Claude Code Models
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What is Claude Code Models?
Claude Code is powered by three distinct models—Opus, Sonnet, and Haiku— each optimized for a specific role within the development lifecycle. Claude Opus is the "deep thinker" and primary architect, used for complex reasoning, high-level system design, and surgical bug fixes in large codebases. Claude Sonnet serves as the versatile "balanced builder," providing a high-speed middle ground for daily tasks like implementing feature logic, writing boilerplate, and managing state across multiple files. Claude Haiku is the "fast-response specialist," designed for near-instant execution of lightweight tasks, such as generating rapid UI prototypes, drafting commit messages, or acting as parallel sub-agents to scan logs and run quick checks.
Free resources to learn Claude Code Models
- Official docsModels
- Official docsModels overview
- Official docsChoosing the right model
- ArticleA practical guide to Claude Code model selection
More in stage 3: Using Claude Code
Claude Code Models: common questions
Can I learn Claude Code Models in Hindi?
This lesson is written in English. Once you sign in, open it in the interactive course and ask the AI tutor to explain Claude Code Models in Hindi or Hinglish. The tutor answers from this lesson’s own text, so it stays on the syllabus, and it runs on your own Google, OpenAI or Anthropic key.
Is this Claude Code Models tutorial for beginners?
It is lesson 20 of 109 in the free Claude Code roadmap, in stage 3, Using Claude Code. If you are new to Claude Code, start from stage 1 and come back here in order; if you already know the earlier stages, this lesson stands on its own.