Lilly Tech Systems
Learn Claude AI
Master Anthropic's AI assistant from the ground up. Learn prompting, understand models, explore the API, and build real-world applications — all for free.
Your Learning Path
Follow these lessons in order, or jump to any topic that interests you.
1. Introduction
What is Claude? Learn about Anthropic's AI assistant, its capabilities, values, and what makes it unique.
2. Getting Started
Access Claude, create your first conversation, and learn the basics of interacting with AI.
3. Models Overview
Understand Haiku, Sonnet, and Opus. Compare speed, capability, cost, and context windows.
4. Prompting Basics
Learn prompt structure, clear instructions, few-shot examples, and structured output formats.
5. Advanced Prompting
Chain of thought, system prompts, XML tags, prompt chaining, and parameter tuning.
6. Use Cases
Practical examples for writing, coding, data analysis, research, support, and education.
7. API Basics
Make your first API call with curl, Python, and JavaScript. Understand the Messages API.
8. Best Practices
Prompt engineering, safety, cost optimization, production deployment, and common pitfalls.
What You'll Learn
By the end of this course, you'll be able to:
Write Effective Prompts
Craft clear, structured prompts that get the results you need from Claude every time.
Use the API
Integrate Claude into your applications with the Messages API using Python, JavaScript, or curl.
Choose the Right Model
Select between Haiku, Sonnet, and Opus based on your needs for speed, cost, and capability.
Build Real Applications
Apply Claude to real-world use cases from content writing to code generation to data analysis.