Claude Foundations & Model Family
Master the Claude ecosystem. From model selection to advanced prompting techniques, learn how to choose the right model, use Adaptive Thinking, and structure prompts with XML tags for maximum reliability and clarity.
Welcome to the Claude Foundations series.
This is where you learn to build with Claude like a professional. Not benchmarks. Not marketing claims. Real decisions based on real work.
What you'll learn:
- How to choose between Opus, Sonnet, and Haiku (not based on benchmarks, based on your actual needs)
- The truth about model capabilities vs. what the numbers claim
- Adaptive Thinking and when to use it
- XML tag mastery for reliable prompts
- Prompt patterns that get 10x better results
- How Claude actually reasons under the hood
Who this is for:
Developers building production systems with Claude. People tired of following benchmarks and wanting to make smart API choices. Engineers who care about cost, speed, and reliability.
The philosophy:
Claude is not magic. It's a tool with trade-offs. Your job is to understand those trade-offs and make decisions that align with your constraints: budget, latency, accuracy, scale.
This series teaches you how to think like an engineer about Claude, not like a marketer.
Each chapter is a real investigation, real tests, real numbers. No fluff. Just what you need to know.