ChatGPT Masterclass 2025: guide to advanced AI applications
In this masterclass, you'll learn how to maximize ChatGPT in 2025. From advanced prompt engineering to building your own GPTs, automating workflows with tools like Make.com, and combining ChatGPT with DALL·E for visual content creation. It's ideal for marketers, entrepreneurs, and digital professionals who want to go beyond standard usage.
In this masterclass, you will discover:
How to use ChatGPT as a fully-fledged assistant
The art of crafting powerful prompts (incl. frameworks)
How to create your own GPTs for your business or clients
Working with projects and long-term memory
Advanced applications for marketing, e-commerce, data, video, sales, and more
What is ChatGPT in 2025?
ChatGPT is an AI platform built on GPT-4o, OpenAI's latest language and multimodal AI. The platform allows you to:
Use text, images, speech, and files in your conversations
Build Custom GPTs with your own instructions, files, and tone-of-voice
Manage projects while preserving context across multiple sessions
Analyze files such as spreadsheets, PDFs, and presentations
Save and share prompt libraries with your team
In 2022, you might have used individual prompts, but now you can work with complete workflows within ChatGPT.
The art of powerful prompts
Why prompts make all the difference
A good prompt is like a well-formulated brief: the more specific, the better the output. Prompt engineering is the key skill that determines how efficient and valuable your AI work becomes.
Prompt framework: RACE
A useful model for structuring prompts is the RACE model:
R = Role → Assign a role to the AI: "You are an experienced email marketer"
A = Action → What needs to happen? "Write an A/B test for a win-back campaign"
C = Context → Who is the target audience, what is the product, which channel?
E = Examples → Provide examples or demonstrate the desired style
Prompt hacks that work
Add "Think aloud" for more transparent output
Use bullet points to force ChatGPT to provide structure
Let ChatGPT evaluate and improve its own answers
Working with Projects: maintaining context
One of the most powerful features of ChatGPT Plus (with GPT-4o) is the use of Projects:
Create a project for each client, campaign, or topic.
You can add multiple documents, images, or spreadsheets.
ChatGPT remembers previous conversations within that project
Perfect for long-term strategic applications
Use Cases:
Building a content strategy in 6 months
Prepare sales training per target audience
Generate all product descriptions for a new online store
Pro tip: Also use Projects to build presentations with a consistent style.
My GPTs: Build your own AI assistant
With My GPTs, you can build your own version of ChatGPT, complete with:
Instructions (who are you, what do you do?)
A specific tone of voice
Uploaded documents
API calls or built-in tools
Examples of custom GPTs:
An "Email Expert GPT" that exclusively writes email campaigns in your style
An "SEO Analyzer GPT" that identifies technical content errors
A "Shopify Copy GPT" that transforms all product descriptions into conversion-focused content
Pro tip: Combine this with your own brand style guide and tone-of-voice documents.
Advanced usage for marketers and entrepreneurs
✍️ Content Creation
Generate blog posts in Notion or Google Docs via Make.com
Create Instagram captions based on product descriptions
Structure LinkedIn posts with hook, story, reflection, and call-to-action
📈 Data analysis & reporting
Analyze CSV files: trends, outliers, predictions
Visually represent budgets or campaigns in tables or graphs
Prepare presentations based on dashboards
📦 E-commerce
Generate product descriptions per persona
Write SEO meta descriptions for thousands of products
Analyze reviews for customer insights
💬 Customer experience & sales
Prepare sales scripts for each persona
Automatically generate FAQs
Train customer service on tone of voice with My GPT
🎥 Video and podcast
Summarize transcripts into blog posts
AI-powered YouTube title & thumbnail generation
Summarize podcast episodes into show notes and quotes
Best practices for professional use
Work in Projects for long-term themes
Document successful prompts in a Notion database
Create team-specific GPTs for various functions: copywriting, advertising, SEO, and e-commerce.
Integrate with tools like Make.com, Zapier, Notion, and Google Sheets
Critically assess the output: review and edit where necessary.
In conclusion: the future of ChatGPT is hybrid
AI won't replace you, but a marketer who effectively uses AI will.
With the evolution towards GPTs, multimodal input, and long-term memory, ChatGPT in 2025 will no longer be used for isolated prompts, but as a full-blown assistant or even as a virtual colleague.
Those who embrace these tools now will gain a strategic advantage, not only in speed but also in depth and scalability.
🚀 Don't use ChatGPT as a gimmick. Use it as a system.
Frequently asked questions about the ChatGPT Masterclass
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You'll learn how to write effective prompts, customize GPTs, integrate AI into marketing workflows, and automate content with Make.com and DALL·E.
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A basic understanding of ChatGPT is useful, but the masterclass is structured to guide you step-by-step. Both tech-savvy marketers and curious entrepreneurs can participate.
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Yes, you'll receive a demo and live walkthrough on how to create your own custom GPT tailored to your tasks or business.
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Certainly. You'll discover how to combine ChatGPT with Make.com to automatically generate texts, publish content, and even schedule social media posts.
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Yes, participants gain access to a Notion template with prompts, a mini-flow for Make.com, and additional links for inspiration.
🚀 Get better results from AI, online marketing and e-commerce
Do you have ideas you want to implement faster? Do you want more leads, smarter marketing, or to better utilize AI in your company? We actively collaborate with you. Discover what AI can do for your growth, online marketing or e-commerce.
💬 Prefer to discuss things directly? Schedule a no-obligation video call with Frederiek.
👉 Or ask your question via the contact form, email frederiek@clickforest.com, or call +32 473 84 66 27.
📄 Looking for inspiration? Download our free whitepaper 'AI for SMEs in 2025' for practical tips & insights.
Together, we'll explore how you can get more out of your marketing, technology, and AI today.
