Understand GenAI beyond prompts

A free 7-day mini-course for ChatGPT/Claude/Gemini users who want to understand
- Why/How/When they failed?
- How they actually work?
- What can we do with them?

Get the free mini-course

One short email per day on prompts, context, files, images, costs, tools, agents, and local models.

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    Jheng-Hong YANG

    2026 Stencilzeit
    Founder

    Why this mini-course

    Most people already use ChatGPT/Claude/Gemini, but still feel unsure about what is happening underneath when they failed to fulfill your requests.

    This mini-course distills a hands-on Generative AI Workshop into practical lessons you can try immediately. You will learn how prompts, context, files, images, costs, tools, agents, and local models actually behave in real workflows.

    What will you learn?

    • What prompts and context actually send to the model
    • How files, PDFs, slides, tables, and images are converted before the model sees them
    • How tool calling and agents change the workflow
    • When local models and self-hosting make sense