Prompt education
Break a vague request into a goal, context, success criteria, constraints, and output format, then build a ready-to-use prompt in your browser.
Open learning path →BUILT TOGETHER · SHARED OPENLY
Your first AI assignmentUnderstand from first principles,Finish with evidence
Across 31 courses, learn the reasons, sequence, and verification methods behind real work, from refining a single prompt to selecting an LLM, developing AI services, and operating GPUs and Kubernetes.
- Education areas
- 4
- Learning format
- Textbook + tools
- Learning flow
- Beginner → practical
FOUR LEARNING TRACKS
Start with the problem to solve, not the technology to search for
KoreaDev does not simply repeat search results. It connects the real decisions involved in prompt writing, LLM selection, AI software development, and AI infrastructure operations with principles, labs, and verification evidence.
LLM education
Learn 20 core units across eight in-depth courses, from tokens and Transformer principles to memory calculations, model provenance, RAG and evaluation, and safe serving.
Open learning path →Software development in the age of AI
Follow why technology changed from static websites to AI Agent operations and what costs appeared, then learn the standards for testable, deployable, and observable services.
Open learning path →Practical AI infrastructure education
Starting from an Ubuntu 24.04 baseline, practice the commands and decision evidence an operator must retain for GPUs, storage, Kubernetes, model serving, and incident recovery.
Open learning path →PEOPLE-FIRST EDITING
We record sources and decision criteria together
We follow the same editorial principles in every course so readers can verify the lesson under the same conditions and apply it elsewhere, instead of merely memorizing technology names.
- 01Explain from first principlesWe explain the constraint that led to each technology, how it works, and its new tradeoffs as one connected story.
- 02Hands-on verification labsWe separate the input, expected observation, success criteria, and stop conditions so you can make the judgment yourself.
- 03Official sources and review datesWe rely first on official primary sources for technical facts and record the original links and review date in every unit.
- 04Failure and recovery includedWe cover common misconceptions, failure boundaries, rollback, and revalidation, not just the happy path.
ABOUT & EDITORIAL RESPONSIBILITY
What KoreaDev builds
KoreaDev is an independent education project that helps adults new to AI use and infrastructure operations understand why systems work instead of memorizing product names. Every explanation, diagram, comparison table, and lab is composed for learning from publicly available official materials.
KoreaDev is responsible for operation and editing. Email us if you find a technical error, a broken lab, an accessibility problem, or a better official source. We verify each report before updating the lesson and its validation procedure.
PRIVACY & ADVERTISING
Privacy Policy
KoreaDev processes only the minimum information needed to provide education, retain language choices and learning progress, measure anonymous visits, and operate advertising. Text entered in the prompt tool is processed only in your browser and is neither sent to nor stored on KoreaDev servers.
Your selected language is kept for one year in the koreadev-locale cookie and browser storage, while course completion is kept in browser storage. Clearing cookies and site data in your browser removes this information.
Visit statistics retain the requested learning path, country-level location, a non-reversible anonymous visitor ID created with an operational secret, and a network range shortened to IPv4 /24 or IPv6 /48 for up to 400 days. Raw IP addresses are not stored in the statistics database, and no public statistics dashboard is provided.
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You can manage personalized ads in Google Ads Settings. The official links below explain how Google uses data from partner sites and Google's privacy practices. Send privacy or deletion requests to koreadev@koreadev.co.kr.