Join a six-week, cohort-based program: one group starts together, follows the same
schedule, attends live sessions, and builds toward the same practical capstone.
I'll email you the schedule and enrollment details when the first group is finalized.
Build an LLM application with retrieval, a controlled agent loop, a FastAPI backend,
repeatable evaluation, and tracing through live instruction and guided feedback.
Taught by Mehdi Lotfinejad
Certified trainer · Data & AI consultant and educator
Master practical skills through structured courses, hands-on labs, concise lessons, real-world projects, and guided learning paths—whether you're taking your first steps or advancing your career.
A clear, structured path for learning modern data, AI, software engineering, databases, cloud, and DevOps—through courses, lessons, labs, and real-world projects.
Learn with clarity
Clear explanations and focused lessons help you understand complex topics step by step.
Practice by building
Work with real datasets, code examples, labs, and projects that turn concepts into practical skills.
Build real confidence
Create portfolio-ready projects and strengthen the skills needed for real technical work.
Learn at your own pace
Start from the basics, jump to the topic you need, pause anytime, and revisit lessons whenever you want.
100% free, forever
Every course, module, lesson, lab, project, and dataset is completely free. No paywalls, no subscriptions.
Browse the course catalog
Comprehensive courses in data science, machine learning, and AI.