Courses from 1000+ universities
17 years ago, Krishna Kumar started offering free PMP prep online. Today, it’s a leading digital upskilling platform that helps millions upskill in AI, cybersecurity, data science, and more.
600 Free Google Certifications
IT & Networking
Management
Microsoft Excel
Ableton Live Course: Sound Production for Musicians and Artists
Medical Parasitology | 医å¦å¯„生虫å¦
How Things Work: An Introduction to Physics
Organize and share your learning with Class Central Lists.
View our Lists Showcase
Learn AI Models, earn certificates with free online courses from Stanford, MIT, University of Michigan, Duke and other top universities around the world. Read reviews to decide if a class is right for you.
Master multi-agent coordination in Python with OpenAI workflows, covering conversation history, sequential chaining, task delegation through handoffs, and custom validation techniques.
Master integrating OpenAI-hosted tools, custom functions, agent delegation, and external MCP servers to build powerful Python agents with enhanced capabilities.
Master agentic AI by building context-aware, tool-empowered agents with OpenAI SDK. Progress from basics to multi-agent workflows, custom tools, and security guardrails.
Master parameter-efficient fine-tuning techniques like LoRA to optimize large language models for specific domains while reducing costs and maintaining quality in production.
Master agentic AI systems using actor model principles, subagent architecture, and multi-language implementations in Rust, Go, and Deno for fault-tolerant, production-ready AI solutions.
Discover essential techniques for sourcing, preprocessing, and augmenting image datasets to train robust diffusion models with production-ready workflows.
Discover how to deploy and optimize AI inference services on Cloud Run with GPU support and data storage integration for efficient serverless ML applications.
Explore AI image generation with Google's Gemini API and Imagen model, from setting up the client to crafting effective prompts and handling generated images.
Master OpenAI chatbot development with Node.js, covering API integration, conversation management, system prompts, and multi-session handling in this hands-on tutorial.
Master the art of translating business goals into scalable AI architectures, integrating APIs, vector databases, and orchestration layers while balancing accuracy, cost, and performance.
Explore Spec-Driven Development with Claude Code—learn when specs add value, build project constitutions, create PRDs, evaluate specifications, and practice AI-assisted generation with critical review.
Master spec-driven API development using AI to generate implementation-ready specs, decompose features into atomic tasks, and orchestrate specialized agents—achieving 50%+ efficiency gains while building a real RecipeBox app.
Master fine-tuning LLMs with LoRA, QLoRA, and Diffusion Models using Hugging Face tools, building controllable image pipelines and a specialist LLM adapter from dataset creation to evaluation.
Unlock OpenAI API integration for intelligent code analysis, covering prompt engineering, diff parsing, context generation, and automated review systems.
Discover how to build an AI-powered code review assistant using OpenAI, from database setup and codebase ingestion to LLM analysis and web API deployment.
Get personalized course recommendations, track subjects and courses with reminders, and more.