ChatGPT Built My Online Course in 2 Days—And I Made $1,200

In 2025, generative artificial intelligence is no longer just a creative assistant—it’s a business partner. Tools like ChatGPT by OpenAI, Claude 3.5 by Anthropic, and Gemini Pro by Google DeepMind are powering a new generation of solo creators. I’m one of them.

With zero course-building experience, no ads, and only a modest online following, I used ChatGPT, Claude, and Gemini to build and launch a complete online course in just two days. In the first month, I made $1,212.36 in revenue.

Here’s the entire tech stack, prompt workflow, and monetization strategy I used to turn ideas into income—fast.

ChatGPT Validated My Niche and Picked the Winner

The first step to building a course isn’t writing content—it’s finding a topic people will actually pay for. I asked ChatGPT to help me identify high-demand course ideas in AI freelancing.

Prompt:

You're a product researcher with access to current trends. Give me 3 course topics for 2025 that target solo creators using AI, with low competition and proven monetization paths.

ChatGPT replied with:

• "AI Prompt Engineering for Freelancers"
• "Passive Income with Generative AI Tools"
• "Build a One-Person AI Agency"

Each came with keyword demand, pricing potential, and suggested formats. I chose the first because it aligned with my own workflow and client experience.

Claude Designed the Curriculum Like a Pro

Once I had the topic, I used Claude 3.5 to architect the course. Unlike ChatGPT, Claude excels in structural clarity and logical pacing.

Prompt:

Act as an expert instructional designer. Turn this topic—"Prompt Engineering for Freelancers"—into a 4-module course, with lesson titles, learning objectives, and one mini-assignment per module.

Claude responded with a full framework:

• Module 1: AI Fundamentals for Freelancers
• Module 2: Building Effective Prompts for Clients
• Module 3: Using Multi-AI Workflows (ChatGPT, Claude, Gemini)
• Module 4: Packaging and Selling Prompt Services

It felt like working with a professional course builder—but took just 7 minutes.

ChatGPT and Gemini Wrote the Full Scripts and Slides

For each lesson, I used ChatGPT for the long-form script and Gemini for slide summaries.

ChatGPT Prompt:

Write a lesson script (~900 words) for Module 2, Lesson 1: "Designing High-Impact Prompts for Client Briefs." Make it conversational and real-world.

Gemini Prompt:

Summarize this script into 5 slide bullets with examples from current 2025 prompt workflows. Add stats if available.

They generated:

• 12 detailed scripts
• 12 visual slide outlines (which I built in Gamma)
• Assignments I repurposed as downloadable templates

This combo made it easy to go from outline → lesson → assets without friction.

My AI Control Room: Chatronix—Unified Workspace, Zero Tab Chaos

This was the unlock.

Previously, working across Claude, ChatGPT, Gemini, and Notion was a mess of tabs, memory resets, and inconsistent formatting. Now I use a unified workspace for AI experimentation that integrates all my tools in one place.

Inside this next-gen dashboard, I can:

• Run the same prompt across multiple AI models and compare results
• Save course scripts, slides, and prompts in one folder
• Build reusable templates for landing pages, lesson plans, and emails
• Switch between Claude and ChatGPT without losing context

This AI super assistant changed how I work.

Run multiple AI models in one place with Chatronix

All of it for $25/month—less than the cost of one hour of design help.

Claude and ChatGPT Co-Wrote My Launch Funnel

Marketing is where most creators get stuck. I used AI to write the entire launch sequence:

• Claude structured my sales page: benefits, objections, CTA
• ChatGPT optimized the tone and headlines for conversion
• Together, they produced a 5-email sequence that got a 39% open rate

Example prompt:

You're a SaaS copywriter. Turn this course outline into a high-converting landing page with social proof, urgency, and FAQ section.

I hosted the course on Gumroad and promoted it via:

• A thread on Twitter (written in Gemini)
• My Notion newsletter (~1,200 subs)
• Direct DMs to freelancer groups

No paid ads. Just content and clarity.

Results Summary: From Prompt to Profit

Step	AI Used	Result
Niche validation	ChatGPT	Found profitable course with demand
Curriculum structure	Claude	Created 4-module, 12-lesson outline
Script & slides	ChatGPT, Gemini	Generated ~10K words and slide assets
Workflow coordination	Chatronix	Saved 8–12 hours, unified all tools
Launch funnel copy	Claude, ChatGPT	Email open rate 39%, $1.2K in first 30 days

Final Takeaway: In 2025, You Don’t Need a Team—You Need Smart Prompts

If you’re a digital creator, coach, or freelancer with knowledge to share, this is the best time in history to launch an online course.

With ChatGPT, Claude, and Gemini, and a centralized prompt engineering platform, you can:

• Validate ideas with market data
• Build high-quality lessons in hours
• Market like a pro—even if you hate selling

Discover AI productivity hacks inside Chatronix and turn your knowledge into recurring income today.