Using ChatGPT (챗GPT) Properly: From Practical Applications to APIs and RAG [Includes Prompt Cheat Sheet]

This course is a hands-on training program that leverages ChatGPT to analyze numerical and textual data and transform it into practical business reports, comprehensively covering everything from basic data structuring to pattern insight extraction, KPI analysis, automated customer feedback classification, and building automated templates for recurring reports, allowing you to develop both data interpretation and text conversion skills simultaneously. It maximizes learning effectiveness by providing data visualization hints and designing customized templates for teams and individuals in parallel.

The “AI Team Members Do It All” online course is a hands-on program where you learn to use AI not simply as an automation tool, but as an “AI team member” that works alongside you in carrying out practical tasks. The course is structured around common real-world workflows, including market research, proposal writing, strategy report creation, brand content visualization, project promotion and operations, and post-project management. Participants assign various AI tools—such as ChatGPT, Perplexity, Copilot, Canva, Gamma, Miricanvas, and Vrew—to roles including planning partner, strategic research partner, design partner, and operations support partner, and use them to complete actual work deliverables. Across 30 sessions, you will learn step by step, from the fundamental mindset for working with AI to practical prompt writing, market research, proposal and report writing, brand content creation, and project operations. By following the course, you can develop the AI collaboration skills needed to work independently like an entire team.

As AI rapidly permeates daily life and industries, attack techniques targeting these systems are evolving alongside them. This course is a practical, hands-on program designed to help you understand the latest security threats surrounding Generative AI and LLMs, automate security tasks using AI, and experience LLM jailbreak attacks and defenses firsthand.

With ChatGPT, create your own content (songs, comics, blogs, books, papers, etc.) and create new businesses.

Explore how LLM applications are shifting the development paradigm. Understand why LLMs are becoming a sustainable core technology through comparisons with existing technologies, and learn about the essential skills and mindset shifts required for developers. Gain insights from expert instructors to grasp the essence and future direction of LLM application development.

Your AI is no longer in the cloud. It runs directly on your laptop. Learn how to build a completely local Private AI environment using LM Studio and Ollama—for everything from data processing and document analysis to code generation. With no security concerns, no costs, and greater speed— move from simply “using” AI to “putting it to work” yourself.

Let's develop the ability to find rational decision-making models based on mathematical thinking by understanding various elements of AI and data, and solving real-world problems using ChatGPT and no-code programming!

The ultimate profitable service: I create fortune-telling services that keep running even while I sleep. With a service built in just one week, I generated 2 million won in revenue during the first month without spending anything on advertising. My second service, built recently in just three days, generated 340,000 won in net revenue in a single day. This is not just a simple 'click-and-go' fortune-telling service. I am in charge of creating fortune-telling services for one of Korea’s leading associations of professional fortune-tellers, and I also develop and operate fortune-telling services made using IP purchased from Naver Webtoon. Starting from cases I have operated myself, this course walks you through the process of creating a high-quality fortune-telling service for your own brand by conversing with AI—even if you have no technical background. You will implement everything from characters and stories to fortune-telling results, payment and automated delivery, and an admin dashboard, then connect customer acquisition through automated Threads posts, Meta ads, and YouTube content. This is a 'real' fortune-telling course focused not just on the fun of creating, but on monetization.

< WE CAN ChatGPT ALL-IN-ONE Master Class> #Growth recipes released fresh every week #Step-by-step from the beginning, becoming your AI expert

This course is a practice-oriented lecture that goes beyond 👉 just explaining the concepts of RAG (Retrieval-Augmented Generation), 👉 to building the actual working architecture yourself, 👉 and experiencing expansion and optimization. Starting from simple RAG examples, you will learn step-by-step—from Advanced RAG to Modular RAG and Agent-based RAG—at a level that can be immediately applied in the field.

Building your own emotional diary service with Spring AI + React It's time for our 4th project with Neo + Essential!

Using AI has become easier, but model cards and papers are still difficult to read, even just a few lines. Although you can look up the meanings of individual words, it’s not clear how those words connect to one another. This course builds up around 160 essential terms that frequently appear in AI documents, in the easiest order to understand them, so that in each lesson you can accurately read a single sentence from an actual document.

There may be people who have never taken my lecture, but no one has taken it only once. After teaching in person for so long, I have finally had the opportunity to create this online course. Since the commercialization of AI, I have produced and researched countless pieces of AI content. Based on that knowledge and experience, I have built a logical philosophy of my own and organized it into concepts that are easy for anyone to understand. For those who have been generating AI images without considering the underlying concepts, I will instill a proper foundation in you. Once you take this course, you will be able to create any AI image in the future. Have you never created an AI image before? That’s perfectly fine. You don't need any prior experience in AI image generation. By simply learning and practicing through this lecture, you can become an expert in AI content creation.

# AI Side Hustle King: Aiming for 1 Million Won per Month with 2 Hours a Day I'll reveal every detail of my know-how—raising two kids while generating 15 million won in pure profit / 60 million won in sales per month, working just 2 hours a day. I'm confident I'm the best at utilizing AI in online sales. Smart Store / Coupang / Branding - An all-in-one package covering sourcing / marketing / detail pages / sales This isn't about randomly churning out products based on luck. It's designed to read the market → create a structure that sells → systematically drive exposure and conversion. I've included only what's essential, in the right order, to minimize wasted effort while using minimal time. ## What This Course Does for You - Helps you select "products that sell" when you're unsure what to sell - Teaches you how to read keywords and intent to reach profitable customers first - Shows you strategies to avoid competition by changing "category names" for the same products - Sets up a roadmap for the structure and timing that generates exposure on Coupang and Naver - Boosts conversion rates with detail pages and connects reviews/blogs/ads - Reduces image/content creation time with AI, making 2-hour daily operations possible ## Core Flow Included in the Curriculum **1) Planning Products That Sell** - Selling customer "problems," not products - Extracting ideas from customers' inconvenient habits - Reading market depth through search patterns - Practice: Identify 3 problems your product solves **2) Practical Keyword Research** - Reading "intent" is more important than search volume - Capturing key points in the search → comparison → purchase flow - Differences between Coupang vs Naver keyword research - Practice: Finding keywords for your product **3) Categorization to Avoid Competition** - The principle that the same product enters a different market with a different name - Creating a competition-free position by inventing new category names - Success case analysis + niche exposure structure - Practice: Planning a new category name for your product **4) Platform Strategy (Coupang·Naver)** - Making top exposure through "structure," not "effort" - Understanding Coupang/Naver exposure logic - New category entry timing, reading traffic data - Practice: Creating a platform entry roadmap **5) Detail Pages That Create Conversions** - Customers buy emotions and confidence, not products - Designing storylines with emotion → awareness → persuasion flow - Practice: Rebuilding emotional points in your detail page - Actual production including redesign with ChatGPT/editor **6) AI Image·Content Creation Practice** - Quickly generating needed images with prompt design methods - Utilizing Freepik + visual content creation - Practice: Detail page creation and feedback **7) From Zero-Cost Marketing to Paid Advertising** - Zero-cost marketing: Building trust with review-type/experience-type content - Blogs: Combining exposure-focused writing with conversion-oriented structure - Paid ads: Dissecting Naver/Coupang ad structure, ROAS-based operations - Avoiding auto-bidding traps, designing thumbnails/keywords centered on CTR - Practice: Designing ad promotions for your product ## Why It's Efficient This course doesn't just tell you "what to do"— it connects 'product-keyword-category-platform-detail page-marketing-advertising' in a single line, in the order that actually makes money. 2-3 million won courses? There are many good courses. But I'm confident there's no course with this level of quality at this price! The most fatal thing about a 2-hour-a-day side hustle is working hard in the wrong direction. This course is designed to save that time by making you move based on market and customer intent from the start, and structured so that once you build the system, it continues to generate sales.

This course is a 37-lesson, approximately 14-hour program that covers OpenAI’s AI coding agent, Codex, from start to finish. AI coding tools are now commonplace. However, most users remain at the level of accepting autocomplete suggestions or asking questions in a chat window. Agentic tools like Codex can do much more than that. They can read an entire project, modify multiple files simultaneously, run tests, and find and fix errors on their own. The problem is that they require an equivalent level of control. If you do not know what to allow and what to block, or how to teach the tool your project’s rules, you will end up cleaning up the code it creates afterward. This course focuses on how to establish that control. In the beginner section, you will learn installation and your first conversations, file editing and session management, and slash commands, while building a foundation in prompt writing. Through hands-on practice, you will internalize three principles: making clear requests, breaking down tasks, and verifying the results. The intermediate section is where the main content begins. You will configure behavior with config.toml, teach project rules with AGENTS.md, and manage memories with Memories. You will design safety boundaries yourself by combining the sandbox with four types of approval policies. The course then covers thread separation and parallel work, planning mode, connecting MCP servers, and creating custom skills based on SKILL.md. Finally, after covering web searches and Git automation, VS Code and Cursor integration, and hands-on FastAPI practice, you will examine Codex’s internal protocol, the SQ/EQ queue model. Understanding how the tool works changes how you respond when problems arise. The entire course follows the process of building a single service called TaskFlow. Rather than learning each feature in isolation, you will experience, in sequence, when and why each one is needed in a real project.

"I'd like to publish a book at least once in my lifetime, but it seems difficult. Maybe I could do it easily if it's a picture book..." "My child (grandchild) would be so happy if I made a picture book about a theme they love..." "I want to learn ChatGPT and Midjourney, but studying them normally is boring. I want to learn while having fun!" This course is for people like you.

[Up-to-Date Knowledge for Current Times] 1. Changes brought by AX, ChatGPT, and robot technology. 2. Commonalities of Blockbuster-Kodak Film-Nokia. 3. Five Current AX Keywords. - OOOO coin to maintain dollar hegemony. - Musk's OOOO to cut government operating costs. - Trump's OOOO strategic reserve. - China's OO kindergarten, OO receiving private education. - China's OO factory, with no workers, OO is no longer needed. 4. ChatGPT/Gemini/Grok - Write prompts based on previously learned content and compare results - Generate images with Claymotion infographics

We will teach you about AI, especially Generative AI like ChatGPT, by learning about it from various angles and showing you how to use AI tools that can be applied in practice. It consists of content such as marketing planning utilizing Generative AI, and an introduction to and utilization of Generative AI tools helpful for marketing content development (ChatGPT, image Generative AI).

An AI that understands Korean well, handles long documents, and even carries out real-world tasks—that is exactly the direction Solar Open 2 is aiming for. This class provides an accessible explanation of Upstage’s Solar Open 2 technical report in the order of “Introduction → Design → Training → Evaluation.” Technical terms are explained through everyday analogies and visual materials, enabling even beginners to understand “what,” “how,” and “why” as one coherent flow.

Learn winning resume principles & know-how and get resume coaching with ChatGPT.