Domain 1Cowork Foundations & Agentic Architecture
Model Selection
TL;DR
The practice of choosing the appropriate Claude model (Haiku, Sonnet, or Opus) based on task complexity.
Definition
The practice of choosing the appropriate Claude model (Haiku, Sonnet, or Opus) based on task complexity. Haiku handles quick, mechanical tasks efficiently. Sonnet covers the majority of daily work. Opus is reserved for deep reasoning and complex analysis. Using the most powerful model for every task wastes your rate limit without quality improvement.
Exam Context
Questions present a task scenario and ask which model is most appropriate. The correct answer matches model capability to task complexity — not "always use the most powerful model."