’ll learn how to automate ChatGPT using n8n (a powerful open-source automation platform) and the OpenAI API to run a fixed prompt every day at the same time—completely hands-free.
Whether you’re a marketer, freelancer, consultant, or content creator, this step-by-step solution will save you time and effort while maintaining full control over your AI workflows.
Why Automate ChatGPT Prompts?
Save Time and Mental Bandwidth
Manual tasks eat up valuable time. If you find yourself running the same ChatGPT prompt daily (e.g., for blog ideas, daily summaries, or content snippets), automation is the smarter way forward.
Increase Consistency and Productivity
Automation ensures your task runs on time—every single day—without forgetting or delays. This is crucial for daily newsletters, SEO content, or social posts.
Achieve No-Code Flexibility
Tools like n8n allow you to create powerful, customizable workflows using a visual editor—no need for a developer.
What You’ll Need to Set Up
Once these are in place, you can create a workflow that runs your desired ChatGPT prompt every day at the same time.
Step-by-Step Guide to Automate ChatGPT with n8n
1. Set Up Your n8n Instance
Sign up at n8n.io or self-host n8n on your server. You’ll access a visual flow builder that supports time triggers, HTTP requests, APIs, and more.
2. Add a Cron Trigger Node
Start your workflow by adding a Cron node to schedule your task:
3. Add the OpenAI Node or HTTP Request Node
n8n has built-in OpenAI support. You can either:
Use the OpenAI node to configure the ChatGPT request, or
Use an HTTP request node if you want raw control over the API
Example API setup using the HTTP node:
{
"method": "POST",
"url": "https://api.openai.com/v1/chat/completions",
"headers": {
"Authorization": "Bearer YOUR_OPENAI_API_KEY",
"Content-Type": "application/json"
},
"body": {
"model": "gpt-4",
"messages": [
{
"role": "user",
"content": "Write a 200-word motivational quote for marketers"
}
]
}
}
4. Add Output: Save or Send the Response
Once the response is generated, you can send it wherever you want:
Send it via email (use the Email node)
Post to Slack or Discord
Save to Google Sheets or Notion
Store in a local file or database
Use Cases for Daily ChatGPT Automation
Marketing Content Generation
Run a prompt that generates daily tweet threads, newsletter intros, blog titles, or SEO summaries. Your AI content machine starts producing—on time—every day.
Sales Prospecting Scripts
Use a fixed prompt to generate cold outreach messages, daily prospect call scripts, or lead-nurturing ideas.
Freelancer Daily Logs
Set up prompts that summarize your daily tasks, generate client update templates, or even invoice summaries.
Tips for Crafting a Good Prompt
Be Clear and Specific
Don’t leave your prompt open-ended. Clearly define the length, format, tone, and purpose.
Test Before Automating
Run your prompt manually in ChatGPT or the OpenAI playground first. Refine it for consistent output before automating it in n8n.
Log and Monitor Outputs
Include a logging node in your n8n flow or send a copy of the output to your inbox to catch any API or format issues early.
Conclusion: Build Your Daily AI Assistant
With n8n and the OpenAI API, you can finally automate ChatGPT to run the same prompt every day—without relying on manual input. It’s a powerful, scalable, and customizable solution for marketers, freelancers, and consultants who want to save time while staying consistent with their content and outreach.
At Makeinfo, we recently built a Chrome extension that can automate prompt submissions directly from Google Sheets. It’s a simple way to connect your spreadsheet content to ChatGPT with no coding required.
Contact us to learn more about this solution and how it can fit into your AI content workflow.
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